Mutual Screw & Supply

5/8-11 X 4-1/2" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc (25 / Pkg.)

5/8-11 X 4-1/2" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc - Main image
$78.06 $123.9 In stock

5/8-11 x 4-1/2" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • PFC9 Alloy Steel Yellow Zinc construction
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 25

Specifications

  • Thread Size: 5/8-11
  • Length: 4-1/2"
  • Threads Per Inch: 11
  • Material: Alloy Steel
  • Grade: PFC9
  • Finish: Yellow Zinc CR+6
  • Pack Quantity: 25
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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 (4.6 / 5 · 5 reviews)

Adam I. ★★★★★

I used these to replace some worn bolts on an old press, and the PFC9 alloy steel feels noticeably tougher than the generic hardware I had before. The hex heads held up perfectly under a high-torque impact wrench without any stripping.

Natalie S. ★★★★★

Installed these on a heavy-duty press fixture and the yellow zinc coating held up great against oil and shop dirt. The hex heads let me torque them down without slipping.

David M. ★★★★★

Threaded perfectly into my equipment mounts with no binding, the hex head gave my socket a solid grip. Counted all 25 bolts and the finish looks uniform, no flaking. Fast shipping too.