Mutual Screw & Supply

5/8-18 X 1-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Fully Threaded (25 / Pkg.)

5/8-18 X 1-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$86.73 $122.16 In stock

5/8-18 x 1-1/2" 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 25

Specifications

  • Thread Size: 5/8-18
  • Length: 1-1/2"
  • 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)

Nicholas ★★★★★

These have the clean threads I expect from USA-made hardware, and the yellow zinc coating looks tough enough to last in my shop. They snugged up perfectly on my press with no binding.

Brian R. ★★★★★

These bolts threaded in perfectly on my press brake with no binding, and the yellow zinc coating looks like it will hold up way better than the black oxide ones I had before. The hex heads gave my socket a solid grip without any rounding.

Penelope R. ★★★★★

Had to swap out some worn bolts on a press brake and these L9s showed up with that proper yellow zinc shine, fully threaded so I didn’t have to mess with partial engagement. The 5/8-18 threads cut in clean with a socket, and a full 25-pack means I’ve got spares for the next job.