Summit Racing SpeedCard - learn how to get 10% back up to $100

Make/Model Search
Make/Engine Search

Brands
Savings Central
Contact Us
Help Center
1-800-230-3030

Call Us
My Garage
Wish List
Order Status & Returns

Welcome
My Account

Order Status

Wish List
Savings Central
Shop by Brand
Shop Your Passion
- Shop Your Passion
- Truck / SUV
  
  Jeep®
  
  Restoration
  
  Stock Replacement
  
  Late Model Muscle
  
  Tools
  
  Gifts, Clothing, & More
  
  Circle Track
  
  Street Rod
  
  Powersports
  
  Paint & Body
  
  Marine
  
  Jr Dragster
Gift Cards
My Garage
See Our Catalogs
News & Events
Career Opportunities
Contact Us
Help Center
1-800-230-3030 1-800-230-3030
New Products
Shop by Make/Model
Sign In

Search Make/Model

Search Make/Engine

Sign In

Welcome
Account Dashboard
Profile
Order Status & Returns
Buy It Again
Wish List
Rewards Program
Gift Cards & Summit Bucks
Address Book
My Garage Settings
Email Preferences
Text Notifications
My Reviews
My Questions
Catalogs
Tax Exemption
Sign In

Summit Racing SpeedCard - learn how to get 10% back up to $100

Save With Limited-Time Deals on Exterior Parts & Accessories Today!

Filters

In Stock
- In Stock Items. Ships Today. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (38) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (44) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Brand
- Gardner-Westcott Company (32) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ARP (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Thread Size
- 5/16 in.-18 (12) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 5/16 in.-24 (12) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 3/8 in.-24 (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 3/8 in.-16 (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1/4 in.-20 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1/2 in.-13 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 7/16 in.-14 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Head Style
- Hex head (26) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Allen socket head (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Flanged 12-point (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Flanged hex (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Logo
- 350 (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Bowtie (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Mopar (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Pentastar (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Ram (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Flames (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Ford Oval (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Pontiac Arrow (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- SS (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Material
- Steel (31) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Stainless steel (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Chromoly (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 8740 chromoly (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Color
- Chrome (31) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Polished (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Black (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Grade
- Grade 8 (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ARP Stainless 300 (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ARP Custom 450 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ARP 8740 chrome moly (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Tensile Strength (psi)
- 180,000 psi (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Wrench Diameter
- 3/8 in. (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 5/16 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 9/16 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Washers Included
- No (32)
- Yes (6)
Price Range
Filter Options
- Made In USA (6)

Selected Filters

Home
Bolts and Screws
Product Results

Availability

- In Stock Items. Ships Today. (7) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- In Stock Items, Including at a Supplier. Ships In a Few Days. (38) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- All Items, Including Not In Stock (44) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Filters
Brand
- Gardner-Westcott Company (32) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ARP (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Thread Size
- 5/16 in.-18 (12) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 5/16 in.-24 (12) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 3/8 in.-24 (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 3/8 in.-16 (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1/4 in.-20 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 1/2 in.-13 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 7/16 in.-14 (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Head Style
- Hex head (26) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Allen socket head (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Flanged 12-point (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Flanged hex (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Logo
- 350 (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Bowtie (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Mopar (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Pentastar (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Ram (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Flames (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Ford Oval (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Pontiac Arrow (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- SS (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Material
- Steel (31) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Stainless steel (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Chromoly (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 8740 chromoly (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Color
- Chrome (31) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Polished (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- Black (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Grade
- Grade 8 (5) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ARP Stainless 300 (3) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ARP Custom 450 (2) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- ARP 8740 chrome moly (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Fastener Tensile Strength (psi)
- 180,000 psi (6) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Wrench Diameter
- 3/8 in. (4) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 5/16 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
- 9/16 in. (1) The options in this area are not available since you have already selected choices in the area. Use the "Get Results" button for your current choices.
Washers Included
- No (32)
- Yes (6)
Price Range
Filter Options
- Made In USA (6)

Bolts and Screws

Showing In Stock Items. Show All 44 Items.

