Mutual Screw & Supply

3/8-24 X 3/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Fully Threaded (100 / Pkg.)

3/8-24 X 3/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc - Main image
$62.55 $97.73 In stock

3/8-24 x 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 100

Specifications

  • Thread Size: 3/8-24
  • Length: 3/4"
  • Threads Per Inch: 24
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 100
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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)

Zoe A. ★★★★★

The threading is clean and the yellow zinc gives them a nice, uniform finish—no burs to fight with. I used these for a jig rebuild and they snugged down perfectly without any stripping. Top-notch fit for the price.

Julian Q. ★★★★★

These hold up great under torque; the hex heads are crisp and the yellow zinc finish looks clean. The threading was consistent across all 100 pieces, so I didn't have to waste time chasing any bad bolts.

Richard W. ★★★★★

Needed to replace some bolts on a heavy-duty jig and the hex head made it easy to torque down with a socket. The Grade L9 alloy steel feels solid, no stripping or bending under load. These are exactly what I needed for a reliable industrial fix.