Mutual Screw & Supply

5/16-18 X 1-1/4" Machine Screws | Flat 82° Head Phillips Drive | Steel Trivalent Zinc (200 / Pkg.)

5/16-18 X 1-1/4" Machine Screws | Flat 82° Head Phillips Drive | Steel - Main image
$10.87 $15.98 In stock

These 5/16-18 x 1-1/4" machine screws are manufactured from Steel with a trivalent zinc finish, featuring a phillips drive and a flat 82 head. They are well suited to fastening metal parts, panels, and enclosures.

  • Material and finish: Steel, Trivalent Zinc finish
  • Drive: Phillips
  • Head style: Flat 82
  • Thread size: 5/16-18
  • Length: 1-1/4"
  • Applications: Fastening metal parts, panels, and enclosures

Specifications

  • Product type: Machine Screws
  • Material: Steel
  • Finish: Trivalent Zinc
  • Head style: Flat 82
  • Drive type: Phillips
  • Thread size: 5/16-18
  • Length: 1-1/4"
  • 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.

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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 (4.6 / 5 · 5 reviews)

Ava R. ★★★★★

The 82° flat heads sit perfectly flush in the counterbores I drilled, and the trivalent zinc finish looks clean without any weird tint. Threading them into steel brackets was smooth, no stripped heads or binding even after a full day of work.

Evelyn T. ★★★★★

I was worried the Phillips drive might strip, but these 5/16-18 machine screws seated perfectly with a standard bit. The 1-1/4 inch length worked great for joining some metal brackets.

Kevin ★★★★★

The trivalent zinc finish on these screws resisted scratching when I drove them into a steel bracket, which is a nice upgrade from standard zinc. They threaded smoothly into a pre-tapped hole without any binding, and the 200-count box will last me through several projects.