Mutual Screw & Supply

7/8-9 X 4-1/2" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Plain | Partially Threaded (25 / Pkg.)

7/8-9 X 4-1/2" Heavy Hex Cap Screws | USA Made | A307 Grade B Steel Plain | - Main image
$98.26 $153.53 In stock

A307 Grade B Steel Plain hex head cap screws, partially threaded, size 7/8-9 x 4-1/2". 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: 4-1/2"
  • Threads Per Inch: 9
  • Material: A307 Grade B Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 25
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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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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)

Penelope ★★★★★

The partially threaded section on these 7/8-9 bolts seated perfectly in my equipment frame, and the A307 Grade B plain finish handled the torque without stripping. Used about ten of the twenty-five so far, and every one threaded clean from the first turn.

John ★★★★★

Threads cut clean and the A307 steel feels properly hardened—my equipment assemble didn't strip a single one. The partial threading on the 4-1/2" length grabbed just right for the heavy frame I bolted up.

Timothy T. ★★★★★

I needed heavy-duty bolts for a piece of industrial shelving, and these hex cap screws threaded cleanly into the nut without binding. The A307 grade steel definitely feels tougher than the standard stuff I’ve used before.