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Caliper Bolts / Disc Screws
By OE Match
- Porsche Boxster 981 2.7L 2012-16
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche Cayman 2.7L 981 2013-16
This bolt secures the brake caliper bracket to the hub carrier, ensuring the caliper remains rigid, aligned and tensioned under braking loads. Manufactured to OE tolerance, the bolt features correct thread pitch (M12 × 1.5), length (77 mm), socket head style. This bolt is designed for use with front and rear brake calipers on selected Porsche 996, 997 and 981 models.
2x bolts are required per caliper.
Fits:
Porsche 996 C4S 2002 - 2005 (FRONT & REAR calipers)
Porsche 996 TURBO 2000 - 2005 (FRONT & REAR calipers)
Porsche 997 MKI C2S / C4S 3.8L 2005 - 2008 (FRONT & REAR calipers)
Porsche 997 MKII C2S / C4S 3.8L 2009 - 2012 (FRONT & REAR calipers)
Porsche 981 Boxster 2.7L 2012 - 2016 (FRONT calipers)
Porsche 981C Cayman 2.7L 2013 - 2016 (FRONT calipers)
Diagram Ref No 8
• Position on Vehicle: Brake caliper mounting bolt, caliper bracket to hub carrier, various caliper positions (front & rear) depending on model.
• Part Specification: Thread – M12 × 1.5; Length – 77 mm; Socket head style
• Function: Secures the brake caliper to the hub carrier, provides correct clamp load, ensures caliper remains correctly aligned and rigid under braking forces, prevents movement or flex that can affect braking performance, rotor alignment and pad wear.
Though often overlooked, the caliper mounting bolts perform a critical role in your braking system. Worn, stretched or reused bolts can lose clamping load, causing caliper movement, noise, uneven pad wear, rotor alignment issues or brake performance degradation. Replacing with a correct OE-Match bolt ensures proper retention, alignment and durability.
When and why to replace:
• The caliper has been removed or serviced (pad change, rotor replacement) and original bolts have been re-used multiple times.
• Bolts show signs of thread damage, corrosion, visible stretch (elongation) or wear on the socket head.
• You’re installing new calipers, rotors or upgrading to performance braking and want to renew all fasteners.
• You’re performing brake pad/rotor service and want to ensure all hardware is new for correct torque, clamp load and safe performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906705009
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.1 Panamera S V8 4.8L 2009-13
- Porsche 970.1 Panamera 4S V8 4.8L 2009-13
- Porsche 970.1 Panamera GTS V8 4.8L 2011-13
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
SET OF 8 (2 x Brake disc screws are required per disc/5mm spacer.)
Brake disc retaining screw is an extended length fixing screw designed specifically for Porsche vehicles fitted with factory 5mm wheel spacers. It secures the brake disc (rotor) to the wheel hub, ensuring correct disc positioning during wheel installation and brake servicing. On vehicles equipped with factory spacers, standard-length disc screws are too short to achieve proper thread engagement. This longer version compensates for the additional spacer thickness, allowing the brake disc to seat correctly against the hub and remain accurately aligned until the wheel bolts are installed. Manufactured to Porsche factory dimensions and thread specification, this screw provides correct fitment, corrosion resistance, and reliable retention during service and assembly. It is a critical but often overlooked component when working on cars with OEM wheel spacers.
Fits:
Porsche 996
Porsche 997.1
Porsche 997.2
Porsche 991.1
Porsche 991.2
Porsche Boxster 986
Porsche Boxster 987.1
Porsche Boxster 987.2
Porsche Cayman 987C.1
Porsche Cayman 987C.2
Porsche Panamera 970
Why Replacement Matters:
Using a standard-length brake disc screw on a spacer-equipped hub can result in insufficient thread engagement, leading to poor disc retention or stripped threads. Replacing missing or incorrect screws with the proper extended version ensures correct assembly, avoids hub damage, and maintains factory-correct brake installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90026910601
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
- Porsche Boxster 981 2.7L 2012-16
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche Cayman 2.7L 981 2013-16
This bolt secures the brake caliper bracket to the hub carrier, ensuring the caliper remains rigid, aligned and tensioned under braking loads. Manufactured to OE tolerance, the bolt features correct thread pitch (M12 × 1.5), length (77 mm), socket head style. This bolt is designed for use with front and rear brake calipers on selected Porsche 996, 997 and 981 models.
Sold Each, 2x bolts required per caliper.
