1" Diameter, Aluminum Gyford Security Cap

Description Gyford Security Caps are designed to deter theft and vandalism. They are shorter than standard aluminum caps, making them more difficult to grip and remove without tools.  They also have a pin hole in the side of the cap.  Insert the HD-SCT Security Cap Tool (sold separately) to apply extra torque and tighten the cap against the material surface. The SO-SC9 measures 1" in diameter, and 5/16" tall. Like the rest of our caps, Security Caps are tapped for a 5/16-18 stud, included with your purchase.