Mutual Screw & Supply

1"-8 X 5" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially Threaded (30 / Pkg.)

1"-8 X 5" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially - Main image
$127.61 $170.14 In stock

ASTM A193 B7 Alloy Steel Plain hex head cap screws, partially threaded, size 1"-8 x 5". 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: 5"
  • Threads Per Inch: 8
  • Material: ASTM A193 B7 Alloy Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 30
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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)

Harper ★★★★★

The knurling on these heads gives a solid grip even with oily gloves, and the 1"-8 threads cut clean without any binding. Took a full 5-inch length into a steel jig and torqued it down to spec with zero flex. These B7s are holding up great after a week of heavy vibration.

Benjamin ★★★★★

The partially threaded design made seating these in deep blind holes a breeze, and the 1"-8 thread pitch engaged smoothly without any binding. The plain finish is exactly what I needed for a flange joint where I was already applying anti-seize. Solid set of 30 for the price.

William ★★★★★

Needed a solid batch of 1"-8 x 5" fasteners for a compressor rebuild, and these B7s are exactly what I wanted. The partial threading caught perfectly on the coupling, and all thirty came with clean, uniform threads and no burrs. They’ve held up to serious torque without a hint of stripping.