Mutual Screw & Supply

1/4-20 X 3-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (100 / Pkg.)

1/4-20 X 3-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$30.07 $42.96 In stock

1/4-20 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 100

Specifications

  • Thread Size: 1/4-20
  • Length: 3-1/2"
  • Threads Per Inch: 20
  • 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 (4.8 / 5 · 5 reviews)

Daniel ★★★★★

The partially threaded design made alignment a breeze when I was bolting down a motor mount, no fighting with the threads. These Grade 5 bolts feel plenty sturdy for the industrial rack I put together, and the yellow zinc coating has held up nicely so far.

Nicholas ★★★★★

The hex head grabbed my socket wrench perfectly without any stripping, and the yellow zinc finish looks clean even after a week on my jig. Threads cut into the steel plate smoothly, and the partial threading gave me that snug hold where I needed it.

Samuel L. ★★★★★

The partially threaded section made aligning everything in the equipment frame a breeze, and the yellow zinc finish looks sharp against the steel. These hex heads grabbed onto my socket wrench cleanly, no stripping or rounding off even under some serious torque.