Mutual Screw & Supply

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

5/16-18 X 3" Socket Cap Screws | Hex Socket Drive | Alloy Steel (200 / Pkg.) - Main image
$17.59 $24.43 In stock

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

  • Material and finish: Alloy 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: Alloy Steel
  • Finish: Plain
  • Drive type: Hex Socket
  • Thread size: 5/16-18
  • Length: 3"
  • Threads per inch: 18
  • Measurement type: Imperial
  • Pack quantity: 100 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 (5.0 / 5 · 5 reviews)

Jacob R. ★★★★★

Just swapped out the old stainless bolts on my milling machine table for these, and the hex socket drive makes tightening them in tight spots effortless. The 200-count pack means I’ve got spares for future projects, and the alloy steel feels solid and durable.

Joshua ★★★★★

Installed these in a jig I’m building and the alloy steel feels solid enough for repeated tightening. The hex socket drive grabbed perfectly with my Allen key, no stripping issues. Exactly the length I needed for this assembly.

Hannah ★★★★★

The hex socket drive seated perfectly on my driver with zero wobble, and the alloy steel feels rock solid when I torque them down. I grabbed these for a fixture setup and the 3" length gave me just the reach I needed.