Mutual Screw & Supply

7/16-20 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (25 / Pkg.)

7/16-20 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc - Main image
$77.35 $126.8 In stock

7/16-20 x 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 25

Specifications

  • Thread Size: 7/16-20
  • Length: 4"
  • Threads Per Inch: 20
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • 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 (4.4 / 5 · 5 reviews)

Steven ★★★★★

The hex head works perfectly with my socket set, and the yellow zinc finish on these Grade L9 bolts looks like it will hold up well in my shop equipment. For a 25-pack of partially threaded 4-inch screws, the price felt fair for the USA-made quality.

Lily E. ★★★★★

These bolts are exactly what I needed for a heavy-duty machinery repair. The partially threaded shank made alignment much easier than fully threaded bolts would have.

Lucy ★★★★★

These bolts threaded smoothly into my tractor’s mounting brackets without any binding—the partially threaded shaft made alignment much easier. The yellow zinc finish looks solid and the L9 grade gives me confidence for heavy-duty use.