Mutual Screw & Supply

3/8-16 X 3" Hex Machine Bolts | Steel Zinc Yellow Plated | Partially Threaded (200 / Pkg.)

3/8-16 X 3" Hex Machine Bolts | Steel Zinc Yellow Plated | Partially Threaded - Main image
$21.69 $34.43 In stock

3/8-16 X 3" Hex Machine Bolts in Steel Zinc Yellow 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 yellow plating for enhanced corrosion resistance

Specifications

  • Type: Hex Machine Bolts
  • Head Style: Hex
  • Material: Steel
  • Finish: Zinc Yellow Plated
  • Thread Size: 3/8-16
  • Length: 3"
  • Thread: Partially Threaded
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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)

Evelyn E. ★★★★★

The partially threaded shank made lining up the grip length a breeze for my equipment mounting project. These bolts feel solid and the zinc coating is holding up well so far.

Olivia ★★★★★

The package arrived with all 200 bolts exactly as described, and the partially threaded shank gave me that clean grip length I needed for my frame assembly. The zinc yellow plating looks uniform across the whole batch, no flakes or bare spots anywhere. Took a few to test fit and the 3/8-16 threads c

Lucy ★★★★★

The zinc yellow plating on these bolts looks really consistent across the whole pack, and the unthreaded shank made aligning my steel brackets much easier than fully threaded ones would have. I used them for a heavy-duty shelf frame, and the threads caught cleanly without any binding.