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ARP

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). 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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Black Washers - 7/16 ID x 7/8 OD (10)

ARP
$8.99 - $8.99
$8.99
$8.99
$8.99 - $8.99
$8.99

Flat Washer - Special Purpose - Chamfered - 0.438 in ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$8.99 - $8.99
$8.99
$8.99
$8.99 - $8.99
$8.99

Black Washers - 7/16 ID x 3/4 OD (10)

ARP
$8.99 - $8.99
$8.99
$11.99
$11.99 - $11.99
$11.99

Flat Washer - Special Purpose - 0.438 in ID - 0.75 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$8.99 - $8.99
$8.99
$11.99
$11.99 - $11.99
$11.99

Black Washers - 7/16 ID x 13/16 OD (10)

ARP
$8.99 - $8.99
$8.99
$9.49
$9.49 - $9.49
$9.49

Flat Washer - Special Purpose - 0.438 in ID - 0.813 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$8.99 - $8.99
$8.99
$9.49
$9.49 - $9.49
$9.49

Black Washer - 9/16 ID x 1 OD 2pk

ARP
$2.99 - $2.99
$2.99
$2.99
$2.99 - $2.99
$2.99

Flat Washer - Special Purpose - 0.563 in ID - 1 in OD - 0.12 in Thick - Chromoly - Black Oxide - Pair

$2.99 - $2.99
$2.99
$2.99
$2.99 - $2.99
$2.99

Black Washers - 1/2 ID x 7/8 OD (2pk)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Flat Washer - Special Purpose - 0.5 in ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Pair

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

7/16 ID x 13/16 OD Black Washers (2pk)

ARP
$1.99 - $1.99
$1.99
$2.99
$2.99 - $2.99
$2.99

7/16 ID 13/16 OD black washers

$1.99 - $1.99
$1.99
$2.99
$2.99 - $2.99
$2.99

Black Washer - 10mm ID x 3/4 OD (1)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Flat Washer - Special Purpose - 10 mm ID - 0.75 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Black Washer - 7/16 ID x 3/4 OD (1)

ARP
$0.99 - $0.99
$0.99
$0.99
$0.99 - $0.99
$0.99

Flat Washer - Special Purpose - Chamfered - 0.438 in ID - 0.75 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$0.99 - $0.99
$0.99
$0.99
$0.99 - $0.99
$0.99

Black Washer - 9/16 ID x 1 OD (1)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Flat Washer - Special Purpose - 0.563 in ID - 1 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Black Washer - 1/2 ID x 7/8 OD (1)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Flat Washer - Special Purpose - 0.5 in ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Black Washer - 1/2 ID x 7/8 OD Chamfer (1)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Flat Washer - Special Purpose - Chamfered - 0.5 in ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Black Washer - 7/16 ID x 7/8 OD (1)

ARP
$0.99 - $0.99
$0.99
$1.49
$1.49 - $1.49
$1.49

Flat Washer - Special Purpose - Chamfered - 0.438 in ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$0.99 - $0.99
$0.99
$1.49
$1.49 - $1.49
$1.49
Save 50% Save %

Black Washer - 7/16 ID x 3/4 OD (1)

ARP
$1.99
$1.99 - $1.99
$1.99
$0.99
$0.99 - $0.99
$0.99

Flat Washer - Special Purpose - 0.438 in ID - 0.75 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99
$1.99 - $1.99
$1.99
$0.99
$0.99 - $0.99
$0.99
Save 50% Save %

Black Washer - 7/16 ID x 13/16 OD (1)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Flat Washer - Special Purpose - 0.438 in ID - 0.813 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Black Washer - 7/16 ID x 13/16 OD Chamfer (1)

ARP
$1.99 - $1.99
$1.99
$2.09
$2.09 - $2.09
$2.09

Flat Washer - Special Purpose - Chamfered - 0.438 in ID - 0.813 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99 - $1.99
$1.99
$2.09
$2.09 - $2.09
$2.09

Black Washer - 3/8 ID x 3/4 OD (1)

ARP
$1.99 - $1.99
$1.99
$2.09
$2.09 - $2.09
$2.09

Flat Washer - Special Purpose - 0.375 in ID - 0.75 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99 - $1.99
$1.99
$2.09
$2.09 - $2.09
$2.09
Save 20% Save %

Black Washer - 3/8 ID x 5/8 OD Chamfer (1)

ARP
$2.99
$2.99 - $2.99
$2.99
$2.39
$2.39 - $2.39
$2.39

Flat Washer - Special Purpose - Chamfered - 0.375 in ID - 0.625 in OD - 0.062 in Thick - Chromoly - Black Oxide - Each

$2.99
$2.99 - $2.99
$2.99
$2.39
$2.39 - $2.39
$2.39
Save 20% Save %

Black Washer - 12mm ID x 7/8 OD (1)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Flat Washer - Special Purpose - 12 mm ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Each

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Black Washers - .471 ID x 1.300 OD (10)

ARP
$22.99 - $22.99
$22.99
$23.99
$23.99 - $23.99
$23.99

Flat Washer - Special Purpose - 0.471 in ID - 1.3 in OD - 0.12 in Thick - Chromoly - Set of 10

$22.99 - $22.99
$22.99
$23.99
$23.99 - $23.99
$23.99

S/S Flat Washer - 3/8 ID x 5/8 OD (1)

ARP
$1.99 - $1.99
$1.99
$2.99
$2.99 - $2.99
$2.99

Flat Washer - General Purpose - 0.375 in ID - 0.625 in OD - 0.063 in Thick - Stainless - Polished - Each

$1.99 - $1.99
$1.99
$2.99
$2.99 - $2.99
$2.99

Self-Locking 12pt. Nut 3/8-24 (1)

ARP
$2.99 - $2.99
$2.99
$2.99
$2.99 - $2.99
$2.99

Nut - Locking - 3/8-24 in Thread - 12 Point Head - Mechanical - Steel - Cadmium - Each

$2.99 - $2.99
$2.99
$2.99
$2.99 - $2.99
$2.99

Self-Locking Hex Nut 3/8-24 (1)

ARP
$2.99 - $2.99
$2.99
$2.99
$2.99 - $2.99
$2.99

Nut - Locking - 3/8-24 in Thread - Hex Head - Mechanical - Steel - Cadmium - Each

$2.99 - $2.99
$2.99
$2.99
$2.99 - $2.99
$2.99

Self-Locking Hex Nut 5/16-24 (1)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99

Nut - Locking - 5/16-24 in Thread - Hex Head - Mechanical - Steel - Cadmium - Each

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99
Save 7% Save %

Valve Cover Stud Kit 1/4 12pt. (12)

ARP
$41.99
$41.99 - $41.99
$41.99
$38.99
$38.99 - $38.99
$38.99

Valve Cover Fastener - Stud - 1/4-20 in Thread - 1.500 in Long - 12 Point Nuts - Chromoly - Black Oxide - Set of 12

$41.99
$41.99 - $41.99
$41.99
$38.99
$38.99 - $38.99
$38.99
Save 7% Save %