Mutual Screw & Supply

1/2-13 X 3-3/4" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (25 / Pkg.)

1/2-13 X 3-3/4" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$28.2 $45.49 In stock

1/2-13 x 3-3/4" 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 25

Specifications

  • Thread Size: 1/2-13
  • Length: 3-3/4"
  • Threads Per Inch: 13
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially Threaded
  • Pack Quantity: 25
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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)

Brian C. ★★★★★

I was struggling with a stripped thread on an old milling machine, and these 1/2-13 hex bolts grabbed perfectly thanks to the partial threading. The yellow zinc finish still looks clean after a few weeks in the shop.

Eli ★★★★★

Used these to bolt down a heavy press in the shop and the Grade 5 yellow zinc held up perfectly under torque without stripping. The hex head gave my socket wrench a solid grip even in a tight spot.

Emily ★★★★★

The partially threaded shaft made installation a breeze since I only needed threads at the very end for the nut. These grade 5 bolts feel solid and the yellow zinc coating looks like it will hold up well in my shop.