3/8 in. x 5-1/8 in. RSS T-30 Star-Drive Washer-Head Sharp-Point Climatek Structural Screws, Black (50 Pack) | GRK-16278

GRK Fasteners RSS Black Structural Screws feature a washer-style head that distributes load across a wider surface area, enhancing holding power and preventing overdrive. The star-drive recess reduces cam-out and provides better bit engagement under high torque. These structural fasteners are also ACQ-rated, making them compatible with treated lumber in outdoor or ground-contact settings. Whether used in code-critical projects or demanding framing conditions, this screw is built to exceed structural performance expectations across a wide range of applications.

• Washer-style head provides enhanced holding power and prevents overdriving into wood surfaces
• Star-drive design ensures better bit engagement and reduces the risk of cam-out during installation
• Sharp threads and tapered shank allow for fast, smooth driving with minimal splitting
• Black corrosion-resistant coating offers long-term durability in treated wood and outdoor environments
• Hardened steel construction delivers high shear strength suitable for structural and framing applications