Mutual Screw & Supply

5/16-18 X 1-3/8" Socket Cap Screws | Hex Socket Drive | 18/8 Stainless Steel (200 / Pkg.)

5/16-18 X 1-3/8" Socket Cap Screws | Hex Socket Drive | 18/8 Stainless Steel - Main image
$36.06 $53.82 In stock

These 5/16-18 x 1-3/8" 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 size: 5/16-18
  • Length: 1-3/8"
  • 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 size: 5/16-18
  • Length: 1-3/8"
  • Threads per inch: 18
  • Measurement type: Inch
  • Pack quantity: 200 per package
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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 (4.6 / 5 · 5 reviews)

Joshua ★★★★★

The hex socket drive made installation effortless, even in tight spots on my jig setup. These 18/8 stainless screws held up perfectly under repeated use, and the 200-count pack gave me plenty of spares for future projects.

Elizabeth Y. ★★★★★

Installing these into the jig I made, the hex socket drive really keeps the driver from slipping, which I appreciate when tightening in tight spots. The 18/8 stainless steel feels solid and corrosion-free, exactly what I needed for a marine-adjacent tool fixture.

Adam W. ★★★★★

Bought these for a precision assembly job and the hex socket drive seats perfectly every time, no stripping or wobble. The 18/8 stainless finish looks clean and they came organized in the package, which made counting out what I needed a breeze.