Mutual Screw & Supply

7/8-9 X 5-1/4" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | Partially Threaded (40 / Pkg.)

7/8-9 X 5-1/4" Heavy Hex Cap Screws | ASTM A193 B7 Alloy Steel Plain | - Main image
$106.12 $176.87 In stock

ASTM A193 B7 Alloy Steel Plain hex head cap screws, partially threaded, size 7/8-9 x 5-1/4". 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: 5-1/4"
  • Threads Per Inch: 9
  • Material: ASTM A193 B7 Alloy Steel Plain
  • Finish: Plain
  • Thread Style: Partially Threaded
  • Pack Quantity: 40
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Express Shipping · United States: $3.99

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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)

Violet O. ★★★★★

The threads are clean and the grip on the shank feels solid, so these B7s are holding my press frame together without a hint of play. For a 40-pack of this size, the heat-treated alloy is exactly what I needed for the heavy load.

Harper U. ★★★★★

The partially threaded length is exactly what I needed for a heavy machinery jig, and the alloy steel feels rock-solid under torque. Pack of 40 means I’ve got spares for the next job, too.

Hazel I. ★★★★★

Pulled them out of the package and the black oxide finish is consistent across all forty bolts, no flaws or bare spots. They threaded into the tapped holes on my press with minimal effort and held tight under full torque.