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ARP Stainless Steel 12-Point Bolt

Manufacturer

Picture for manufacturer ARP

Part Number

21 part numbers · from $5.80
9 reviews
Sale Price

from $5.80

In Stock (10+)

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Usually delivered within 2 days

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Product Details

The ARP Stainless Steel 12-Point Bolt line gives engine builders, racers and restorers a dependable stainless steel fastener. It is also known as a 12-point stainless bolt or 12-point head bolt. ARP is a well-known maker of high-performance fasteners, and this line is built for applications where appearance, corrosion resistance and secure wrench engagement matter.

Key Features:

  • Stainless steel construction resists corrosion and keeps its finish under heat and moisture.
  • 12-point head design allows a secure wrench or socket grip. It also works well in tight spaces where access is limited.
  • Precision-machined threads help the bolt seat and clamp consistently.
  • Clean, polished look suits visible fasteners in engine bays, show builds and custom projects.
  • Made in the USA by ARP, a brand trusted in motorsports and performance building.

This line works well for dress-up hardware and general assembly on automotive, motorcycle, marine and powersports projects. Choose the variant that matches your thread and length requirements.

Select yours to see vehicle-specific options.

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21 items

Picture of ARP 613-1750 Stainless Steel 12-Point Bolts 3/8-16 x 1.750
ARP 613-1750 Stainless Steel 12-Point Bolts 3/8-16 x 1.750
3/8-16 x 1.75
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size3/8-16 x 1.75
Thread Size3/8-16 in.
Underhead Length (in)1.750 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$19.58 each
PART NUMBER: 613-1750
In Stock (10+)
Usually delivered within 2 days
Picture of ARP 611-3500 Stainless Steel 12-Point Bolt 1/4-20 x 3.500 in. UHL Picture of ARP 611-3500 Stainless Steel 12-Point Bolt 1/4-20 x 3.500 in. UHL
ARP 611-3500 Stainless Steel 12-Point Bolt 1/4-20 x 3.500 in. UHL
1/4-20 x 3.5
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size1/4-20 x 3.5
Thread Size1/4-20 in.
Underhead Length (in)3.500 in.
Washers IncludedYes
Wrench Diameter5/16 in.
Wrenching5/16
$17.76 each
PART NUMBER: 611-3500
In Stock (10+)
Usually delivered within 2 days
Picture of ARP 613-2250 Stainless Steel 12-Point Bolts 3/8-16 x 2.250 Inch
ARP 613-2250 Stainless Steel 12-Point Bolts 3/8-16 x 2.250 Inch
3/8-16 x 2.25
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size3/8-16 x 2.25
Thread Size3/8-16 in.
Underhead Length (in)2.250 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$21.01 each
PART NUMBER: 613-2250
In Stock (10+)
Usually delivered within 2 days
Picture of ARP 702-0500 Stainless Steel 12-Point Bolt Kit 10-32 x 0.500 (5-Pack)
ARP 702-0500 Stainless Steel 12-Point Bolt Kit 10-32 x 0.500 (5-Pack)
Description
$9.19
PART NUMBER: 702-0500
In Stock (10+)
Usually delivered within 2 days
Picture of ARP 3AG12502S 5/16-18 x 1.250 12-Point Bolt Stainless Steel
ARP 3AG12502S 5/16-18 x 1.250 12-Point Bolt Stainless Steel
Description
$5.80
PART NUMBER: 3AG12502S
In Stock (10+)
Usually delivered within 2 days
Picture of ARP 612-2500 Stainless Steel 12-Point Bolt Kit 5/16-18 x 2.500
ARP 612-2500 Stainless Steel 12-Point Bolt Kit 5/16-18 x 2.500
5/16-18 x 2.5
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size5/16-18 x 2.5
