Mutual Screw & Supply

1-1/4-7 X 3-1/2" Heavy Hex Cap Screws | 18/8 Stainless Steel | Fully Threaded (2 / Pkg.)

1-1/4-7 X 3-1/2" Heavy Hex Cap Screws | 18/8 Stainless Steel | Fully Threaded - Main image
$32.95 $44.53 In stock

18/8 Stainless Steel hex head cap screws, fully threaded, size 1-1/4-7 x 3-1/2". A dependable fastener for machinery, equipment assembly, and general industrial use.

  • 18/8 Stainless Steel construction
  • fully threaded configuration
  • Hex head for wrench or socket drive
  • For machinery, equipment, and general-purpose fastening

Specifications

  • Thread Size: 1-1/4-7
  • Length: 3-1/2"
  • Threads Per Inch: 7
  • Material: 18/8 Stainless Steel
  • Finish: Plain
  • Thread Style: Fully Threaded
  • Pack Quantity: 2
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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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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)

Stella A. ★★★★★

These went on a trailer hitch rebuild and the 18/8 stainless hasn't shown a hint of rust after a wet winter. Fully threaded was the right call for the thick plate I was clamping. Heads took a breaker bar without rounding.

Christopher H. ★★★★★

Threads are clean and cut well — no chasing needed, which isn't always the case with big stainless bolts. The 18/8 stainless should hold up fine outdoors, and at 3-1/2" long they torqued down snug on my equipment mounts.

Kevin ★★★★★

These are seriously beefy — the 1-1/4 inch diameter heads take a big socket and the threads ran clean the whole way down. Used four of them bolting a trailer hitch plate to a steel frame and nothing stripped or galled. Stainless at this price for a 3-1/2" fully threaded bolt is hard to beat.