The Sammy Swivel Head features a fastener design that absorbs movement and vibration within the assembly.
The Sammy Swivel Head from Speedy Products Inc. features a fastener design that absorbs movement and vibration within the assembly. This minimizes the transfer of vibration or movement into the fastener shank and base material where movement may cause fastener failure. The new design also addresses a more prevalent problem of fastening into sloped roof members where all-thread had to be bent to a vertical position to hang plumb. Once installed, the swivel head allows the all-thread to hang plumb eliminating the need to bend the threaded rod. This fastener is UL-listed for up to 4" pipe (1500#+ pull-out) in 20-gauge steel or thicker with the r-nut, and is also UL-listed for wood installations per NFPA 13. www.sammysuperscrew.comSpeedy Products Inc.