Thread Size5/16-18 in.
Underhead Length (in)2.500 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$19.69 each
PART NUMBER: 612-2500
In Stock (10+)
Usually delivered within 2 days
Picture of ARP 611-1250 Stainless Steel Bolt Kit 1/4-20 x 1.250 12-Point 5-Pack
ARP 611-1250 Stainless Steel Bolt Kit 1/4-20 x 1.250 12-Point 5-Pack
1/4-20 x 1.25
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size1/4-20 x 1.25
Thread Size1/4-20 in.
Underhead Length (in)1.250 in.
Washers IncludedYes
Wrench Diameter5/16 in.
Wrenching5/16
$12.09 each
PART NUMBER: 611-1250
In Stock (10+)
Usually delivered within 2 days
Picture of ARP 611-1000 Stainless Steel 12-Point Bolts 1/4-20 x 1.000" (5-Pack)
ARP 611-1000 Stainless Steel 12-Point Bolts 1/4-20 x 1.000" (5-Pack)
1/4-20 x 1
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size1/4-20 x 1
Thread Size1/4-20 in.
Underhead Length (in)1.000 in.
Washers IncludedYes
Wrench Diameter5/16 in.
Wrenching5/16
$11.67 each
PART NUMBER: 611-1000
In Stock (10+)
Usually delivered within 2 days
Picture of ARP 613-1250 Stainless Steel 12-Point Bolts 3/8-16 x 1.250" 5-Pack
ARP 613-1250 Stainless Steel 12-Point Bolts 3/8-16 x 1.250" 5-Pack
3/8-16 x 1.25
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size3/8-16 x 1.25
Thread Size3/8-16 in.
Underhead Length (in)1.250 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$15.01 each
PART NUMBER: 613-1250
In Stock (7)
Usually delivered within 2 days
Picture of ARP 613-3500 Stainless Steel 12-Point Bolt 3/8-16 x 3.500
ARP 613-3500 Stainless Steel 12-Point Bolt 3/8-16 x 3.500
3/8-16 x 3.5
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size3/8-16 x 3.5
Thread Size3/8-16 in.
Underhead Length (in)3.500 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$24.63 each
PART NUMBER: 613-3500
In Stock (7)
Usually delivered within 2 days
Picture of ARP 612-0750 Stainless Steel 12-Point Bolt 5/16-18 x 0.750 (Pack of 5) Picture of ARP 612-0750 Stainless Steel 12-Point Bolt 5/16-18 x 0.750 (Pack of 5) Picture of ARP 612-0750 Stainless Steel 12-Point Bolt 5/16-18 x 0.750 (Pack of 5) Picture of ARP 612-0750 Stainless Steel 12-Point Bolt 5/16-18 x 0.750 (Pack of 5) Picture of ARP 612-0750 Stainless Steel 12-Point Bolt 5/16-18 x 0.750 (Pack of 5)
ARP 612-0750 Stainless Steel 12-Point Bolt 5/16-18 x 0.750 (Pack of 5)
5/16-18 x 0.75
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size5/16-18 x 0.75
Thread Size5/16-18 in.
Underhead Length (in)0.750 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$12.51 each
PART NUMBER: 612-0750
In Stock (6)
Usually delivered within 2 days
Picture of ARP 613-1500 Stainless Steel 12-Point Bolts 3/8-16 x 1.500 Inch
ARP 613-1500 Stainless Steel 12-Point Bolts 3/8-16 x 1.500 Inch
3/8-16 x 1.5
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size3/8-16 x 1.5
Thread Size3/8-16 in.
Underhead Length (in)1.500 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$19.52 each
PART NUMBER: 613-1500
In Stock (6)
Usually delivered within 2 days
Picture of ARP 612-3000 Stainless Steel 12-Point Bolt 5/16-18 x 3.000 Inch
ARP 612-3000 Stainless Steel 12-Point Bolt 5/16-18 x 3.000 Inch
5/16-18 x 3
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size5/16-18 x 3
Thread Size5/16-18 in.
Underhead Length (in)3.000 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$20.61 each
PART NUMBER: 612-3000
In Stock (6)
Usually delivered within 2 days
Picture of ARP 611-4750 Stainless Steel 12-Point Bolt 1/4" x 4.750" 5-Pack Picture of ARP 611-4750 Stainless Steel 12-Point Bolt 1/4" x 4.750" 5-Pack
