Mutual Screw & Supply

5/16-18 X 3/4" Hex Head Cap Screws | Grade 2 Steel Yellow Zinc | Fully Threaded (1000 / Pkg.)

5/16-18 X 3/4" Hex Head Cap Screws | Grade 2 Steel Yellow Zinc | Fully Threaded - Main image
$67.58 $100.87 In stock

5/16-18 x 3/4" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 2 Steel Yellow Zinc construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 1000

Specifications

  • Thread Size: 5/16-18
  • Length: 3/4"
  • Threads Per Inch: 18
  • Material: Steel
  • Grade: Grade 2
  • Finish: Yellow Zinc CR+6
  • Thread Style: Fully Threaded
  • Pack Quantity: 1000
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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)

Miles ★★★★★

Used these to bolt down a workbench frame and the yellow zinc finish held up surprisingly well against some scraping. Fully threaded all the way, so they gripped evenly without any dead space. 1000 in the box means I won't have to reorder for a while.

Riley ★★★★★

Needed a bulk supply for assembling jigs on the shop floor and these cap screws are consistently cleanly threaded, no duds in the box. The yellow zinc coating looks good and I like that they're fully threaded for a solid bite.

Eva W. ★★★★★

Used these to secure some heavy-duty shelving brackets in my workshop. The yellow zinc coating looks clean and the hex heads held up nicely under a socket wrench without stripping. A solid value for a thousand-piece box.