Mutual Screw & Supply

1/4-20 X 1-3/8" Hex Head Cap Screws | USA Made | Grade 8 Steel Yellow Zinc | Partially Threaded (200 / Pkg.)

1/4-20 X 1-3/8" Hex Head Cap Screws | USA Made | Grade 8 Steel Yellow Zinc | - Main image
$42.77 $60.24 In stock

1/4-20 x 1-3/8" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 8 Steel Yellow Zinc construction
  • Partially Threaded
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 200

Specifications

  • Thread Size: 1/4-20
  • Length: 1-3/8"
  • Threads Per Inch: 20
  • Material: Steel
  • Grade: Grade 8
  • Finish: Yellow Zinc CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 200
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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 (4.8 / 5 · 5 reviews)

Kevin P. ★★★★★

The yellow zinc coating is doing its job—no rust after a week in a damp shop, and the partial threading held tight on a motor mount. Barely stripped a single hex head, even when torquing with an impact driver. Solid buy.

Emily ★★★★★

Needed exactly 200 bolts for a frame repair and the count was spot-on. The Grade 8 steel feels much sturdier than the hardware store stuff, and the yellow zinc coating looks factory-fresh.

George I. ★★★★★

Installing these into a steel bracket was effortless—the hex heads grabbed the socket perfectly without any stripping. The yellow zinc coating looks solid and should resist rust well in my workshop. Exactly what I needed for heavy-duty assembly.