Mutual Screw & Supply

3/8-16 X 1-3/8" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Fully Threaded (100 / Pkg.)

3/8-16 X 1-3/8" Hex Head Cap Screws | Grade 5 Steel Yellow Zinc | Fully - Main image
$29.05 $40.92 In stock

3/8-16 x 1-3/8" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 5 Steel Yellow Zinc construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Sold in packs of 100

Specifications

  • Thread Size: 3/8-16
  • Length: 1-3/8"
  • Threads Per Inch: 16
  • Material: Steel
  • Grade: Grade 5
  • Finish: Yellow Zinc CR+6
  • Thread Style: Fully 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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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)

Richard Q. ★★★★★

The yellow zinc coating on these is really clean and consistent, and they threaded smoothly into my tractor's bracket without any binding. A solid choice for general equipment repairs.

Alexander D. ★★★★★

I used these to bolt a motor mount back onto my milling machine, and the hex heads seated perfectly with my socket. The yellow zinc has held up well even after a few days of exposure to coolant mist. A solid choice for replacement fasteners.

Owen ★★★★★

These bolts threaded smoothly into my machinery and the yellow zinc finish looks clean and consistent across all 100 pieces. Perfect grip for my socket wrench without any stripping.