Mutual Screw & Supply

5/16-24 X 5/8" Hex Head Cap Screws | Grade 8 Steel Yellow Zinc | Fully Threaded (1800 / Pkg.)

5/16-24 X 5/8" Hex Head Cap Screws | Grade 8 Steel Yellow Zinc | Fully Threaded - Main image
$113.81 $189.69 In stock

5/16-24 x 5/8" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 8 Steel Yellow Zinc construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 1800

Specifications

  • Thread Size: 5/16-24
  • Length: 5/8"
  • Threads Per Inch: 24
  • Material: Steel
  • Grade: Grade 8
  • Finish: Yellow Zinc CR+6
  • Thread Style: Fully Threaded
  • Pack Quantity: 1800
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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)

Owen N. ★★★★★

The hex heads on these Grade 8 bolts are sharp and uniform, making them easy to grip with a socket. I used a full box assembling a heavy-duty jig, and every single screw threaded in smoothly without any binding. A solid bulk buy for industrial work.

Emma S. ★★★★★

These threads were perfectly clean and the hex heads drove smoothly with a socket; no stripping or galling. Having them fully threaded made alignment a breeze on my frame jig. Exactly what I needed for a critical repair.

Christopher Y. ★★★★★

I needed a bulk supply of high-strength fasteners for a heavy equipment repair, and these Grade 8 screws came through. The yellow zinc coating looks uniform and the hex heads bite nicely with a socket wrench.