Individual Parts

Part Groups

Results 1 - 25 of 38

ARP Stainless Steel Bolts 611-4250

Made in the USA

ARP Stainless Steel Bolts 611-4250

ARP Stainless Steel Bolts 611-4250

Bolts, 12-Point Head, Stainless 300, 1/4"-20 Thread, 4.250 UHL, 5 Pack

Part Number: ARP-611-4250

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ARP Stainless Steel Bolts 612-4250

Made in the USA

ARP Stainless Steel Bolts 612-4250

ARP Stainless Steel Bolts 612-4250

Bolts, 12-Point Head, Stainless 300, Polished, 5/16 in.-18 RH Thread, 4.250 in. UHL, Set of 5

Part Number: ARP-612-4250

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ARP Chromoly Bolts 642-4250

Made in the USA

ARP Chromoly Bolts 642-4250

ARP Chromoly Bolts 642-4250

Bolts, 12-Point Head, Custom 450, Black Oxide, 3/8 in.-16 RH Thread, 4.250 in. UHL, Set of 5

Part Number: ARP-642-4250

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ARP Stainless Steel Bolts 613-4250

Made in the USA

ARP Stainless Steel Bolts 613-4250

ARP Stainless Steel Bolts 613-4250

Bolts, 12-Point Head, Stainless 300, Polished, 3/8 in.-16 RH Thread, 4.250 in. UHL, Set of 5

Part Number: ARP-613-4250

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ARP Chromoly Bolts 627-4250

Made in the USA

ARP Chromoly Bolts 627-4250

ARP Chromoly Bolts 627-4250

Bolts, 8740 Chromoly, Black Oxide, 12-Point Head, 1/2-13 in. Thread, 4.25 in. Underhead Length, Set of 5

Part Number: ARP-627-4250

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Gardner-Westcott Bolts and Screws 12358

Gardner-Westcott Bolts and Screws 12358

Gardner-Westcott Bolts and Screws 12358

3/8-16 X 4 1/4 ALLEN SCR CH

Part Number: GAR-12358

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

ARP Chromoly Bolts 652-4250

Made in the USA

ARP Chromoly Bolts 652-4250

ARP Chromoly Bolts 652-4250

Bolts, Hex Head, Custom 450, Black Oxide, 3/8 in.-16 RH Thread, 4.250 in. UHL, Set of 5

