Mutual Screw & Supply

5/16-24 X 1-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (100 / Pkg.)

5/16-24 X 1-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$71.32 $106.45 In stock

5/16-24 x 1-1/2" 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 100

Specifications

  • Thread Size: 5/16-24
  • Length: 1-1/2"
  • Threads Per Inch: 24
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 100
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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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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)

Zoe ★★★★★

I needed some high-strength bolts for a heavy equipment repair and these Grade L9s held up perfectly under full torque. The yellow zinc coating looks sturdy and the hex head made seating them with a socket wrench quick work.

Sebastian C. ★★★★★

The partial threading is exactly what I needed for clamping down a jig without wasting grip on clearance holes. These L9 bolts feel rock solid in the hand, and the yellow zinc coating has a nice, uniform shine that should hold up well on the shop floor.

Thomas ★★★★★

The yellow zinc finish looks great and held up fine under my impact driver. These are partially threaded, which made them perfect for clamping down a guard bracket without binding. Solid buy for a hundred count.