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ARP

They say that to be successful you must identify a need and satisfy it. Back the early 1970s, racing enthusiast Gary Holzapfel saw that many of his friends’ broken engines were caused by fastener failure.

At the time, there were no commercially available studs and bolts up to the challenge. So Holzapfel called upon his many years of fastener-making experience for a leading aerospace subcontractor and founded ARP (Automotive Racing Products).

In the ensuing years, the firm has grown from what was literally a backyard garage workshop into a highly diversified manufacturer with seven operational entities in Southern California with a combined area in excess of 200,000 square feet. These include forging, heat-treating, machining, quality control finishing and packaging/warehousing facilities in Santa Paula and Ventura, California.

Today, ARP’s product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline and throughout the suspension and frame. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, NASCAR and NHRA drag racing and marine applications.

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ARP

ARP M10 ID x 0.85in OD No Chamfer Washer (one washer)

$1.06
ARPAMW850N
ARP Under 100
ARP M10 ID x 0.85in OD No Chamfer Washer (one washer)
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ARP

ARP 7/16-14 x 7/16-20 x 3.250 inch Short Broached Stud - Black Oxide

$4.68
ARPAP3.250-1SB
ARP Engine Components Hardware - Singles Under 100
ARP 7/16-14 x 7/16-20 x 3.250 inch Short Broached Stud - Black Oxide
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ARP

ARP M10 Allen Key - 12PT Socket

$61.44
ARP920-0002
ARP Engine Components Hardware Kits - Other Under 100
ARP M10 Allen Key - 12PT Socket
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ARP

ARP M12-1.75in x 5.400in ARP 2000 Single Stud

$16.60
ARPAU5.400-2LUB
ARP Engine Components Hardware - Singles Under 100
ARP M12-1.75in x 5.400in ARP 2000 Single Stud
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ARP

ARP M9-1.25 x 4.24in OAL Stud w/ Broach

$13.08
ARPAI4.240-2B
ARP Engine Components Hardware - Singles Under 100
ARP M9-1.25 x 4.24in OAL Stud w/ Broach
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ARP

ARP Individual Head Stud From Kit (204-4705) for VW VR6

$10.62
ARPATP4.165-1LUB
ARP Engine Components Hardware - Singles Under 100
ARP Individual Head Stud From Kit (204-4705) for VW VR6
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ARP

ARP M11 x 1.5 & 7/16-20 CA25+ Stud

$47.19
ARPATP7.320-10GB
ARP Engine Components Hardware - Singles Under 100
ARP M11 x 1.5 & 7/16-20 CA25+ Stud
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ARP

ARP 10mm x 3.35in Long Broached w/ Long Threads Head and Main Stud

$6.04
ARPAM3.750-1LB
ARP Engine Components Hardware - Singles Under 100
ARP 10mm x 3.35in Long Broached w/ Long Threads Head and Main Stud
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ARP

ARP M9 X 1.25 U/C ARP2000 Rod Bolt Kit

$15.88
ARP301-6023
ARP Engine Components Rod Bolt Kits Under 100
ARP M9 X 1.25 U/C ARP2000 Rod Bolt Kit
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ARP

ARP M10-1.5in & M10-1.25 X 7.155in OAL Audi Head Stud - Single

$59.27
ARPAM7.155-10LGB
ARP Engine Components Hardware - Singles Under 100
ARP M10-1.5in & M10-1.25 X 7.155in OAL Audi Head Stud - Single
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ARP

ARP 1/2in ID No Chamfer Washer - Qty 100

$91.00
ARPARW100N-100
ARP Engine Components Hardware - Singles Under 100
ARP 1/2in ID No Chamfer Washer - Qty 100
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ARP

ARP M10 ACC Hex Head Bolt - 55UHL

$3.34
ARPHM12AM55-5C
ARP Engine Components Hardware - Singles Under 100
ARP M10 ACC Hex Head Bolt - 55UHL
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