Mutual Screw & Supply

5/16-24 X 3" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (100 / Pkg.)

5/16-24 X 3" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$41.05 $63.15 In stock

5/16-24 x 3" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 5 Steel Yellow Zinc construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 100

Specifications

  • Thread Size: 5/16-24
  • Length: 3"
  • Threads Per Inch: 24
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially Threaded
  • Pack Quantity: 100
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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 (4.6 / 5 · 5 reviews)

Julian V. ★★★★★

These Grade 5 hex heads seated perfectly in my equipment’s socket drive without stripping, and the yellow zinc finish looks clean. The 3-inch length gave just enough thread engagement for my assembly job.

Matthew G. ★★★★★

The partial threading made these perfect for my shop press frame where I needed a smooth shoulder to bear against the plate. They seated cleanly with a socket and the yellow zinc finish looks exactly like the original fasteners.

Aurora ★★★★★

I needed these for a tractor linkage rebuild, and the grade 5 strength with the yellow zinc coating is holding up well so far. The partial threading made alignment a lot easier than fully threaded bolts would have.