1/4-20 x 2.5" Thread Rolling Screw

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:

Material: steel
Length: 2.5 inch
Thread size: 1/4-20
Type: Thread rolling screw, Trilobe
Weight: 0.03 pound
Finish: Zinc
Drive: Hex - unslotted, 3/8" wide across flats
Optimal hole size for thread forming: 0.23 inch diameter
Weight: 0.034 pounds

MFR Part #: am-1222

$1.54

Availability: In stock

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Specifications
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