Mutual Screw & Supply

9/16-12 X 3-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (25 / Pkg.)

9/16-12 X 3-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$140.47 $189.83 In stock

9/16-12 x 3-1/2" 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: 3-1/2"
  • 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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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)

Zoe ★★★★★

I had to torque these down pretty hard for a heavy-duty repair, and the hex head held without stripping at all. The yellow zinc finish looks clean too.

Edward ★★★★★

These threaded all the way in smoothly with a standard wrench, and the yellow zinc finish seems like it’ll resist rust well. Perfect for securing heavy equipment on my shop press.

Elizabeth D. ★★★★★

The hex head seated perfectly with a socket wrench on our press frame, and the yellow zinc finish still looks clean after a week of oily shop work. Threads engaged smoothly even with the partial thread section, which made alignment a lot easier than fully threaded bolts would have been.