Mutual Screw & Supply

5/16-18 X 2-1/4" Carriage Bolts | Steel Zinc Plated (100 / Pkg.)

5/16-18 X 2-1/4" Carriage Bolts | Steel Zinc Plated (100 / Pkg.) - Main image
$5.67 $8.59 In stock

These 5/16-18 x 2-1/4" carriage bolts are manufactured from Steel with a zinc plated finish. They are well suited to structural and machinery fastening.

  • Material and finish: Steel, Zinc Plated finish
  • Thread size: 5/16-18
  • Length: 2-1/4"
  • Applications: Structural and machinery fastening

Specifications

  • Product type: Carriage Bolts
  • Material: Steel
  • Finish: Zinc Plated
  • Thread size: 5/16-18
  • Length: 2-1/4"
  • Threads per inch: 18
  • Measurement type: Imperial
  • Pack quantity: 100 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 (4.6 / 5 · 5 reviews)

Henry ★★★★★

The rounded head and square neck on these bolts grabbed perfectly in the wood, no spinning while I tightened the nut. They went into pre-drilled holes on my trailer frame without any struggle.

Madison ★★★★★

Used these to build a little deck bench and the square necks held perfectly in the wood without spinning. The zinc finish feels smooth and should hold up fine outdoors with some weatherproofing.

Julian S. ★★★★★

I needed some heavy-duty fasteners for a storage rack I was building, and the zinc coating on these bolts looks like it will hold up well against rust. The square neck under the head grabbed the wood perfectly, keeping them from spinning while I tightened the nut.