Fits:
Porsche 996 C4S 2002 - 2005 (FRONT & REAR calipers)
Porsche 996 TURBO 2000 - 2005 (FRONT & REAR calipers)
Porsche 997 MKI C2S / C4S 3.8L 2005 - 2008 (FRONT & REAR calipers)
Porsche 997 MKII C2S / C4S 3.8L 2009 - 2012 (FRONT & REAR calipers)
Porsche 981 Boxster 2.7L 2012 - 2016 (FRONT calipers)
Porsche 981C Cayman 2.7L 2013 - 2016 (FRONT calipers)
Diagram Ref No 8
• Position on Vehicle: Brake caliper mounting bolt, caliper bracket to hub carrier, various caliper positions (front & rear) depending on model.
• Part Specification: Thread – M12 × 1.5; Length – 77 mm; Socket head style
• Function: Secures the brake caliper to the hub carrier, provides correct clamp load, ensures caliper remains correctly aligned and rigid under braking forces, prevents movement or flex that can affect braking performance, rotor alignment and pad wear.
Though often overlooked, the caliper mounting bolts perform a critical role in your braking system. Worn, stretched or reused bolts can lose clamping load, causing caliper movement, noise, uneven pad wear, rotor alignment issues or brake performance degradation. Replacing with a correct OE-Match bolt ensures proper retention, alignment and durability.
When and why to replace:
• The caliper has been removed or serviced (pad change, rotor replacement) and original bolts have been re-used multiple times.
• Bolts show signs of thread damage, corrosion, visible stretch (elongation) or wear on the socket head.
• You’re installing new calipers, rotors or upgrading to performance braking and want to renew all fasteners.
• You’re performing brake pad/rotor service and want to ensure all hardware is new for correct torque, clamp load and safe performance.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99906705009
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche Boxster 981 2.7L 2012-16
- Porsche Boxster 981 S / GTS 3.4L 2012-16
- Porsche Boxster 718 2.0L Manual (300 Bhp) 2017>>
- Porsche Boxster 718 2.0L PDK (300 Bhp) 2017>>
- Porsche Boxster S 718 2.5L Manual (350 Bhp) 05/2017>>
- Porsche Boxster S 718 2.5L PDK (350 Bhp) 05/2017>>
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 2.7L 981 2013-16
- Porsche Cayman S / GTS 3.4L 981 2013-16
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
OE Match brake caliper mounting bolt for Porsche 993, 996, 997.1, Boxster, and Cayman models. These replacement caliper fixing bolt help secure the brake caliper to the carrier or hub assembly during brake system service.
2 x Bolts required per caliper. Fits FRONT & REAR calipers
Fits:
Porsche 993 C2 / C4 1995 - 1998 - Front only (Not widebody)
Porsche 996 C2 / C4 1998 - 2005 - (Not widebody)
Porsche 997 C2 / C4 3.6L 1998 - 2005
Porsche 986 Boxster 1997 - 2004
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016 - (REAR only)
Porsche 718 (982) Boxster 2017 >> - (REAR only)
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2013 - 2016 - (REAR only)
Porsche 718 (982) Cayman 2017 >> - (REAR only)
Diagram ref no 8
This product supersedes Porsche's old part numbers: 90006729209, 99906704109, 99906704101
Brake caliper mounting bolts hold the caliper firmly in position so the brake pads can clamp the disc correctly. Secure caliper mounting is essential for safe braking performance, pedal feel, pad contact, and reliable brake operation.
Functions
• Replaces brake caliper mounting bolts
• Secures the brake caliper assembly
• Helps maintain correct caliper alignment
• Supports safe brake pad and disc contact
• Used during brake caliper, brake pad, or brake disc service
• Replaces corroded, rounded, stretched, damaged, or missing original bolts
• OE Match replacement fasteners for Porsche brake system repair.
Why Replace This Part?
Brake caliper mounting bolts are exposed to high braking loads, heat, road dirt, corrosion, and repeated service work. Worn, damaged, corroded, or stretched bolts may not provide correct clamping force and can compromise caliper security. Replacement is recommended when the bolts are removed during brake service or when their condition is uncertain.
When to Replace This Part
• Brake calipers are being removed or replaced
• Brake pads or brake discs are being serviced
• The original bolts are corroded, rounded, stretched, damaged, or missing
• Caliper mounting threads or fixing condition are being checked
• Brake vibration, movement, or noise is being investigated
• Preventative replacement is required during brake overhaul
• The vehicle is undergoing Porsche brake system restoration.
