Mutual Screw & Supply

5/16-18 X 1" Socket Cap Screws | Low Head Hex Socket Drive | Fully Threaded | 18/8 Stainless Steel (100 / Pkg.)

5/16-18 X 1" Socket Cap Screws | Low Head Hex Socket Drive | Fully Threaded | - Main image
$31.11 $45.09 In stock

These 5/16-18 x 1" 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: 1"
  • 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: 1"
  • Threads per inch: 18
  • Measurement type: Inch
  • Pack quantity: 100 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 (3.8 / 5 · 5 reviews)

Elizabeth P. ★★★★★

Used these on a custom jig build and the 18/8 stainless finish handled the shop environment without a hint of corrosion. The hex socket drive grabbed cleanly every time, no stripped heads even with a bit of torque. Just wish they came in smaller quantities, but a hundred will get used eventually.

Edward O. ★★★★★

The low head profile on these is perfect for tight spots on my tooling fixtures where a standard cap screw would never fit. Threads are clean and they seat beautifully — all 100 in the pack are true to size.

Olivia T. ★★★☆☆

The hex socket drive grips well with a standard Allen key, and the low head profile is handy for tight spots on my jigs. They’re solid 18/8 stainless, but the threads felt a bit gritty going into pre-tapped holes, so I’d give them a pass for anything precision.