Mutual Screw & Supply

1/2-20 X 4" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc (25 / Pkg.)

1/2-20 X 4" Hex Head Cap Screws | USA Made | PFC9 Alloy Steel Yellow Zinc (25 / - Main image
$46.25 $73.41 In stock

1/2-20 x 4" 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: 1/2-20
  • Length: 4"
  • Threads Per Inch: 20
  • 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 (4.4 / 5 · 5 reviews)

Isabella ★★★★★

The yellow zinc finish looks really clean and should hold up well in my shop. These 4-inch screws threaded perfectly into my press table frame without any binding.

Grace K. ★★★★★

The hex heads on these screws give a solid grip with a socket wrench—no stripping or slipping. They threaded smoothly into my equipment stand without any binding. At this length and thread pitch, they're exactly what I needed for a sturdy assembly.

Ella T. ★★★★★

I needed some serious bolts for a repair on a heavy-duty press, and these hex heads fit my socket perfectly without any stripping. The yellow zinc coating looks tough and should hold up well in a shop environment.