Mutual Screw & Supply

3/8-16 X 1-1/2" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (100 / Pkg.)

3/8-16 X 1-1/2" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (100 - Main image
$9.44 $15.48 In stock

3/8-16 X 1-1/2" Hex Machine Bolts in Steel Zinc Plated. A hex head machine bolt with a partially threaded shank per ASME B18.2.1, providing an unthreaded grip length for bolted connections through clearance holes.

  • Partially threaded shank for a smooth bearing surface in the shear plane of bolted joints
  • Hex head for wrench-driven, high-torque installation
  • Zinc plating for everyday corrosion resistance

Specifications

  • Type: Hex Machine Bolts
  • Head Style: Hex
  • Material: Steel
  • Finish: Zinc Plated
  • Thread Size: 3/8-16
  • Length: 1-1/2"
  • Thread: Partially Threaded
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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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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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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)

Carter M. ★★★★★

The unthreaded grip length on these made alignment much easier when I was bolting a heavy steel bracket to a frame. They feel solid and the zinc coating seems durable so far.

Adam Z. ★★★★★

I needed a solid grip length for a trailer hitch bracket, and these partially threaded bolts gave me exactly that without having to stack washers. The zinc coating looks clean and should hold up well in my workshop environment.

Sophia D. ★★★★★

The hex heads fit my socket perfectly, and the zinc plating looks clean and uniform across all 100 bolts. I used them for a small trailer hitch repair, and the unthreaded grip section made alignment much easier than dealing with fully threaded bolts.