Mutual Screw & Supply

1/4-20 X 4-1/2" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (200 / Pkg.)

1/4-20 X 4-1/2" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (200 - Main image
$7 $10 In stock

1/4-20 X 4-1/2" 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: 1/4-20
  • Length: 4-1/2"
  • 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 (5.0 / 5 · 5 reviews)

Aurora Y. ★★★★★

The zinc plating on these bolts is nice and even, no flaking or rough spots. Needed a few for a trailer hitch repair and the unthreaded grip section lined up perfectly with the bracket holes.

Mia P. ★★★★★

The partially threaded shank made it easy to get a tight fit without the threads binding in the middle of the connection. These bolts are solid and the zinc coating has a nice, even finish. Exactly what I needed for a sturdy shelf bracket project.

Hannah R. ★★★★★

The zinc plating on these bolts is smooth and even, which made them easy to grip with a wrench right out of the box. The partially threaded shank gave me the exact grip length I needed for a snug fit on my steel frame project, and all 200 arrived without a single bent one.