Mutual Screw & Supply

1-1/2-12 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Fully Threaded (5 / Pkg.)

1-1/2-12 X 4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc - Main image
$472.81 $630.41 In stock

1-1/2-12 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: 1-1/2-12
  • Length: 4"
  • Threads Per Inch: 12
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Fully Threaded
  • Pack Quantity: 5
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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)

Timothy J. ★★★★★

Needed some heavy-duty bolts for a press repair — these L9s handled the torque without any stretch. The hex heads fit my socket perfectly, no rounding issues.

Hannah F. ★★★★★

The threads are clean and the yellow zinc finish looks uniform across all five, so they’ll hold up fine in our shop’s humid air. Used them to bolt down a motor mount and the 1-1/2-12 pitch engaged smoothly with no binding.

Sophia ★★★★★

The hex drive seated perfectly without any stripping, and these L9 bolts feel noticeably tougher than the hardware store stuff. Nice tight threads on a fully threaded shaft for a change.