Mutual Screw & Supply

7/8-9 X 3-3/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (65 / Pkg.)

7/8-9 X 3-3/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$950.06 $1338.11 In stock

7/8-9 x 3-3/4" 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 65

Specifications

  • Thread Size: 7/8-9
  • Length: 3-3/4"
  • Threads Per Inch: 9
  • Material: Alloy Steel
  • Grade: Grade L9
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 65
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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)

Brian C. ★★★★★

The hex heads fit my socket perfectly, and the yellow zinc finish looks clean even in a greasy shop environment. Threaded right into the steel framework without any binding at all.

Ella ★★★★★

Used them to bolt down a heavy conveyor bracket and the L9 yellow zinc held up great under the torque— no stripping, no rust worries. Threads were clean and the partial threading made seating the nut a breeze.

Alexander ★★★★★

The partially threaded design made alignment much easier when fastening this to a thick steel bracket. These Grade L9 bolts torqued down smoothly without any galling, and the yellow zinc coating looks like it will hold up well in a shop environment.