Where it fits on the car
These bolts fit at the brake caliper mounting points on Porsche 993, 996, 997.1, Boxster, and Cayman models. Exact position can vary depending on model, axle, caliper type, and brake package.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99907340201
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche 997 MKII Carrera C2 3.6L 2009-12
- Porsche 997 MKII Carrera C4 3.6L 2009-12
- Porsche 997 MKII Carrera C2S 3.8L 2009-12
- Porsche 997 MKII Carrera C4S 3.8L 2009-12
- Porsche 997 MKII GT3 / GT3 RS 2010-11
- Porsche 997 MKII Turbo 2010-13
- Porsche 997 MKII GT2 RS 2011-13
- Porsche 991.1 Carrera C2 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C2S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.1 Carrera C4 3.4L (350 Bhp) 2012-16
- Porsche 991.1 Carrera C4S / GTS 3.8L (400/430 Bhp) 2012-16
- Porsche 991.2 Carrera 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Carrera 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Carrera 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 2S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Cabriolet 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche 991.2 Targa 4 3.0L (370 Bhp) 2016-19
- Porsche 991.2 Targa 4S / GTS 3.0L (420/450 Bhp) 2016-19
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
- Porsche Cayman 718 2.0L Manual (300 Bhp)
- Porsche Cayman 718 2.0L PDK (300 Bhp)
- Porsche Cayman S 718 2.5L Manual (350 Bhp)
- Porsche Cayman S 718 2.5L PDK (350 Bhp)
- Porsche Cayman T 718 2.0L Manual (300 Bhp)
- Porsche Cayman T 718 2.0L PDK (300 Bhp)
- Porsche Cayman GTS 718 2.5L Manual (365 Bhp)
- Porsche Cayman GTS 718 2.5L PDK (365 Bhp)
- Porsche Cayman GTS 718 4.0L Manual (400 Bhp)
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
- Porsche Cayman GT4 Clubsport
- Porsche Cayman GT4 RS Clubsport 2020-2024
- Porsche 970.1 Panamera V6 3.6L 2WD 2009-13
- Porsche 970.1 Panamera 4 V6 3.6L 4WD 2009-13
- Porsche 970.1 Panamera S V8 4.8L 2009-13
- Porsche 970.1 Panamera 4S V8 4.8L 2009-13
- Porsche 970.1 Panamera GTS V8 4.8L 2011-13
- Porsche 970.1 Panamera Turbo V8 4.8L 2009-13
- Porsche 970.1 Panamera Turbo S V8 4.8L 2009-13
- Porsche 970.1 Panamera Diesel V6 3.0L 2011-13
- Porsche 970.1 Panamera S Hybrid V6 3.0L 2011-13
- Porsche 970.2 Panamera V6 3.6L 2WD (310Hp) 2014-16
- Porsche 970.2 Panamera 4 V6 3.6L 4WD (310Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD (420Hp) 2014-16
- Porsche 970.2 Panamera S V6 Turbo 3.0L 2WD Executive 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD (420Hp) 2014-16
- Porsche 970.2 Panamera 4S V6 Turbo 3.0L 4WD Executive 2014-16
- Porsche 970.2 Panamera GTS V8 4.8L 4WD (440Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 4.8L (520Hp) 2014-16
- Porsche 970.2 Panamera Turbo V8 Executive 2014-16
- Porsche 970.2 Panamera Turbo S V8 4.8L 2014-16
- Porsche 970.2 Panamera Diesel V6 3.0L (250Hp) 2014-16
- Porsche 970.2 Panamera S E-Hybrid V6 3.0L (416Hp) 2014-16
2 x Brake disc screws are required per disc/5mm spacer.
Brake disc retaining screw is an extended length fixing screw designed specifically for Porsche vehicles fitted with factory 5mm wheel spacers. It secures the brake disc (rotor) to the wheel hub, ensuring correct disc positioning during wheel installation and brake servicing. On vehicles equipped with factory spacers, standard-length disc screws are too short to achieve proper thread engagement. This longer version compensates for the additional spacer thickness, allowing the brake disc to seat correctly against the hub and remain accurately aligned until the wheel bolts are installed. Manufactured to Porsche factory dimensions and thread specification, this screw provides correct fitment, corrosion resistance, and reliable retention during service and assembly. It is a critical but often overlooked component when working on cars with OEM wheel spacers.
