Mutual Screw & Supply

5/16-18 X 3/4" Socket Cap Screws | Low Head Hex Socket Drive | Fully Threaded | 18/8 Stainless Steel (100 / Pkg.)

5/16-18 X 3/4" Socket Cap Screws | Low Head Hex Socket Drive | Fully Threaded | - Main image
$25.64 $37.7 In stock

These 5/16-18 x 3/4" socket cap screws are manufactured from 18/8 Stainless Steel, featuring a hex socket drive. They are well suited to machinery, tooling, jigs, and precision assemblies.

  • Material and finish: 18/8 Stainless Steel
  • Drive: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 5/16-18
  • Length: 3/4"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: 18/8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Drive type: Hex Socket Drive
  • Thread style: Fully Threaded
  • Thread size: 5/16-18
  • Length: 3/4"
  • Threads per inch: 18
  • Measurement type: Inch
  • Pack quantity: 100 per package
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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)

John ★★★★★

Used a full box assembling a custom jig and every single screw threaded smoothly with no binding. The 18/8 stainless holds up well to my shop’s humidity, and the hex socket drive made installation fast with no cam-out. Exactly what I needed for precision fixtures.

Leo Q. ★★★★★

The low head profile let me fasten the bracket flush to the frame without any clearance issues, and the hex drive grabbed perfectly with my Allen key. I used them on a metalworking jig and the 18/8 stainless feels solid, no corrosion after a couple weeks in the shop. Exactly what I needed for precis

Elizabeth H. ★★★★★

I needed a low-profile hex head for a tight clearance on a jig, and these socket cap screws fit perfectly—the hex drive grabbed cleanly without any stripping. The stainless finish feels solid, and the full threads gave me good grip.