Mutual Screw & Supply

5/16-18 Machine Screws | Square Drive | 18/8 Stainless Steel (100 / Pkg.)

5/16-18 Machine Screws | Square Drive | 18/8 Stainless Steel (100 / Pkg.) - Main image
$11.88 $19.8 In stock

These 5/16-18 machine screws are manufactured from 18/8 Stainless Steel, featuring a square drive. They are well suited to fastening metal parts, panels, and enclosures.

  • Material and finish: 18/8 Stainless Steel
  • Drive: Square
  • Thread size: 5/16-18
  • Applications: Fastening metal parts, panels, and enclosures

Specifications

  • Product type: Machine Screws
  • Material: 18/8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Drive type: Square
  • Thread size: 5/16-18
  • 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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When it ships

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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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Delivery costs

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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)

Robert ★★★★★

The square drive on these 5/16-18 screws makes them so much easier to seat without stripping the head, even in tight spots. They’re holding my metal enclosure panels solidly with no wobble. Really pleased with the fit for the price.

Chloe P. ★★★★★

Finally, a machine screw that doesn't strip out on me. The square drive grips perfectly even when I'm tightening into an awkward panel. They feel solid and corrosion-resistant too.

Avery ★★★★★

These square drive screws really bite into the driver without stripping like a Phillips head often does. The 18/8 stainless finish feels solid and corrosion-resistant, perfect for the outdoor equipment I was fixing up.