Fits:
Porsche 996
Porsche 997.1
Porsche 997.2
Porsche 991.1
Porsche 991.2
Porsche Boxster 986
Porsche Boxster 987.1
Porsche Boxster 987.2
Porsche Cayman 987C.1
Porsche Cayman 987C.2
Porsche Panamera 970
Why Replacement Matters:
Using a standard-length brake disc screw on a spacer-equipped hub can result in insufficient thread engagement, leading to poor disc retention or stripped threads. Replacing missing or incorrect screws with the proper extended version ensures correct assembly, avoids hub damage, and maintains factory-correct brake installation.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90026910601
The product you are viewing cross references to these numbers
- Porsche Boxster 986 2.5L 1997-99
- Porsche Boxster 986 2.7L 1999-02
- Porsche Boxster S 986 3.2L 1999-02
- Porsche Boxster 986 2.7L 2003-04
- Porsche Boxster S 986 3.2L 2003-04
- Porsche Boxster 987 2.7L 2005-08/08
- Porsche Boxster 987 S 3.2/3.4L 2005-08/08
- Porsche 911 1965-1968 2.0L / 912 SWB (F)
- Porsche 911 1968-1973 2.2L / 2.4L / 2.7L RS LWB (F)
- Porsche 911 1974-1977 2.7L / 1976-77 3.0 Carrera
- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
- Porsche 911 1975-1977 3.0L Turbo (930)
- Porsche 911 1978-1989 3.3L Turbo (930)
- Porsche 964 (911) C2 1989-93
- Porsche 964 (911) C4 1989-93
- Porsche 964 (911) RS 3.6L 1991-93
- Porsche 964 (911) RS 3.8L 1991-93
- Porsche 964 (911) TURBO 3.3L 1991-93
- Porsche 964 (911) TURBO 3.6L 1991-93
- Porsche 993 (911) C2 1994-97
- Porsche 993 (911) C4 1994-97
- Porsche 993 (911) RS 1994-97
- Porsche 993 (911) C2S 1994-97
- Porsche 993 (911) C4S 1994-97
- Porsche 993 (911) TURBO 1994-96
- Porsche 993 (911) GT2 1994-97
- Porsche 993 (911) TURBO S 1994-97
- Porsche 996 C2 3.4L 1997-08/01
- Porsche 996 C4 3.4L 1997-08/01
- Porsche 996 C2 3.6L 09/01-2005
- Porsche 996 C4 3.6L 09/01-2005
- Porsche 996 C4S 3.6L 09/01-2005
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 996 GT3 MKI 1999-02
- Porsche 996 GT3 MKII 2003>>
- Porsche 996 GT3 RS 2003-04
- Porsche 997 MK1 Carrera 2 3.6L 2005-08
- Porsche 997 MK1 Carrera 2S 3.8L 2005-08
- Porsche 997 MK1 Carrera 4 3.6L 2005-08
- Porsche 997 MK1 Carrera 4S 3.8L 2005-08
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MK1 GT3 / GT3 RS 2007-09
- Porsche 997 MK1 GT2 2007-09
- Porsche Cayman 2.7L 987C 2006-08
- Porsche Cayman S 3.4L 987C 2005-08
- Porsche 944 2.5L 8V 1982-87
- Porsche 944 2.7L 8V 1988-89
- Porsche 944S 2.5L 16V 1987-88
- Porsche 944S2 3.0L 16V 1989-91
- Porsche 944 Turbo 2.5L 8V 1985-88
- Porsche 944 Turbo 2.5L 8V 1989-91
- Porsche 944 Turbo S 2.5L 8V 1988
Brake Disc Mounting Screw - M6 x 12
Sold each - 2 required per disc
Maintain secure and accurate brake disc installation with
this OE Match Brake Disc Mounting Screw 90026904701. Used across a wide range
of Porsche models, this small but essential fastening component secures the
brake disc (rotor) to the wheel hub during assembly and servicing.
Fits:
- Porsche 911
- Porsche 924S
- Porsche 944
- Porsche 964
- Porsche 993
- Porsche 996
- Porsche 997
- Porsche Boxster 986
- Porsche Boxster 987
- Porsche Cayman
Although the wheel bolts ultimately clamp the brake disc firmly against the hub, the brake disc mounting screw plays an important role in keeping the disc correctly aligned during installation. This ensures accurate positioning of the brake rotor, simplifies wheel and brake servicing and helps prevent movement while the wheel is removed.
Due to repeated exposure to heat, corrosion, moisture and brake servicing, these screws can become seized, damaged or stripped over time. Replacing the mounting screw whenever the brake discs are renewed helps ensure trouble-free future maintenance and correct brake assembly.
