Mutual Screw & Supply

1"-8 X 4" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially Threaded (35 / Pkg.)

1"-8 X 4" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially - Main image
$122.59 $163.45 In stock

ASTM A193 B7 Alloy Steel Plain hex head cap screws, partially threaded, size 1"-8 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: 1-8
  • Length: 4"
  • Threads Per Inch: 8
  • Material: ASTM A193 B7 Alloy Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 35
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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)

Steven ★★★★★

Threads cut clean and the partial threading made alignment way easier than I expected on this motor mount. These B7s feel properly heat-treated, solid weight, and all 35 arrived with no damaged threads. Definitely my new go-to for heavy bolting.

Julian C. ★★★★★

Installed these on a large pump base and the threads cut clean without any binding. The partially threaded shank gave just the right grip depth for my 4-inch flanges.

Brian K. ★★★★★

Took these to a heavy equipment repair job and the partially threaded design made alignment much easier than fully threaded bolts. The alloy steel feels solid, no bending under high torque.