Mutual Screw & Supply

1/2-13 X 2-1/2" Hex Machine Bolts | Steel Hot-Dip Galvanized | Partially Threaded (100 / Pkg.)

1/2-13 X 2-1/2" Hex Machine Bolts | Steel Hot-Dip Galvanized | Partially - Main image
$20.4 $30 In stock

1/2-13 X 2-1/2" Hex Machine Bolts in Steel Hot-Dip Galvanized. 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
  • Hot-dip galvanized for heavy-duty outdoor corrosion resistance

Specifications

  • Type: Hex Machine Bolts
  • Head Style: Hex
  • Material: Steel
  • Finish: Hot-Dip Galvanized
  • Thread Size: 1/2-13
  • Length: 2-1/2"
  • 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)

Daniel ★★★★★

The partially threaded shank made alignment a breeze when I needed a precise grip length for bolting through some thick steel brackets. These tightened down firmly without any sign of the galvanized coating flaking off.

Samuel ★★★★★

The partial thread gives just enough grip length for my trailer hitch assembly, and the galvanized coating looks consistent across all 100 bolts.

Edward V. ★★★★★

The hot-dip galvanizing on these bolts is thick and even, so they should hold up well outdoors. I used them to fasten a gate hinge, and the partially threaded shank made alignment much easier. Exactly what I needed for a solid connection.