Mutual Screw & Supply

3/8-16 X 7/8" Hex Head Cap Screws | USA Made | Grade 8 Steel Yellow Zinc | Fully Threaded (100 / Pkg.)

3/8-16 X 7/8" Hex Head Cap Screws | USA Made | Grade 8 Steel Yellow Zinc | - Main image
$28.18 $37.57 In stock

3/8-16 x 7/8" hex head cap screws for machinery, equipment assembly and general industrial fastening.

  • Grade 8 Steel Yellow Zinc construction
  • Fully Threaded
  • Hex head for wrench or socket drive
  • Made in the USA
  • Sold in packs of 100

Specifications

  • Thread Size: 3/8-16
  • Length: 7/8"
  • Threads Per Inch: 16
  • Material: Steel
  • Grade: Grade 8
  • Finish: Yellow Zinc CR+3
  • 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 (4.8 / 5 · 5 reviews)

Richard ★★★★★

The threading on these cap screws is clean and consistent across all 100 pieces, which saved me time during a truck mount assembly. The Grade 8 yellow zinc finish feels robust and hasn't shown any flaking after tightening with an impact wrench. Price per piece is fair for hardware this solid.

Chloe ★★★★★

These are my go-to bolts for anything that needs to hold tight under vibration. The hex heads give a solid grip with a socket, and the yellow zinc looks sharp on my tractor repairs.

Chloe ★★★★★

The threading is clean and consistent across all 100 bolts, so no chasing threads needed. Used these for a heavy jig build and the Grade 8 yellow zinc finish held up well under the wrench.