Mutual Screw & Supply

9/16-12 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (25 / Pkg.)

9/16-12 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc - Main image
$153.7 $213.47 In stock

9/16-12 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: 9/16-12
  • Length: 4"
  • Threads Per Inch: 12
  • 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 (5.0 / 5 · 5 reviews)

Miles R. ★★★★★

The box these came in was packed tight, and every single head is clean and free of burrs. I torqued them down on a jig without a single one stripping, and the yellow zinc finish feels properly slick.

Natalie R. ★★★★★

Been using these to mount a heavy motor bracket, and the partially threaded design gives a solid bite without bottoming out. The yellow zinc finish looks tough and hasn't shown any rust after a week of exposure.

Sebastian ★★★★★

Finally got these for securing some heavy-duty brackets, and the partial threading really helped grip everything tightly without slipping. The hex heads drove cleanly with a socket, no rounding at all. Solid fasteners.