1/4-20 x 2.5 in. Thread Rolling Screw Hex Washer Head

am-1222

$1.20

2.5 in. 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 fastene...Read More

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Product Overview

2.5 in. 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: 3/8 in. wide across flats Hex Unslotted
  • Finish: Zinc
  • Head: Hex Washer
  • Length: 2.5 in.
  • Material: Steel
  • Optimal Hole Size For Thread Forming: 0.23 in. diameter
  • Style: Thread rolling screw
  • Thread: 1/4-20
  • Weight: 0.005 lbs

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