Mutual Screw & Supply

7/8-9 X 3" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Plain | Partially Threaded (30 / Pkg.)

7/8-9 X 3" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Plain | - Main image
$113.3 $177.03 In stock

A307 Grade B Steel Plain hex head cap screws, partially threaded, size 7/8-9 x 3". A dependable fastener for machinery, equipment assembly, and general industrial use.

  • A307 Grade B Steel Plain 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: 3"
  • Threads Per Inch: 9
  • Material: A307 Grade B Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 30
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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)

William ★★★★★

Needed a batch of heavy-duty screws for a machinery frame I was rebuilding, and these A307 Grade B bolts held up perfectly under torque. The partial threading made alignment a lot easier than fully threaded options I've used before.

Ruby ★★★★★

The partial threading on these 3-inch hex cap screws made installation much easier in tight spaces where full threads would've been a hassle. The A307 grade steel feels substantial and the hex head seated firmly without any stripping. Just what I needed for a heavy equipment repair.

Jason ★★★★★

I needed heavy-duty bolts for securing industrial shelving, and these 7/8-9 x 3" hex cap screws handled the load without a hitch. The partially threaded design made installation quick since the threads didn't bind up in the middle. Solid US steel, and the pack of 30 covered my project with a few to