Mutual Screw & Supply

5/16-18 X 1-1/2" Hex Machine Bolts | 18/8 Stainless Steel | Partially Threaded (50 / Pkg.)

5/16-18 X 1-1/2" Hex Machine Bolts | 18/8 Stainless Steel | Partially Threaded - Main image
$6.6 $10 In stock

5/16-18 X 1-1/2" Hex Machine Bolts in 18/8 Stainless Steel. 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
  • Stainless steel for superior corrosion resistance

Specifications

  • Type: Hex Machine Bolts
  • Head Style: Hex
  • Material: 18/8 Stainless Steel
  • Finish: Plain
  • Thread Size: 5/16-18
  • Length: 1-1/2"
  • 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 (4.4 / 5 · 5 reviews)

Ella E. ★★★★★

These bolts fit perfectly in my trailer hitch mount, and the stainless steel is a huge upgrade from the plated ones I had before. The unthreaded grip section made alignment much easier during assembly.

Christopher ★★★★★

These bolts are perfect for my trailer hitch build — the 18/8 stainless really resists corrosion. The partially threaded shank made alignment a breeze compared to fully threaded ones, and the hex head grabbed nicely with a socket.

Steven ★★★★☆

Used a handful to secure a metal bracket to a wooden post; the partially threaded shank gave a nice tight fit without wobble. They're stainless, so no worries about rust in the weather. Only minor thing is the package came with one bolt that had a slightly off-thread.