Mutual Screw & Supply

1/4-20 X 3-3/4" Hex Machine Bolts | 18/8 Stainless Steel | Partially Threaded (100 / Pkg.)

1/4-20 X 3-3/4" Hex Machine Bolts | 18/8 Stainless Steel | Partially Threaded - Main image
$12.18 $19.33 In stock

1/4-20 X 3-3/4" 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: 1/4-20
  • Length: 3-3/4"
  • 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 (4.6 / 5 · 5 reviews)

Lily V. ★★★★★

The partially threaded shank on these made aligning the bolt through the metal bracket and frame much easier. Used a dozen of them to secure a heavy-duty workbench leg, and the stainless steel finish looks clean with zero rust so far.

Nicholas ★★★★★

I needed these for a small trailer repair, and the stainless steel construction is holding up perfectly against the weather. The hex heads are easy to grip with a standard wrench.

Amelia Y. ★★★★★

Finally, some bolts that actually have a usable unthreaded grip length like they're supposed to. I used these to fasten a steel bracket to a wooden beam and the fit was perfect. The 18/8 stainless seems solid and they came well-packed without any damage.