Mutual Screw & Supply

7/8-9 X 5-1/2" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially Threaded (35 / Pkg.)

7/8-9 X 5-1/2" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | - Main image
$119.81 $159.75 In stock

ASTM A193 B7 Alloy Steel Plain hex head cap screws, partially threaded, size 7/8-9 x 5-1/2". 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: 5-1/2"
  • Threads Per Inch: 9
  • Material: ASTM A193 B7 Alloy Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 35
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Customer Reviews (5.0 / 5 · 5 reviews)

Steven ★★★★★

Used these on a large pump base and the threading held torque really well without galling. The 5-1/2 inch length gave just enough grip through the flanges.

Claire ★★★★★

The partially threaded design made driving these into a thick steel bracket much easier than fully threaded bolts I've used before. They seated firmly with zero wobble, and the alloy steel feels reassuringly solid for heavy equipment work.

David Y. ★★★★★

Installed these on a heavy press frame and they torqued down smoothly without galling. The partial threading gave me just the right grip length for the flange thickness.