Mutual Screw & Supply

1"-8 X 4-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (10 / Pkg.)

1"-8 X 4-1/2" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc - Main image
$211.31 $289.46 In stock

1"-8 x 4-1/2" 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 10

Specifications

  • Thread Size: 1"-8
  • Length: 4-1/2"
  • Threads Per Inch: 8
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 10
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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 (4.8 / 5 · 5 reviews)

Stella M. ★★★★★

These are beefy bolts, the 1"-8 thread with the partial threading makes them ideal for heavy flange work where you need full grip without fighting the threads. The L9 alloy steel feels seriously solid and the yellow zinc coating looks uniform across all ten. I've already put them through a tough ins

Lucy F. ★★★★★

The yellow zinc finish on these Grade L9 capscrews looks uniform and tough, and the partially threaded length gave me just the right grip for a heavy jig I bolted down. They’re beefy at a full inch diameter, and the hex head sat perfectly in my socket without any slop.

Penelope ★★★★★

These bolts threaded cleanly into my skid steer mounting plate without any binding. The partially threaded design gave me exactly the right grip length I needed for this heavy equipment repair.