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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 7/16in-20in Hex Nut Kit 10 Pack Quick View
ARP

ARP 7/16in-20in Hex Nut Kit 10 Pack

$20.57
ARP200-8636
ARP Engine Components Hardware Kits - Other Hardware Kits - Other Under 100
ARP 7/16in-20in Hex Nut Kit 10 Pack
ARP 7/16-20 Hex Nut Kit Quick View
ARP

ARP 7/16-20 Hex Nut Kit

$20.57
ARP200-8635
ARP Engine Components Hardware Kits - Other Hardware Kits - Other Under 100
ARP 7/16-20 Hex Nut Kit
ARP 3/8-24 Hex Nut Kit (10 pack) Quick View
ARP

ARP 3/8-24 Hex Nut Kit (10 pack)

$6.56
ARP200-8634
ARP Engine Components Hardware Kits - Other Hardware Kits - Other Under 100
ARP 3/8-24 Hex Nut Kit (10 pack)
ARP 11/32-24 Hex Nut Kit (Pack of 10) Quick View
ARP

ARP 11/32-24 Hex Nut Kit (Pack of 10)

$6.36
ARP200-8633
ARP Engine Components Hardware Kits - Other Hardware Kits - Other Under 100
ARP 11/32-24 Hex Nut Kit (Pack of 10)
ARP 5/16 - 24 Hex Nut Kit (10 Pkg) Black Oxide Quick View
ARP

ARP 5/16 - 24 Hex Nut Kit (10 Pkg) Black Oxide

$6.36
ARP200-8632
ARP Engine Components Hardware Kits - Other Hardware Kits - Other Under 100
ARP 5/16 - 24 Hex Nut Kit (10 Pkg) Black Oxide
ARP 5/16in-24 Hex Nut Kit (10 Pack) Quick View
ARP

ARP 5/16in-24 Hex Nut Kit (10 Pack)

$7.20
ARP200-8630
ARP Engine Components Hardware Kits - Other Hardware Kits - Other Under 100
ARP 5/16in-24 Hex Nut Kit (10 Pack)
ARP 1/4-28 8740 Chrome Moly Nut Kit - 2 Pack (Black) Quick View
ARP

ARP 1/4-28 8740 Chrome Moly Nut Kit - 2 Pack (Black)

$3.27
ARP200-8621
ARP Engine Components Hardware Kits - Other Hardware Kits - Other Under 100
ARP 1/4-28 8740 Chrome Moly Nut Kit - 2 Pack (Black)
ARP 5/16 inch 24 Hex Flange Nut Kit Quick View
ARP

ARP 5/16 inch 24 Hex Flange Nut Kit

$1.69
ARP200-8614
ARP Engine Components Hardware - Singles Hardware Kits - Other Hardware Kits - Other Under 100
ARP 5/16 inch 24 Hex Flange Nut Kit
ARP 12 inch-20 Hex Nut Kit Quick View
ARP

ARP 12 inch-20 Hex Nut Kit

$1.80
ARP200-8607
ARP Engine Components Hardware - Singles Hardware Kits - Other Hardware Kits - Other Under 100
ARP 12 inch-20 Hex Nut Kit
ARP 7/16 inch-20 Hex Nut Kit Quick View
ARP

ARP 7/16 inch-20 Hex Nut Kit

$2.04
ARP200-8606
ARP Engine Components Hardware - Singles Hardware Kits - Other Hardware Kits - Other Under 100
ARP 7/16 inch-20 Hex Nut Kit
ARP 7/16 inch-20 Hex Nut Kit Quick View
ARP

ARP 7/16 inch-20 Hex Nut Kit

$2.04
ARP200-8605
ARP Engine Components Hardware - Singles Hardware Kits - Other Hardware Kits - Other Under 100
ARP 7/16 inch-20 Hex Nut Kit
ARP .875in OD x 7/16in ID Insert Washers (10 pack) Quick View
ARP

ARP .875in OD x 7/16in ID Insert Washers (10 pack)

$51.30
ARP200-8598
ARP Engine Components Hardware Kits - Other Hardware Kits - Other Under 100
ARP .875in OD x 7/16in ID Insert Washers (10 pack)
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