Screws details
WoodPro Fasteners 5/16"x5-1/8" Round Washer Head Exterior Wood Screws, 25-Pack (ST516X518-25PC)
The WoodPro ST516X518-25PC 5/16" x 5-1/8" Exterior Wood Screws are engineered for strength and corrosion resistance in demanding outdoor and structural applications. Featuring a gold galvanized PPG 1,500-hour E-Coat, these steel screws are built to last through harsh conditions. The round washer head and Torx-compatible T-30 star drive offer secure fastening with minimal slippage, while the patented ASTER thread and Type-17 point ensure quick starts and smooth drilling. Ideal for post-to-pole framing, insulation panels, and general wood fastening.
5/16" diameter x 5-1/8" length wood screws
Includes 25mm T-30 star bit
Round washer head with Torx-compatible star drive
Gold galvanized PPG 1,500-hour Electro-Polyseal E-Coat
Patented ASTER thread for fast starting
Sharp Type-17 point for easy penetration
High corrosion resistance for long-lasting outdoor use
Reduces bit slippage with secure star drive
Effortless drilling in wood materials
Ideal for structural and exterior wood fastening tasks
Reliable performance in harsh environments
Technical Specifications:
Material: Steel (Alloy Steel)
Drive System: Torx (T-30)
Head Style: Round Washer Head
Finish: Gold Galvanized with PPG 1,500-Hour E-Coat
Thread Size: 5/16"
Thread Type: ASTER, Right Hand
Point Style: Type 17
Package Quantity: 25 screws + 1 star bit
Item Weight: 1.26 lbs
Product identification
- Brand: WoodPro Fasteners
- Model / MPN: ST516X518-25PC




