Mutual Screw & Supply

5/16-18 X 5/8" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel (200 / Pkg.)

5/16-18 X 5/8" Socket Cap Screws | Flat Head Hex Socket Drive | Alloy Steel - Main image
$10.49 $16.39 In stock

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

  • Material and finish: Alloy Steel
  • Drive: Hex Socket
  • Head style: Flat
  • Thread size: 5/16-18
  • Length: 5/8"
  • Applications: Machinery, tooling, jigs, and precision assemblies

Specifications

  • Product type: Socket Cap Screws
  • Material: Alloy Steel
  • Finish: Plain
  • Head style: Flat
  • Drive type: Hex Socket
  • Thread size: 5/16-18
  • Length: 5/8"
  • 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 (4.6 / 5 · 5 reviews)

Kevin O. ★★★★★

I needed a batch of flat head screws for a jig I was building, and these alloy steel ones fit the bill perfectly—the hex socket drive seated firmly without any stripping.

Abigail ★★★★★

The hex socket drive gripped perfectly with my Allen key, making assembly on my drill press jig a breeze. Every screw threaded smoothly without any skipping or binding. Exactly what I needed for precise tooling work.

Ava ★★★★★

Used a full pack of these for a custom jig build and the flat head design sat perfectly flush in the counterbore. The hex socket drive held up without stripping even with my impact driver on a few tight spots.