Mutual Screw & Supply

5/8-18 X 4-1/2" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc (25 / Pkg.)

5/8-18 X 4-1/2" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc - Main image
$101.31 $142.69 In stock

5/8-18 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: 5/8-18
  • Length: 4-1/2"
  • Threads Per Inch: 18
  • 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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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)

Carter O. ★★★★★

Used a full pack bolting down a skid-mounted pump and every single one torqued to spec without a single stripped thread. The PFC9 alloy feels noticeably tougher than the generic stainless I usually grab, and the yellow zinc coat is holding up fine in our damp shop.

Sofia ★★★★★

I needed some heavy-duty 4-1/2" bolts for a press rebuild, and these threaded in smooth without any binding. The hex head gave my socket a solid grip, and they feel tough.

Zoe ★★★★★

The yellow zinc finish on these bolts matches the older hardware on my lathe perfectly, and they threaded into the cast iron without any binding. Really glad to have a full pack of USA-made hardware for once.