What Does a Brake Disc Mounting Screw Do?
The brake disc mounting screw secures the brake disc to the wheel hub before the wheel is fitted.
Its primary functions include:
- Locating the brake disc correctly on the hub
- Maintaining disc alignment during assembly
- Preventing disc movement when the wheel is removed
- Simplifying brake servicing
- Supporting accurate brake disc installation
- Assisting wheel and hub assembly procedures
- Helping maintain factory brake fitment standards
Although small, this component plays an important role in brake system maintenance and assembly.
Why Do Brake Disc Mounting Screws Fail?
Brake mounting screws operate in a harsh environment and are frequently removed during brake servicing.
Common causes of failure include:
- Corrosion and rust
- Heat cycling from braking systems
- Rounded or stripped screw heads
- Seized threads
- Improper removal techniques
- Galvanic corrosion between metals
- Age-related deterioration
- Repeated brake servicing
It is common for original screws to become difficult to remove after years of service.
When Should Brake Disc Mounting Screws Be Replaced?
Brake disc mounting screws should always be inspected during brake maintenance.
Replacement is recommended when:
- Installing new brake discs
- Screw heads become damaged
- Threads show signs of wear
- Corrosion is present
- Screws become seized during removal
- Carrying out brake refurbishment work
- Restoring older Porsche models
- Performing preventative maintenance
Many Porsche specialists routinely replace retaining screws during brake disc replacement to avoid future servicing issues.
Why Replacement Matters
Replacing worn or corroded brake disc mounting screws helps ensure correct brake assembly and easier future maintenance.
Benefits include:
- Secure brake disc location
- Easier brake servicing
- Reduced risk of seized hardware
- Improved assembly accuracy
- Better long-term reliability
- Prevention of damaged hub threads
- Restoration of factory fitment standards
- Professional-quality brake maintenance
A new retaining screw is an inexpensive but worthwhile addition to any brake overhaul.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90026904701
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OEMatch Caliper Bolts / Disc Screws — Stopping Power, Consistent Control
OEMatch supplies a selection of caliper bolts and disc screws for Porsche models. These fasteners secure calipers and discs to hubs and mounting brackets, preserving alignment and correct torque under heat and vibration. Regular inspection and renewal during brake service helps prevent corrosion-related seizure and maintains safe braking operation.
Understanding OEMatch Caliper Bolts / Disc ScrewsOEM (Original Equipment Manufacturer) parts are made by the same company that produced your Porsche’s original caliper bolts and disc screws. OE (Original Equipment) refers to parts matching original specifications for the caliper bolts and disc screws and may be supplied by alternative manufacturers. Aftermarket parts offer alternative options, sometimes with enhanced features or better value. OEMatch supplies non-OEM caliper bolts and disc screws engineered as direct-fit alternatives to OEM parts, made to original-spec dimensions and tolerances for Porsche models. Caliper bolts hold the caliper to its mounting bracket while disc screws locate the rotor to the hub; correct thread condition, specification and torque are essential to avoid movement, noise or uneven wear.
Benefits Include- Restores secure mounting and correct torque retention for reliable braking operation.
- Reduces the risk of seized or fractured fasteners during service and heating cycles.
- Improves resistance to corrosion and thread degradation in road and salt exposure.
- Corrosion from moisture, road salt and environmental exposure can seize threads and heads.
- Repeated tightening, incorrect torque or thread damage causes stretch and loss of clamping force.
- Heat cycling during intense braking can induce material fatigue or loosening if specification is wrong.
Replacing worn or corroded fasteners during brake servicing restores secure mounting, prevents vibration and uneven wear, and reduces the chance of component movement under load. Specifying the correct thread form and torque values is important for safety-critical braking joints; using purpose-selected replacements helps maintain system integrity on Porsche models.
Advantages- Selected for correct fit and thread form to match Porsche mounting points.
- Materials and finishes chosen to resist corrosion and heat exposure common to braking systems.
- Supplies suitable for restoration, routine maintenance or where original fasteners show wear.
- High-tensile steel caliper bolts with corrosion-resistant finish.
- Stainless steel disc screws for rotor location and longevity.
- Threadlocker-treated fasteners for high-heat or high-vibration applications.
These items affect safety-critical systems. Installation should be carried out by a qualified technician following model-specific procedures and torque settings. Use calibrated tools and new fasteners where specified. Recheck fasteners after initial mileage.