Mutual Screw & Supply

3/4-16 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (20 / Pkg.)

3/4-16 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | - Main image
$201.02 $304.58 In stock

3/4-16 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 20

Specifications

  • Thread Size: 3/4-16
  • Length: 4"
  • Threads Per Inch: 16
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 20
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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)

Harper Y. ★★★★★

The yellow zinc finish is a nice touch—gives them a clean, uniform look straight out of the box. I used a 3/4 socket on the hex head and the partially threaded portion seated perfectly in my equipment build. Solid feel, no stripped edges after torquing down.

Emily E. ★★★★★

These L9 bolts are tough as nails—the yellow zinc coating looks great and the partial threading made it easy to get a firm bite in my equipment frame. I've already used three of them and they've held up perfectly under heavy load.

Ryan D. ★★★★★

I needed some heavy-duty bolts for a custom trailer build, and these partially threaded screws gave me exactly the grip I needed without slipping. The hex head fit my socket perfectly, and the yellow zinc finish looks like it'll hold up well outdoors.