Mutual Screw & Supply

1-1/2-6 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Fully Threaded (5 / Pkg.)

1-1/2-6 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc - Main image
$653.53 $871.37 In stock

1-1/2-6 x 4" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade L9 Alloy Steel Yellow Zinc construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 5

Specifications

  • Thread Size: 1-1/2-6
  • Length: 4"
  • Threads Per Inch: 6
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 5
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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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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)

Isabella ★★★★★

I was skeptical about the yellow zinc finish holding up on these bolts, but after tightening them down on my press table, they haven't shown a speck of rust. The L9 alloy steel feels seriously tough for the job.

Benjamin C. ★★★★★

The full threading on these L9 alloy screws is a huge time-saver when you need maximum grip in deep assemblies, and the yellow zinc coat held up fine during my install. Solid USA-made quality, worth the few extra bucks for critical machinery work.

William K. ★★★★★

The yellow zinc finish on these is flawless, and the threads are cut so cleanly that they drove in straight with zero binding. I’ve already used three of the five on a jig frame, and the L9 steel feels like it could outlast the machine it’s holding together.