Everflow sammys swivel screws are forged from steel and are designed for concrete. This screws heads allow the nut driver tool being used for installation to automatically spin after the anchor is installed. This screws also feature advanced thread from technology which reduces installation torque and increases pullout performance and it's blue Delta seal provides Extended corrosion protection. It is self-tapping screw anchor for cracked concrete, seismic and standard applications. This product is approved by icc-esr 2202.

Note: use with safety glass which is recommended accessory for on-site labor and staff rohs compliance warning: do not use in vibratory zone