ARP 611-4750 Stainless Steel 12-Point Bolt 1/4" x 4.750" 5-Pack
Description
$21.57
PART NUMBER: 611-4750
In Stock (6)
Usually delivered within 2 days
Picture of ARP 7010500 Stainless Steel 12-Point Bolts 10-24 Thread 0.500 Inch Length
ARP 7010500 Stainless Steel 12-Point Bolts 10-24 Thread 0.500 Inch Length
Description
$9.43
PART NUMBER: 7010500
In Stock (6)
Usually delivered within 2 days
Picture of ARP 714-1000 Stainless Steel 12-Point Bolt Kit 7/16-20 x 1.000 Picture of ARP 714-1000 Stainless Steel 12-Point Bolt Kit 7/16-20 x 1.000
ARP 714-1000 Stainless Steel 12-Point Bolt Kit 7/16-20 x 1.000
7/16-20 x 1
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size7/16-20 x 1
Thread Size7/16-20 in. RH
Underhead Length (in)1.000 in.
Washers IncludedYes
Wrench Diameter7/16 in.
Wrenching7/16
$19.60 each
PART NUMBER: 714-1000
3 left at this price
Usually delivered within 2 days
Picture of ARP 701-1000 Stainless Steel 12-Point Bolt 10-24 x 1.000
ARP 701-1000 Stainless Steel 12-Point Bolt 10-24 x 1.000
Description
$10.47
PART NUMBER: 701-1000
3 left at this price
Usually delivered within 2 days
Picture of ARP 612-1000 Stainless Steel 12-Point Bolt 5/16-18 x 1.000 (5-Pack)
ARP 612-1000 Stainless Steel 12-Point Bolt 5/16-18 x 1.000 (5-Pack)
5/16-18 x 1
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size5/16-18 x 1
Thread Size5/16-18 in.
Underhead Length (in)1.000 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$13.35 each
PART NUMBER: 612-1000
2 left at this price
Usually delivered within 2 days
Picture of ARP 613-1000 Stainless Steel Bolt Kit 3/8-16 x 1.000 12-Point 5-Pack
ARP 613-1000 Stainless Steel Bolt Kit 3/8-16 x 1.000 12-Point 5-Pack
3/8-16 x 1
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size3/8-16 x 1
Thread Size3/8-16 in.
Underhead Length (in)1.000 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$14.34 each
PART NUMBER: 613-1000
2 left at this price
Usually delivered within 2 days
Picture of ARP 613-3000 Stainless Steel 12-Point Bolts 3/8-16 x 3.000 Inch 5-Pack
ARP 613-3000 Stainless Steel 12-Point Bolts 3/8-16 x 3.000 Inch 5-Pack
3/8-16 x 3
Description
Specifications
Fastener FinishPolished
Fastener Head Style12-Point
Fastener MaterialStainless steel
Fastener Yield Strength (psi)170,000 psi
QuantitySold as a set of 5.
Size3/8-16 x 3
Thread Size3/8-16 in.
Underhead Length (in)3.000 in.
Washers IncludedYes
Wrench Diameter3/8 in.
Wrenching3/8
$21.92 each
PART NUMBER: 613-3000
1 left at this price
Usually delivered within 2 days
Picture of ARP 702-1000 Stainless Steel 12-Point Bolt Kit 10-32 x 1.000 (5-Pack)
ARP 702-1000 Stainless Steel 12-Point Bolt Kit 10-32 x 1.000 (5-Pack)
Description
$10.20
PART NUMBER: 702-1000
1 left at this price
Usually delivered within 2 days
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Everything went well.

Good price and a fast delivery!

Five Star

It was great.

Correct part and quick delivery! Will order again in the future.

Item was finally received

Overall good

The turbo (s475sx-e) has been my best purchase this year. The order was placed at the end of the workday and Thmotorsports shipped it the very next morning, also the box arrived in magnificent condition, the turbo was picture perfect without a blemish. Thmotorsports was the most affordable out of all ten sites that were considered, with top notch shipping. I have to say Thmotorsports was the best choice for my genuine part.

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