Mutual Screw & Supply

5/8-18 X 1-3/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Fully Threaded (25 / Pkg.)

5/8-18 X 1-3/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$81.87 $134.22 In stock

5/8-18 x 1-3/4" 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: 1-3/4"
  • 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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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 (4.2 / 5 · 5 reviews)

Andrew ★★★★★

Used these on a piece of heavy equipment that keeps vibrating things loose, and the yellow zinc finish hasn't shown a speck of wear after a month of hard use. Fully threaded, so I was able to get a solid bite even with a thick washer stack, and the hex head gripped cleanly with a socket.

Harper ★★★★★

The hex heads on these bolts seated perfectly in my socket without any wobble, and the yellow zinc finish is evenly applied. They threaded smoothly into a tapped hole on my press table with no binding at all.

Avery ★★★★★

Finally got these for a heavy-duty jig I've been building, and the Grade L9 alloy steel is noticeably tougher than the hardware store stuff. The fully threaded shaft made it easy to get the exact bite I needed without any binding. They're holding up great under torque.