1/4-20x2.5 Thread Rolling Screw

am-1222

$1.00

2.5 inch long thread rolling (thread forming) screw The Hex Washer Head has a flat washer that extends beyond the sides, providing it with a greater bearing surface than a normal hex head fastener...Read More

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Product Overview

2.5 inch long thread rolling (thread forming) screw

The Hex Washer Head has a flat washer that extends beyond the sides, providing it with a greater bearing surface than a normal hex head fastener. The washer and the Hex Head are bonded together as one piece; this offers greater protection to the mating surface than a standard hex head. The increased bearing area decreases the likeliness of crushing mating surfaces. Trilobe, or Thread Rolling, screws have a blunt tapered point that requires a pre-drilled or punched hole; eliminates chips and permits replacement with standard screw. Zinc plating, retards the corrosion rate in a normal atmosphere.

Specifications

  • Drive: Hex - unslotted, 3/8" wide across flats
  • Finish: Zinc
  • Length: 2.5 in.
  • Material: steel
  • Optimal Hole Size For Thread Forming: 0.23 in. diameter
  • Style: Thread rolling screw, Trilobe
  • Thread: 1/4-20
  • Weight: 0.03 lbs,0.034 lbs

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