Mutual Screw & Supply

5/8-11 X 3-3/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow Zinc | Partially Threaded (100 / Pkg.)

5/8-11 X 3-3/4" Hex Head Cap Screws | USA Made | Grade L9 Alloy Steel Yellow - Main image
$627.16 $859.13 In stock

5/8-11 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 100

Specifications

  • Thread Size: 5/8-11
  • Length: 3-3/4"
  • Threads Per Inch: 11
  • 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)

Joshua X. ★★★★★

The partially threaded design made seating these in my equipment frame a breeze, and the yellow zinc finish looks sharp while holding up well. They torqued down smoothly to spec with no stripped heads across the whole hundred-count box.

Robert ★★★★★

The hex heads gave my socket wrench a solid bite during assembly, and the yellow zinc finish looks like it’ll resist rust for years. I’ve installed about a dozen so far without a single stripped thread—these L9 alloy bolts are definitely heavy-duty.

Claire U. ★★★★★

These bolts fit perfectly on my tractor's loader mount. The yellow zinc finish looks like it'll hold up well against the weather, and the L9 grade steel gives me confidence they won't snap under heavy use.