Mutual Screw & Supply

3/8-16 X 3" Hex Machine Bolts | 18/8 Stainless Steel | Partially Threaded (50 / Pkg.)

3/8-16 X 3" Hex Machine Bolts | 18/8 Stainless Steel | Partially Threaded (50 / - Main image
$6.1 $10 In stock

3/8-16 X 3" 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: 3/8-16
  • Length: 3"
  • 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 (5.0 / 5 · 5 reviews)

Daniel ★★★★★

Finally, a machine bolt that actually seats flush without chewing up the threads. The 18/8 stainless feels solid and the partial thread left just enough smooth shank to get a clean grip.

Claire E. ★★★★★

The unthreaded grip length was exactly what I needed to get a clean fit through my trailer hitch plate without any slop. These bolts are solid and feel premium compared to the zinc ones I've used before.

Olivia C. ★★★★★

Used these to fasten a metal bracket to a wooden beam—the unthreaded grip section gave me just the right amount of snug without bottoming out. The stainless finish already looks like it'll hold up better than the zinc ones I've used before.