Mutual Screw & Supply

3/4-10 X 3-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (20 / Pkg.)

3/4-10 X 3-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$187.51 $250.01 In stock

3/4-10 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 20

Specifications

  • Thread Size: 3/4-10
  • Length: 3-1/2"
  • Threads Per Inch: 10
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 20
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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 (4.6 / 5 · 5 reviews)

Hazel ★★★★★

The partial threading made all the difference when mounting a steel bracket — no wasted threads sticking out. These L9 bolts feel incredibly solid compared to the standard hardware I usually grab. A great upgrade for any serious assembly job.

Daniel ★★★★★

Wrenched these onto a heavy equipment bracket and the L9 alloy handled the torque without a hint of flex. The partially threaded design gripped the mating piece perfectly for a secure seating, and the yellow zinc coating looks like it’ll shrug off shop grime. Packaging was solid, too—all twenty arri

Hannah N. ★★★★★

The threads cut clean and the yellow zinc finish is tough—no chips after cranking them down with an impact wrench. For the price, you get solid L9 alloy steel that feels more substantial than the cheap hardware I've grabbed before. My only note is the partial threading means you need the right shank