Mutual Screw & Supply

3/8-16 X 3-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (300 / Pkg.)

3/8-16 X 3-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$71.52 $108.36 In stock

3/8-16 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 300

Specifications

  • Thread Size: 3/8-16
  • Length: 3-1/2"
  • Threads Per Inch: 16
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially Threaded
  • Pack Quantity: 300
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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)

Amelia N. ★★★★★

Had to rebuild a piece of farm equipment and these hex heads wrenched in perfectly without stripping. The partial threading made alignment much easier on the thicker brackets. Solid batch of 300 for the price.

Sofia ★★★★★

Bought these for a trailer hitch project and the partial threading made a big difference in bite depth. The yellow zinc coating looks great and the hex heads fit my socket without slipping.

George L. ★★★★★

Used a full box rebuilding a press brake die holder and every single bolt seated cleanly without binding. The yellow zinc coating looks consistent and the partial threads made alignment easier than fully threaded ones.