• Dorman Autograde Grade 5 Hex Head Cap Screw 5/16-18 x 1-1/2 Inch 100 Pack 170-115
  • Dorman Autograde Grade 5 Hex Head Cap Screw 5/16-18 x 1-1/2 Inch 100 Pack 170-115
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Dorman - Autograde

Dorman Autograde Grade 5 Hex Head Cap Screw 5/16-18 x 1-1/2 Inch 100 Pack 170-115

Dorman Autograde Grade 5 Hex Head Cap Screw 5/16-18 x 1-1/2 Inch 100 Pack 170-115

$41.33
$41.33
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Shipping calculated at checkout.

39 in stock

Shipping & returns

Shipping details

In-stock orders are processed within 48 hours; transit time is additional.

International orders include export processing and customs clearance. Duties, taxes and brokerage are extra; final freight charges may change after remeasurement.

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Returns

Need help with a return? Request authorization within 30 days of delivery for eligible unused, uninstalled items. See details for exclusions and applicable fees.

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Return details & how to start

Request return authorization (RMA) within 30 days of delivery for eligible items. Keep items unused and uninstalled, with original packaging and accessories. Electronics, liquids, special orders and other categories are excluded.

Email sales@frsport.com with RETURN and your order number in the subject to request an RMA. Please wait for return authorization before sending your item back.

Wrong part/size or change of mind: a 20% return processing fee applies, plus applicable shipping costs.

Original shipping is non-refundable. For orders shipped free, the actual outbound shipping cost is deducted from the refund. Return shipping is prepaid by the customer.

After payment capture, cancellations and refunds generally incur a 5% processing fee, except for our error, confirmed defects or confirmed carrier loss. The 5% and 20% fees do not stack; only the greater applicable fee applies. Store credit waives the 5% fee, but applicable return fees remain.

Missing, incorrect or transit-damaged items: report within 3 business days of receipt with photos of the product and packaging.

For defective items, contact us for help with the manufacturer's warranty process. The manufacturer decides the claim.

Specifications

Product details shared across all variants.

Product type
Bolt
Category
Motor Vehicle Parts
Item condition
New
Manufacturer type
Aftermarket
Shipping weight
4.0 lb
Barcode
30019495161159

Billable shipping weight; may include dimensional weight.

Grade 5 hex head cap screws sized 5/16-18 x 1-1/2 inch used to replace missing or damaged fasteners in automotive repairs and general mechanical applications.

Built to meet the manufacturer's design intent for reliable service, these bolts are manufactured using durable materials and corrosion-tested to ensure required strength and longevity. They are engineered as direct-fit replacements designed to match OE form, fit, and function.

Key Features

  • Hex head design allows for easy installation with standard wrenches or sockets
  • Grade 5 classification provides medium tensile strength for general automotive use
  • Thread specification is 5/16-18 with a length of 1-1/2 inches
  • Corrosion-tested to withstand harsh underhood and chassis environments
  • Bulk pack contains 100 pieces for high-volume repair needs
  • Manufactured and validated by professional engineers in the United States

Benefits

  • Restores structural integrity to components secured by original fasteners
  • Reduces the risk of repeat repairs caused by inferior or worn hardware
  • Ensures a smoother installation process with precise threading and fit
  • Provides dependable performance under daily driving demands
  • Offers cost-effective solution for shops needing bulk replacement bolts
  • Delivers peace of mind with trustworthy quality backed by Dorman

Application

Ideal for professional mechanics and DIY enthusiasts performing engine work, suspension repairs, or bracket reinstallation where specific Grade 5 hardware is required. Suitable for any application demanding a 5/16-18 bolt of 1-1/2 inch length.

Fitment Notes

  • Universal automotive fastener not restricted to specific year, make, or model
  • Verify thread pitch and length requirements against your vehicle's service manual before purchase

Why Choose Dorman?

  • Choosing Dorman aftermarket replacement parts is a smart way to restore your vehicle with confidence, thanks to a strong focus on fit, durability, and dependable performance. Dorman parts are engineered as direct-fit replacements designed to match OE form, fit, and function, helping ensure a smoother installation and reliable results. Built with quality materials and validated through testing, they're made to stand up to daily driving demands and help reduce the risk of repeat repairs. For a long-lasting fix you can trust, Dorman delivers proven aftermarket solutions that keep your vehicle operating the way it should.

What's in the Box

  • 100 Piece bulk pack of Grade 5 Hex Head Cap Screws

Item Dimensions

  • Package measures 5.5 inches by 4.0 inches by 2.3 inches and weighs 4.0 pounds
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Vehicle fitment