Mutual Screw & Supply

1/4-20 X 4" Carriage Bolts | 18-8 Stainless Steel (80 / Pkg.)

1/4-20 X 4" Carriage Bolts | 18-8 Stainless Steel (80 / Pkg.) - Main image
$6.1 $10 In stock

These 1/4-20 x 4" carriage bolts are manufactured from 18-8 Stainless Steel. They are well suited to structural and machinery fastening.

  • Material and finish: 18-8 Stainless Steel
  • Thread size: 1/4-20
  • Length: 4"
  • Applications: Structural and machinery fastening

Specifications

  • Product type: Carriage Bolts
  • Material: 18-8 Stainless Steel
  • Finish: Plain
  • Grade: 18/8
  • Thread size: 1/4-20
  • Length: 4"
  • Threads per inch: 20
  • Measurement type: Imperial
  • Pack quantity: 20 per package

Please note: This item is excess stock and is sold non-cancelable, non-refundable, and non-returnable. Please call us with any questions about this item before ordering.

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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)

Isabella M. ★★★★★

I’ve been using these carriage bolts for a metal shelf project, and the 18-8 stainless steel holds up nicely in my damp garage. The 1/4-20 thread size made them easy to secure with standard nuts, and the four-inch length gave me just enough reach through the wood and steel.

Richard Y. ★★★★★

These bolts were perfect for assembling my garden trellis frame; the stainless steel threads cut into the wood cleanly without stripping. Every single bolt in the 80-pack had a consistent, sharp thread, which made the whole job go faster than I expected.

Jacob ★★★★★

Installed these on a dock repair last weekend and the stainless held up perfectly in the saltwater. The 4-inch length gave just enough bite through pressure-treated lumber without needing a washer.