Mutual Screw & Supply

5/8-18 X 1-1/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Fully Threaded (25 / Pkg.)

5/8-18 X 1-1/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$72.12 $110.96 In stock

5/8-18 x 1-1/4" 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 25

Specifications

  • Thread Size: 5/8-18
  • Length: 1-1/4"
  • Threads Per Inch: 18
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 25
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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)

Scarlett ★★★★★

Needed a few of these for a stubborn frame jig at the shop, and the L9 alloy steel held up perfectly under heavy torque without any stripping. The yellow zinc finish is a nice touch for corrosion resistance, too.

Henry ★★★★★

I was a little worried about the torque these would hold, but the Grade L9 alloy steel hasn't budged on my press jig. The yellow zinc finish also looks great against the other hardware.

Abigail ★★★★★

These bolts seated perfectly into my machinery mount without any wobble, and the yellow zinc coating looks like it'll hold up well. The grade L9 alloy steel feels seriously strong for heavy-duty use.