Mutual Screw & Supply

1/2-13 X 2-1/2" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (100 / Pkg.)

1/2-13 X 2-1/2" Hex Machine Bolts | Steel Zinc Plated | Partially Threaded (100 - Main image
$29.63 $44.23 In stock

1/2-13 X 2-1/2" 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: 1/2-13
  • Length: 2-1/2"
  • Thread: Partially Threaded
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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)

Claire W. ★★★★★

The hex heads grabbed my socket perfectly, and the zinc finish looks clean against the steel plate I'm bolting down. I was glad to see the grip length matched the 1/2" material thickness exactly.

Riley K. ★★★★★

The partially threaded shank made alignment so much easier when fastening steel brackets together. The zinc plating looks clean and uniform across all 100 bolts, which is exactly what I needed for outdoor equipment.

Andrew ★★★★★

I needed bolts with a clean, unthreaded section for a tight assembly, and these 2.5-inch ones fit perfectly through the clearance hole. The partial threading gives just the right grip length, and the plating seems solid with no rough edges.