Mutual Screw & Supply

1/2-13 X 3-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (150 / Pkg.)

1/2-13 X 3-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$57.09 $87.83 In stock

1/2-13 x 3-1/2" 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 150

Specifications

  • Thread Size: 1/2-13
  • Length: 3-1/2"
  • Threads Per Inch: 13
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially Threaded
  • Pack Quantity: 150
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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 (4.4 / 5 · 5 reviews)

Emily ★★★★★

The hex heads fit my socket perfectly, and the yellow zinc finish looks like it'll hold up well against rust in my shop. These 3-1/2" bolts were just the right length for securing a heavy bracket to a steel beam.

Kevin ★★★★★

Grabbed a box for rebuilding a press at the shop and the partially threaded design made alignment much easier than fully threaded bolts. The hex heads on these grip a wrench nicely without rounding.

Robert ★★★★☆

Needed these for mounting a new motor to a baseplate, and the partially threaded design saved me time on alignment. The yellow zinc seems evenly coated so far, though a few heads had slight tooling marks.