Mutual Screw & Supply

3/8-16 X 1-1/4" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (100 / Pkg.)

3/8-16 X 1-1/4" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (100 - Main image
$9.91 $16.24 In stock

3/8-16 X 1-1/4" 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: 1-1/4"
  • 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)

William ★★★★★

The partially threaded shank made alignment much easier when I was bolting through some steel brackets, and all 100 bolts had clean threads without any burrs.

Emma Y. ★★★★★

The zinc plating looks clean and even right out of the box, no flaking or rough edges on the threads. I used most of the bag on a trailer hitch bracket and the unthreaded grip section sat flush against the steel, which made torquing them down feel solid.

Penelope ★★★★★

The partially threaded shank is exactly what I needed for a snug fit through my steel brackets without the threads chewing up the holes. All 100 bolts came out of the box straight and the zinc coating looks durable enough for my garage shelving project.