Description
WoodPro Fasteners ST516X318-25PC 5/16-Inch by 3-1/8-Inch Length Round Washer Head Exterior Wood Screws, 25-Pack offer durable steel construction with a gold galvanized finish designed for exterior use. These wood screws feature a square head style and Torx T-30 drive for secure fastening and reduced bit slippage. Coated with PPG Industries’ 1,500-hour golden Electro-Polyseal finish, they resist corrosion and chipping. The patented ASTER thread and sharp Type-17 point ensure quick starting and easy drilling for post framing, insulation, and other outdoor projects.
Features
- 5/16 x 3-1/8 inch steel screws with square head style
- T-30 Star Drive, Torx compatible for secure fastening
- Patented ASTER thread for fast starts
- Sharp Type-17 point for efficient drilling
- PPG 1,500-hour golden E-Coat for corrosion resistance
- Includes one 25mm T-30 star bit
Benefits
- Enhanced corrosion protection for exterior applications
- Reduced bit slippage for smoother installation
- Quick and effortless screw driving saves time
- Versatile use for post framing and insulation panels
- Durable steel construction ensures long-lasting performance
Technical Specifications
- Material: Steel
- Drive system: Torx T-30 Star Drive
- Head style: Square
- Length: 3-1/8 inches
- Finish: Gold Galvanized, PPG 1,500-hour E-Coat
- Package quantity: 25 screws
- Dimensions (L x W x H): 8.9 x 8.9 x 6.1 cm
- Weight: 68 g
- Country of origin: Taiwan
- Usage: Interior and exterior applications





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