Mutual Screw & Supply

3/8-24 X 2-1/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (50 / Pkg.)

3/8-24 X 2-1/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$71.36 $106.51 In stock

3/8-24 x 2-1/4" 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 50

Specifications

  • Thread Size: 3/8-24
  • Length: 2-1/4"
  • Threads Per Inch: 24
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 50
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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 (5.0 / 5 · 5 reviews)

Lily ★★★★★

These are the first Grade L9 bolts I've used in a while, and the partial threading on the 2-1/4" length makes seating them in a stacked flange assembly much faster. The hex heads grab a socket cleanly with zero stripping, and all fifty had consistent threads right out of the package.

Aurora ★★★★★

Yellow zinc finish on these is holding up great in our shop, barely a mark after a week of daily use. The Grade L9 steel feels seriously tough when torquing them down. Buying these in the 50-pack was the right call.

Lily ★★★★★

The threads cut cleanly and started by hand on both of my equipment mounts without any binding. The yellow zinc finish looks tougher than the black oxide ones I've used before.