Mutual Screw & Supply

7/8-9 X 4" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially Threaded (45 / Pkg.)

7/8-9 X 4" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially - Main image
$97.31 $159.53 In stock

ASTM A193 B7 Alloy Steel Plain hex head cap screws, partially threaded, size 7/8-9 x 4". A dependable fastener for machinery, equipment assembly, and general industrial use.

  • ASTM A193 B7 Alloy 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"
  • Threads Per Inch: 9
  • Material: ASTM A193 B7 Alloy Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 45
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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)

Emily ★★★★★

The hex heads on these bolts gave my wrench a solid grip without slipping, and the B7 alloy steel feels strong enough for my heavy equipment setup. I used a full package on a conveyor line repair and they cinched down securely with no stripping.

Grace V. ★★★★★

These 7/8-9 bolts threaded in cleanly by hand for the first few turns, which saved me time on a large flange job. The partial threading is just right for clamping thick brackets without shaving material.

Owen ★★★★★

Needed heavy-duty fasteners for a press rebuild, and these B7s handled the torque specs without any issue. The hex head took a socket nicely, and the partial threading made alignment easier.