Mutual Screw & Supply

5/16-24 X 2-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (100 / Pkg.)

5/16-24 X 2-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$114.42 $168.27 In stock

5/16-24 x 2-1/2" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade L9 Alloy Steel Yellow Zinc construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 100

Specifications

  • Thread Size: 5/16-24
  • Length: 2-1/2"
  • Threads Per Inch: 24
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 100
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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 (4.8 / 5 · 5 reviews)

Hannah E. ★★★★★

Used these to rebuild a jig at work and the partially threaded shank made alignment way easier than fully threaded bolts. They torqued down clean without any galling, and the hex heads grabbed a socket perfectly every time.

Evelyn ★★★★★

The yellow zinc coating on these is evenly applied with no runs, and the partial threading worked perfectly for a bracket installation where I needed a shoulder.

Richard ★★★★★

The hex head on these 5/16-24 screws fits my socket perfectly, and the Grade L9 alloy steel feels really sturdy for heavy equipment assembly. I've already put half the pack to use on a jig I'm building.