Mutual Screw & Supply

1-1/8-7 X 3-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Fully Threaded (12 / Pkg.)

1-1/8-7 X 3-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$353.15 $470.86 In stock

1-1/8-7 x 3-1/2" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade L9 Alloy Steel Yellow Zinc construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 12

Specifications

  • Thread Size: 1-1/8-7
  • Length: 3-1/2"
  • Threads Per Inch: 7
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 12
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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)

Timothy ★★★★★

The threads on these L9 bolts are noticeably cleaner and more consistent than the import ones I've been using. They torqued down smoothly on my shop press without any binding.

Claire ★★★★★

These fit perfectly in my press’s die set, and the L9 alloy steel feels like it can handle the toughest jobs. The yellow zinc coating gives them a nice, uniform look, and the fully threaded length made installation a breeze.

Riley L. ★★★★★

I needed a high-grade bolt for a trailer hitch repair and these L9 alloy screws threaded in smoothly without binding. The hex head gripped my socket perfectly, and the yellow zinc coating looks like it will hold up well outdoors.