Mutual Screw & Supply

5/16-18 X 3/8" Hex Machine Bolts | 18/8 Stainless Steel | Fully Threaded (50 / Pkg.)

5/16-18 X 3/8" Hex Machine Bolts | 18/8 Stainless Steel | Fully Threaded (50 / - Main image
$6.4 $10 In stock

5/16-18 X 3/8" Hex Machine Bolts in 18/8 Stainless Steel. A fully threaded hex head machine bolt for use where thread engagement is needed along the entire shank, in metal, wood, and assembled components.

  • Fully threaded for full-length engagement
  • 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: 3/8"
  • Thread: Fully 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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Delivery costs

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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Returning an item

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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)

Kevin ★★★★★

Grabbed a pack for assembling a small jig and the 18/8 stainless feels solid—no burrs on the threads. These fully threaded bolts made it easy to get the exact depth I needed in the metal bracket.

Robert U. ★★★★★

I was pleasantly surprised at how cleanly these bolts thread into tapped holes—no galling at all. The 18/8 stainless feels solid and should hold up well outdoors. Exactly what I needed for a quick bracket repair.

Charlotte ★★★★★

The fully threaded shank on these little bolts gives great bite even in thinner materials. I used them for a metal shelf bracket and they held tight without any stripping. Solid pack for the price.