Mutual Screw & Supply

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

5/16-18 X 3" Socket Cap Screws | Hex Socket Drive | 18/8 Stainless Steel (100 / - Main image
$14.85 $19.8 In stock

These 5/16-18 x 3" 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
  • Thread size: 5/16-18
  • Length: 3"
  • 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
  • Thread size: 5/16-18
  • Length: 3"
  • Threads per inch: 18
  • Measurement type: Imperial
  • Pack quantity: 10 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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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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Returning an item

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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)

Avery M. ★★★★★

Installed these on a jig for a quick-change tooling setup and the 18/8 stainless held up perfectly against some light coolant splashes without any sign of rust. The three-inch length was exactly what I needed for stacking a couple plates together.

Richard M. ★★★★★

The threads on these 5/16-18 x 3" cap screws are cut clean and the hex socket drive seats the wrench perfectly. I used them for a jig setup and the 18/8 stainless held up without any burrs or sticking.

Daniel ★★★★★

I was a little worried about the hex socket stripping during installation, but the drive held perfectly firm with my Allen wrench. The 18/8 stainless steel feels solid and corrosion-resistant, exactly what I needed for a jig assembly.