Mutual Screw & Supply

7/8-14 X 3-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (15 / Pkg.)

7/8-14 X 3-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$210.48 $323.81 In stock

7/8-14 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 15

Specifications

  • Thread Size: 7/8-14
  • Length: 3-1/2"
  • Threads Per Inch: 14
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 15
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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)

Penelope K. ★★★★★

The yellow zinc coating on these hex head cap screws is holding up really well in my shop environment without any rust. I needed a fully threaded set for a different application, but these partially threaded ones grabbed tight and didn't strip when I torqued them down.

William ★★★★★

I’ve been using these partially threaded hex screws for heavy equipment repairs, and the yellow zinc holds up well without rusting. The pack of 15 is perfect for smaller jobs. The threads catch cleanly, making assembly quick.

Natalie ★★★★★

The yellow zinc finish on these Grade L9 bolts held up perfectly under the impact wrench without any chipping or flaking. They threaded cleanly into an existing tapped hole on my press, and the partial thread gave me exactly the grip length I needed.