Mutual Screw & Supply

5/16-24 X 5/8" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Fully Threaded (200 / Pkg.)

5/16-24 X 5/8" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Fully Threaded - Main image
$27.73 $39.06 In stock

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

  • Grade 5 Steel Yellow Zinc construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 200

Specifications

  • Thread Size: 5/16-24
  • Length: 5/8"
  • Threads Per Inch: 24
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Fully Threaded
  • Pack Quantity: 200
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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)

Ella ★★★★★

The yellow zinc finish on these 5/16-24 hex head cap screws looks great and seems durable. I used a socket on them for a machinery frame repair, and they seated perfectly without stripping.

Thomas D. ★★★★★

The 5/16-24 threads cut cleanly into my steel brackets without stripping, and the yellow zinc coating feels durable enough to resist rust in my workshop. The hex head grabbed perfectly with a socket, making installation quick and consistent across all 200 pieces.

Joshua ★★★★★

I needed a full box of these for a bracket repair on my trailer, and the Grade 5 steel feels plenty tough for the job. The threads are clean and catch easily with a socket, which saved me time.