Mutual Screw & Supply

5/16-18 X 1" Socket Cap Screws | Low Head Hex Socket Drive | Fully Threaded | 316 Stainless Steel (100 / Pkg.)

5/16-18 X 1" Socket Cap Screws | Low Head Hex Socket Drive | Fully Threaded | - Main image
$33.71 $50.31 In stock

These 5/16-18 x 1" socket cap screws are manufactured from 316 Stainless Steel, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 316 Stainless Steel
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 5/16-18
  • Length: 1"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: 316 Stainless Steel
  • Finish: Plain
  • Grade: 316
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 5/16-18
  • Length: 1"
  • Threads per inch: 18
  • Measurement type: Inch
  • Pack quantity: 100 per package
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 5 reviews)

Benjamin ★★★★★

I needed a batch of 316 stainless screws for a marine railing repair, and these 5/16-18 x 1" socket cap screws with the hex drive were exactly the right size and corrosion resistance I was after. They threaded cleanly into the pre-tapped holes without any binding.

Robert ★★★★★

The low head profile on these 316 stainless screws is perfect for tight spaces where a standard cap wouldn't fit without rubbing. Threads cut smoothly into predrilled holes with no binding, and the hex drive grips well even when using a ball-end Allen key.

Ava V. ★★★★★

Used a handful of these to secure a jig on my milling table last week, and the low head profile let me get a wrench in where a standard cap screw wouldn't fit. The 316 stainless feels tough and the threading engaged smoothly right out of the bag.