1/4"-20 x 3-1/4" Coarse Thread TorqueMaster Wedge Anchor Bolts

Diameter: 1/4"
Length: 3-1/4"
Material: Steel
Finish: Blue
Drill Size: 1/4"
Thread Size: 20 (Coarse)
Type: Wedge Anchor
Application: Concrete|Stone

Box of 100.

All mechanical bolts have a wedge arrangement at the end. Tightening the bolt results in a wedge being driven up against a sleeve. This jams the end of the bolt, and provides the strength.