Part Number: ARP-652-4250

Not Yet Reviewed

Estimated Ship Date: Today

...Loading

Estimated Ship Date: Today

Gardner-Westcott Bolts and Screws 11359

Gardner-Westcott Bolts and Screws 11359

Gardner-Westcott Bolts and Screws 11359

3/8-24 X 4 1/4 HEX CAP CH

Part Number: GAR-11359

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 11309

Gardner-Westcott Bolts and Screws 11309

Gardner-Westcott Bolts and Screws 11309

5/16-24 X 4 1/4 HEX CAP CH

Part Number: GAR-11309

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 17-11309

Gardner-Westcott Bolts and Screws 17-11309

Gardner-Westcott Bolts and Screws 17-11309

5/16-24 X 4 1/4 FLAME HEX CH

Part Number: GAR-17-11309

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 17-11359

Gardner-Westcott Bolts and Screws 17-11359

Gardner-Westcott Bolts and Screws 17-11359

3/8-24 X 4 1/4 FLAME HEX CH

Part Number: GAR-17-11359

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws SP-73308

Gardner-Westcott Bolts and Screws SP-73308

Gardner-Westcott Bolts and Screws SP-73308

5/16-18 X 4 1/4 A/S SS POL

Part Number: GAR-SP-73308

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 23-11308

Gardner-Westcott Bolts and Screws 23-11308

Gardner-Westcott Bolts and Screws 23-11308

5/16-18 X 4 1/4 MOPAR HEX CH

Part Number: GAR-23-11308

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 22-11309

Gardner-Westcott Bolts and Screws 22-11309

Gardner-Westcott Bolts and Screws 22-11309

5/16-24 X 4 1/4 RAM CHROME

Part Number: GAR-22-11309

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 21-11359

Gardner-Westcott Bolts and Screws 21-11359

Gardner-Westcott Bolts and Screws 21-11359

3/8-24X4 1/4 PENTASTAR HEX CH

Part Number: GAR-21-11359

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 18-11308

Gardner-Westcott Bolts and Screws 18-11308

Gardner-Westcott Bolts and Screws 18-11308

5/16-18X4 1/4 HEX "350" LOGO

Part Number: GAR-18-11308

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 12309

Gardner-Westcott Bolts and Screws 12309

Gardner-Westcott Bolts and Screws 12309

5/16-24 X 4 1/4 ALLEN SCR CH

Part Number: GAR-12309

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 22-11359

Gardner-Westcott Bolts and Screws 22-11359

Gardner-Westcott Bolts and Screws 22-11359

3/8-24 X 4 1/4 RAM CHROME

Part Number: GAR-22-11359

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 13-11308

Gardner-Westcott Bolts and Screws 13-11308

Gardner-Westcott Bolts and Screws 13-11308

5/16-18x4 1/4 "SS" LOGO HEX CH

Part Number: GAR-13-11308

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 11308

Gardner-Westcott Bolts and Screws 11308

Gardner-Westcott Bolts and Screws 11308

5/16-18 X 4 1/4 HEX CAP CH

Part Number: GAR-11308

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 21-11308

Gardner-Westcott Bolts and Screws 21-11308

Gardner-Westcott Bolts and Screws 21-11308

5/16-18X4 1/4 PENTASTAR HEX CH

Part Number: GAR-21-11308

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 23-11309

Gardner-Westcott Bolts and Screws 23-11309

Gardner-Westcott Bolts and Screws 23-11309

5/16-24 X 4 1/4 MOPAR HEX CH

Part Number: GAR-23-11309

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 21-11309

Gardner-Westcott Bolts and Screws 21-11309

Gardner-Westcott Bolts and Screws 21-11309

5/16-24X4 1/4 PENTASTAR HEX CH

Part Number: GAR-21-11309

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 12-11309

Gardner-Westcott Bolts and Screws 12-11309

Gardner-Westcott Bolts and Screws 12-11309

5/16-24x4 1/4 PONTIAC HEX CHRO

Part Number: GAR-12-11309

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

Gardner-Westcott Bolts and Screws 13-11309

Gardner-Westcott Bolts and Screws 13-11309

Gardner-Westcott Bolts and Screws 13-11309

5/16-24x4 1/4 "SS" LOGO HEX CH

Part Number: GAR-13-11309

Not Yet Reviewed

Estimated Ship Date: May 19, 2026 if ordered today

...Loading

Estimated Ship Date: May 19, 2026 if ordered today

1
2
Next

Page 1 of 2
Next

Modal Header

Contact us with questions.

Call To Order

This is a custom order part. You can order this part by Contacting Us.

Summit Racing Speedcard. Synchrony Car Care.

Summit Racing Equipment SpeedCard

Jumpstart Your Next Project!

View Details|See if you Prequalify

Stay Updated with Emails from Summit Racing

Never miss a sale on new parts, tools, and more!

= Required

First Name

Last Name

Email Address Email required

See Our Catalogs

News & Events

News & Events Home
OnAllCylinders (blog)
Calendar of Events
New Product Releases
Summit Racing News
News You Can Use
Featured Vehicles
Media Center
Sanctioning Bodies

Help

Help Center
Return Policy
Beat-A-Price Guarantee
Payment Options
Contact Us

Social

Facebook
X/Twitter
Instagram
Pinterest
YouTube
Podcast

About Summit

Corporate History
Retail Locations

My Account

Profile
Email Preferences
Order Status & Returns
Wish List
Address Book
My Reviews
My Questions
My Garage
Sign In

Career Opportunities

More

Summit Racing Credit Card
Gift Cards
Calculators & Tools
Promo Exclusions
Become an Affiliate
Summit Racing Rewards Program
Summit Racing Equipment Protection Plan

Terms of Use | Privacy and Security | Site Accessibility
Copyright 2026 by AUTOSALES, INCORPORATED
dba Summit Racing Equipment | Trademarks

Let's Build it Together^™

Modal Header