- Sharp threads & points
- Built-in washer
- Climatek coated
- Case-hardened steel
- ICC-ES Report #2442 Full report attached to PDF
GRK's RSS screw is made of specially hardened steel to provide you with high tensile, torque and shear strength. The sharp threads and points bite instantly into the material (including hardwood). The small shank reduces the possibility of splitting. RSS round head with built-in shield (washer type head) has no sharp edges as found on conventional lag screws. The added shoulder (nominal diameter) underneath the washer has the ability to center the screw in pre-drilled hardware like hinges and connector plates. Best of all, the RSS screw may be used as a lag screw alternative.