Mutual Screw & Supply

3/8-24 X 1" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Fully Threaded (100 / Pkg.)

3/8-24 X 1" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | - Main image
$81.15 $114.29 In stock

3/8-24 x 1" 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: 1"
  • 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 (4.2 / 5 · 5 reviews)

Victoria ★★★★★

The yellow zinc finish is flawless across all 100 pieces, and the fully threaded shaft makes them ideal for my jig builds. Torqued them to spec with a socket and none stripped or rounded, so the machining is clearly solid.

Joseph F. ★★★★★

These bolts torqued down to spec without any stripping, which is exactly what I needed for a heavy-duty jig I’m building. The yellow zinc finish looks clean and should hold up well in my shop environment.

Henry P. ★★★★★

These bolts are exactly what I needed for a heavy equipment repair—the hex head fits a socket perfectly and the threading is clean. The yellow zinc coating looks consistent and hasn't chipped during installation. USA made, and the Grade L9 alloy steel feels solid.