Mutual Screw & Supply

3/8-16 X 3" Hex Head Cap Screws | Grade 8 Steel Zinc Plated | Partially Threaded (400 / Pkg.)

3/8-16 X 3" Hex Head Cap Screws | Grade 8 Steel Zinc Plated | Partially - Main image
$100.33 $152.02 In stock

3/8-16 x 3" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 8 Steel Zinc Plated construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 400

Specifications

  • Thread Size: 3/8-16
  • Length: 3"
  • Threads Per Inch: 16
  • Material: Steel
  • Grade: Grade 8
  • Finish: Zinc Plated
  • Thread Style: Partially Threaded
  • Pack Quantity: 400
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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)

Victoria ★★★★★

I was worried the partial threading would be an issue, but these bite perfectly in my press brake rebuild. The zinc coating looks clean and should handle the shop environment well.

Emma B. ★★★★★

I swapped out some old fasteners on a trailer hitch with these and the partial threading made installation way smoother. The hex heads hold up nicely under a wrench and the zinc coating looks clean.

Emma N. ★★★★★

Needed a bulk order of high-strength bolts for a heavy equipment repair and these Grade 8 hex heads with the partial thread worked perfectly with a socket drive. The zinc plating on all 400 pieces looks consistent and clean, no rust spots in the box.