Mutual Screw & Supply

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

5/8-18 X 5-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$79.99 $112.66 In stock

5/8-18 x 5-1/2" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 5 Steel Yellow Zinc construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 25

Specifications

  • Thread Size: 5/8-18
  • Length: 5-1/2"
  • Threads Per Inch: 18
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially 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 (4.8 / 5 · 5 reviews)

William ★★★★★

I used these to replace the bolts on my press and the hex head took a socket without slipping at all. The zinc finish still looks new after getting a little greasy.

Miles ★★★★★

The partial threading on these 5/8-18 bolts made alignment a breeze when I was bolting down a heavy base plate—no fighting the threads to get the first few turns started. Grade 5 yellow zinc finish looks solid and should hold up fine in a shop environment. Fit the 5/8 socket perfectly, and the 25-pa

John L. ★★★★★

Needed a set of beefy bolts for a heavy-duty farm press rebuild, and these grade 5 screws fit the bill perfectly. The hex heads gripped my socket firmly without any rounding, and the partial threading made alignment much easier than a fully threaded bolt would have.