Mutual Screw & Supply

7/8-9 X 3-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially Threaded (50 / Pkg.)

7/8-9 X 3-1/2" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Partially - Main image
$75.39 $115.99 In stock

7/8-9 x 3-1/2" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 5 Steel Yellow Zinc construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 50

Specifications

  • Thread Size: 7/8-9
  • Length: 3-1/2"
  • Threads Per Inch: 9
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Partially Threaded
  • Pack Quantity: 50
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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 (4.8 / 5 · 5 reviews)

Owen ★★★★★

The partially threaded design made these cap screws easy to start by hand before tightening with a socket, and the yellow zinc finish looks clean and industrial. I used them to secure a motor mount and they held firm without any stripping.

Daniel ★★★★★

Had to replace some worn hardware on a piece of shop equipment, and these cap screws threaded in smoothly with no binding. The yellow zinc coating seems thicker than the old ones I pulled out.

Madison I. ★★★★★

I was a little worried about the partial threads, but these grade 5 bolts tightened up perfectly on my skid loader’s bucket hitch. The yellow zinc coating looks heavy-duty and should resist rust in our damp shop.