Mutual Screw & Supply

7/8-9 X 5" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Zinc Plated | Partially Threaded (35 / Pkg.)

7/8-9 X 5" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Zinc Plated | - Main image
$200.6 $267.47 In stock

A307 Grade B Steel Zinc Plated hex head cap screws, partially threaded, size 7/8-9 x 5". A dependable fastener for machinery, equipment assembly, and general industrial use.

  • A307 Grade B Steel Zinc Plated construction
  • partially threaded configuration
  • Hex head for wrench or socket drive
  • For machinery, equipment, and general-purpose fastening

Specifications

  • Thread Size: 7/8-9
  • Length: 5"
  • Threads Per Inch: 9
  • Material: A307 Grade B Steel Zinc Plated
  • Finish: Zinc Plated CR+3
  • Thread Style: Partially Threaded
  • Pack Quantity: 35
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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 (5.0 / 5 · 5 reviews)

Benjamin ★★★★★

I was honestly expecting cheap imports, but these hex cap screws have real heft and the zinc coating is uniform with no flaking. The partial threading made alignment on my equipment frame easy since the smooth shaft takes the stress.

William X. ★★★★★

Installed these on a jig I use daily and the partially threaded length grabbed just right — no wobble after a week of vibration. The zinc coating’s held up better than the last batch I bought from a hardware chain, and all 35 threaded clean without a single stripped one.

Jason P. ★★★★★

Finally, a fastener that threads clean without galling. The partial thread on these 7/8-9s grabbed perfectly in my equipment mount, and the zinc finish has held up through a week of wrenching without a speck of rust.