Mutual Screw & Supply

7/8-9 X 3-3/4" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially Threaded (50 / Pkg.)

7/8-9 X 3-3/4" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | - Main image
$103.53 $169.72 In stock

ASTM A193 B7 Alloy Steel Plain hex head cap screws, partially threaded, size 7/8-9 x 3-3/4". 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: 3-3/4"
  • Threads Per Inch: 9
  • Material: ASTM A193 B7 Alloy Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 50
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Customer Reviews (4.6 / 5 · 5 reviews)

Lily ★★★★★

Used these on a heavy press rebuild and the hex head gave my socket a solid bite without any stripping. They torqued down evenly and held tight under full load.

Steven E. ★★★★★

The partial threading on these B7 bolts made aligning them in a tight spot far easier than a fully threaded fastener would have. They drove in smooth with no binding, and the hex head gave my wrench a solid bite for torquing down. Exactly what I needed for a heavy machinery repair.

Mia G. ★★★★★

The threading is clean and the partial thread leaves plenty of grip for heavy equipment flanges. Seems plenty strong for the industrial jobs I've got lined up.