Mutual Screw & Supply

3/8-24 X 4-1/4" Hex Machine Bolts | Steel Zinc Yellow Plated | Partially Threaded (200 / Pkg.)

3/8-24 X 4-1/4" Hex Machine Bolts | Steel Zinc Yellow Plated | Partially - Main image
$181.44 $252 In stock

3/8-24 X 4-1/4" 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: 3/8-24
  • Length: 4-1/4"
  • 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)

Sophia R. ★★★★★

The partially threaded shank made lining up the grip length exactly where I needed it a breeze. These bolts feel solid and the zinc plating looks like it’ll hold up well outdoors. Exactly what my project needed.

David V. ★★★★★

Needed some longer bolts for a steel bracket assembly and these 4-1/4” ones fit perfectly. The partial thread made alignment with the nut much easier than dealing with a fully threaded shank.

Alexander X. ★★★★★

The yellow zinc plating looks great and seems like it'll hold up well against rust. I used these for a trailer hitch repair and the partially threaded shank made alignment easy. Fast shipping too—got exactly what I needed for the job.