Mutual Screw & Supply

7/8-9 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (15 / Pkg.)

7/8-9 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | - Main image
$184.24 $307.06 In stock

7/8-9 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 15

Specifications

  • Thread Size: 7/8-9
  • Length: 4"
  • Threads Per Inch: 9
  • 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)

Owen ★★★★★

Needed these for a heavy press repair and the yellow zinc coating on the Grade L9 heads is holding up great against the wrench. The partial thread made it easy to get the right grip depth without bottoming out.

William ★★★★★

Threaded perfectly into our hydraulic press frame without any binding, and the L9 alloy steel feels seriously stout for the torque we're putting on them. The hex heads seated cleanly with a socket, no rounding even after cranking them down hard. For the price per package, these are the ones I'll gra

Matthew U. ★★★★★

The yellow zinc finish on these held up perfectly during a long day of assembly work, no galling or wear on the threads. That partially threaded design gave me just the right grip for a heavy equipment frame. Solid buy for the price, exactly what I hoped for in a US-made fastener.