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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 - 10mm ID x .850 OD (10)

ARP
$10.99 - $10.99
$10.99
$16.99
$16.99 - $16.99
$16.99

Flat Washer - Special Purpose - 10 mm ID - 0.85 in OD - 0.115 in Thick - Chromoly - Black Oxide - Set of 10

$10.99 - $10.99
$10.99
$16.99
$16.99 - $16.99
$16.99

Black Washers - 5/16 ID x 13/16 OD (10)

ARP
$16.99 - $16.99
$16.99
$16.99
$16.99 - $16.99
$16.99

Flat Washer - Special Purpose - Chamfered - 0.313 in ID - 0.813 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$16.99 - $16.99
$16.99
$16.99
$16.99 - $16.99
$16.99

Black Washers - 5/16 ID x 13/16 OD (10)

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

Flat Washer - Special Purpose - 0.313 in ID - 0.813 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 - 5/16 ID x .675 OD (10)

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

Flat Washer - Special Purpose - Chamfered - 0.313 in ID - 0.675 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 - 5/16 ID x .675 OD (10)

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

Flat Washer - Special Purpose - 0.313 in ID - 0.675 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 Washers - 5/16 ID x .550 OD Chamfer (10)

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

Flat Washer - Special Purpose - Chamfered - 0.313 in ID - 0.55 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 Washers - 5/16 ID x .550 OD (10)

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

Flat Washer - Special Purpose - 0.313 in ID - 0.55 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
Save 7% Save %

Insert Washers - 1/2 ID (10)

ARP
$43.99
$43.99 - $43.99
$43.99
$40.99
$40.99 - $40.99
$40.99

Head Bolt Washer - 0.875 in OD - 0.500 in ID - 0.567 in Insert OD - Chromoly - Black Oxide - Head Bolts - Set of 10

$43.99
$43.99 - $43.99
$43.99
$40.99
$40.99 - $40.99
$40.99
Save 7% Save %

Insert Washers - 7/16 ID (10)

ARP
$42.99 - $42.99
$42.99
$42.99
$42.99 - $42.99
$42.99

Head Bolt Washer - 0.812 in OD - 0.438 in ID - 0.571 in Insert OD - Chromoly - Black Oxide - Head Bolts - Set of 10

$42.99 - $42.99
$42.99
$42.99
$42.99 - $42.99
$42.99
Save 7% Save %

Insert Washers - 3/8 ID (10)

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

Head Bolt Washer - 0.750 in OD - 0.375 in ID - 0.443 in Insert OD - Chromoly - Black Oxide - Head Bolts - Set of 10

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

Insert Washers - 5/16 ID (10)

ARP
$40.99 - $40.99
$40.99
$41.99
$41.99 - $41.99
$41.99

Head Bolt Washer - 0.625 in OD - 0.313 in ID - 0.380 in Insert OD - Chromoly - Black Oxide - Head Bolts - Set of 10

$40.99 - $40.99
$40.99
$41.99
$41.99 - $41.99
$41.99
Save 7% Save %

Insert Washers - 1/4 ID (10)

ARP
$45.99
$45.99 - $45.99
$45.99
$42.99
$42.99 - $42.99
$42.99

Head Bolt Washer - 0.562 in OD - 0.25 in ID - 0.318 in Insert OD - Chromoly - Black Oxide - Head Bolts - Set of 10

$45.99
$45.99 - $45.99
$45.99
$42.99
$42.99 - $42.99
$42.99
Save 7% Save %

Black Washers - 7/16 ID x 3/4 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 - 0.75 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 - 3/8 ID x 3/4 OD (10)

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

Flat Washer - Special Purpose - Chamfered - 0.375 in ID - 0.75 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 - 3/8 ID x .675 OD (10)

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

Flat Washer - Special Purpose - 0.375 in ID - 0.675 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 - 3/8 ID x 5/8 OD (10)

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

Flat Washer - Special Purpose - 0.375 in ID - 0.625 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

12mm ID Washers 10pk .875 OD Chamfer

ARP
$10.99 - $10.99
$10.99
$13.99
$13.99 - $13.99
$13.99

Flat Washer - Special Purpose - 12 mm ID - 0.875 in OD - 3 mm Thick - Chromoly - Black Oxide - Set of 10

$10.99 - $10.99
$10.99
$13.99
$13.99 - $13.99
$13.99

Black Washers - 3/8 ID x 5/8 OD (2)

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

Flat Washer - Special Purpose - 0.375 in ID - 0.625 in OD - 0.12 in Thick - Chromoly - Black Oxide - Pair

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

Black Washers - 7/16 ID x 13/16 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 - 0.813 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 - 12mm ID x 7/8 OD (10)

ARP
$10.99 - $10.99
$10.99
$10.99
$10.99 - $10.99
$10.99

Flat Washer - Special Purpose - 12 mm ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$10.99 - $10.99
$10.99
$10.99
$10.99 - $10.99
$10.99

Black Washers - 12mm ID x 3/4 OD (10)

ARP
$10.99 - $10.99
$10.99
$13.99
$13.99 - $13.99
$13.99

Flat Washer - Special Purpose - 12 mm ID - 0.75 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$10.99 - $10.99
$10.99
$13.99
$13.99 - $13.99
$13.99

Black Washers - 9/16 ID x 1 OD (10)

ARP
$9.99 - $9.99
$9.99
$12.99
$12.99 - $12.99
$12.99

Flat Washer - Special Purpose - 0.563 in ID - 1 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$9.99 - $9.99
$9.99
$12.99
$12.99 - $12.99
$12.99

Black Washers - 1/2 ID x 7/8 OD (10)

ARP
$9.99 - $9.99
$9.99
$9.99
$9.99 - $9.99
$9.99

Flat Washer - Special Purpose - 0.5 in ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$9.99 - $9.99
$9.99
$9.99
$9.99 - $9.99
$9.99

Black Washers - 1/2 ID x 7/8 OD (10)

ARP
$9.99 - $9.99
$9.99
$9.99
$9.99 - $9.99
$9.99

Flat Washer - Special Purpose - Chamfered - 0.5 in ID - 0.875 in OD - 0.12 in Thick - Chromoly - Black Oxide - Set of 10

$9.99 - $9.99
$9.99
$9.99
$9.99 - $9.99
$9.99