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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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3/8-24 12pt. Nut - Black Finish

ARP
$3.39 - $3.39
$3.39
$3.39
$3.39 - $3.39
$3.39
100 in stock

Nut - 3/8-24 in Thread - 7/16 in 12 point Head - Chromoly - Black Oxide - Each

$3.39 - $3.39
$3.39
$3.39
$3.39 - $3.39
$3.39

3/8 to 5/16-24 x 1.750 Stepped Header Stud

ARP
$10.49 - $10.49
$10.49
$10.49
$10.49 - $10.49
$10.49
87 in stock

Stud - 3/8-16 and 5/16-24 in Thread - 1.75 in Long - Stepped - Chromoly - Black Oxide - Universal - Each

$10.49 - $10.49
$10.49
$10.49
$10.49 - $10.49
$10.49

3/8 Stud - 5.150 Broached

ARP
$8.49 - $8.49
$8.49
$8.49
$8.49 - $8.49
$8.49
34 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 5.15 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$8.49 - $8.49
$8.49
$8.49
$8.49 - $8.49
$8.49

3/8 Stud - 4.600 Broached

ARP
$7.61 - $7.61
$7.61
$7.61
$7.61 - $7.61
$7.61
22 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 4.6 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$7.61 - $7.61
$7.61
$7.61
$7.61 - $7.61
$7.61

3/8 Stud - 3.750 Long Broached

ARP
$7.15 - $7.15
$7.15
$7.15
$7.15 - $7.15
$7.15
71 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 3.75 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$7.15 - $7.15
$7.15
$7.15
$7.15 - $7.15
$7.15

3/8 Stud - 3.500 Broached

ARP
$6.97 - $6.97
$6.97
$6.97
$6.97 - $6.97
$6.97
100 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 3.5 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$6.97 - $6.97
$6.97
$6.97
$6.97 - $6.97
$6.97

3/8 Stud - 3.250 Broached

ARP
$6.58 - $6.58
$6.58
$6.58
$6.58 - $6.58
$6.58
77 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 3.25 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$6.58 - $6.58
$6.58
$6.58
$6.58 - $6.58
$6.58

3/8 Stud - 3.050 Long Broached

ARP
$5.59 - $5.59
$5.59
$5.59
$5.59 - $5.59
$5.59
69 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 3.05 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$5.59 - $5.59
$5.59
$5.59
$5.59 - $5.59
$5.59

3/8 Stud - 3.000 Broached

ARP
$6.39 - $6.39
$6.39
$6.39
$6.39 - $6.39
$6.39
56 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 3 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$6.39 - $6.39
$6.39
$6.39
$6.39 - $6.39
$6.39

3/8 Stud - 2.750 Broached

ARP
$6.49 - $6.49
$6.49
$6.49
$6.49 - $6.49
$6.49
100 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 2.75 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$6.49 - $6.49
$6.49
$6.49
$6.49 - $6.49
$6.49

3/8 Stud - 2.500 Broached

ARP
$6.09 - $6.09
$6.09
$6.09
$6.09 - $6.09
$6.09
100 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 2.5 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$6.09 - $6.09
$6.09
$6.09
$6.09 - $6.09
$6.09

3/8 Stud - 2.310 Long Broached

ARP
$6.00 - $6.00
$6.00
$6.00
$6.00 - $6.00
$6.00
100 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 2.31 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$6.00 - $6.00
$6.00
$6.00
$6.00 - $6.00
$6.00

3/8 Stud - 2.160 Long Broached

ARP
$10.49 - $10.49
$10.49
$10.49
$10.49 - $10.49
$10.49
61 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 2.16 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$10.49 - $10.49
$10.49
$10.49
$10.49 - $10.49
$10.49

3/8-16 x 2.000 Stud - Exhaust Header

ARP
$10.49 - $10.49
$10.49
$10.49
$10.49 - $10.49
$10.49
81 in stock

Header Stud - 3/8 in Diameter - 2 in Long - Chromoly - Black Oxide - Universal - Each

$10.49 - $10.49
$10.49
$10.49
$10.49 - $10.49
$10.49

3/8-16 x 1.670 Stud - Distributor Ret. Bracket

ARP
$5.34 - $5.34
$5.34
$5.34
$5.34 - $5.34
$5.34
100 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 1.67 in Long - Chromoly - Black Oxide - Universal - Each

$5.34 - $5.34
$5.34
$5.34
$5.34 - $5.34
$5.34

3/8-16 Stud 1.500 Long Broached

ARP
$4.49 - $4.49
$4.49
$4.49
$4.49 - $4.49
$4.49
29 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 1.5 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$4.49 - $4.49
$4.49
$4.49
$4.49 - $4.49
$4.49

3/8-16 Stud 1.250 Long Broached

ARP
$4.39 - $4.39
$4.39
$4.39
$4.39 - $4.39
$4.39
78 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 1.25 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$4.39 - $4.39
$4.39
$4.39
$4.39 - $4.39
$4.39

3/8-16 Stud 1.000 Long Broached

ARP
$4.09 - $4.09
$4.09
$4.09
$4.09 - $4.09
$4.09
32 in stock

Stud - 3/8-16 and 3/8-24 in Thread - 1 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$4.09 - $4.09
$4.09
$4.09
$4.09 - $4.09
$4.09
Sold out

S/S Flat Washer - 5/16 ID x .657 OD(1)

ARP
$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99
Out of stock

Flat Washer - General Purpose - Chamfered - 0.313 in ID - 0.657 in OD - 0.063 in Thick - Steel - Black Oxide - Each

$1.99 - $1.99
$1.99
$1.99
$1.99 - $1.99
$1.99
Sold out

5/16-24 Large Flange Header Nut (1pk)

ARP
$3.99 - $3.99
$3.99
$3.99
$3.99 - $3.99
$3.99
32 in stock

Nut - 5/16-24 in Thread - 3/8 in 12 Point Head - Chromoly - Black Oxide - Each

$3.99 - $3.99
$3.99
$3.99
$3.99 - $3.99
$3.99

5/16-18 Stud 3.750 OAL Short Broached

ARP
$7.75 - $7.75
$7.75
$7.75
$7.75 - $7.75
$7.75
Only 5 left!

Stud - 5/16-24 and 5/16-18 in Thread - 3.75 in Long - Broached - Chromoly - Black Oxide - Universal - Each

$7.75 - $7.75
$7.75
$7.75
$7.75 - $7.75
$7.75

5/16-18 Stud 2.850 OAL w/Top Guide Nose

ARP
$5.41 - $5.41
$5.41
$5.41
$5.41 - $5.41
$5.41
8 in stock

Stud - 5/16-24 and 5/16-18 in Thread - 2.85 in Long - Chromoly - Black Oxide - Universal - Each

$5.41 - $5.41
$5.41
$5.41
$5.41 - $5.41
$5.41
Sold out

5/16-18 Stud 2.225 OAL w/Top Guide Nose

ARP
$5.20 - $5.20
$5.20
$5.20
$5.20 - $5.20
$5.20
Out of stock

Stud - 5/16-24 and 5/16-18 in Thread - 2.225 in Long - Chromoly - Black Oxide - Universal - Each

$5.20 - $5.20
$5.20
$5.20
$5.20 - $5.20
$5.20
Sold out

5/16-18 x 1.625 Stud

ARP
$5.00 - $5.00
$5.00
$5.00
$5.00 - $5.00
$5.00
29 in stock

Stud - 5/16-24 and 5/16-18 in Thread - 1.625 in Long - Chromoly - Black Oxide - Universal - Each

$5.00 - $5.00
$5.00
$5.00
$5.00 - $5.00
$5.00