Description
The WoodPro Fasteners ST516X4B 5/16-Inch by 4-Inch Round Washer Head Exterior Wood Screws are engineered for durability and corrosion resistance in demanding outdoor and indoor wood applications. Featuring a gold galvanized finish with a PPG 1,500-hour Electro-Polyseal E-Coat, these screws provide superior protection against the elements. The T-30 Torx-compatible STAR drive minimizes bit slippage, while the patented ASTER thread and sharp Type-17 point allow for fast, easy starts and reduced splitting in wood. Ideal for post-to-pole framing, insulation panels, and other wood fastening tasks, this 250-pack is built for performance and precision.
- Features:
- 5/16″ x 4″ screws with round washer head design
- Includes one 25mm T-30 STAR bit
- PPG Golden E-Coat with 1,500-hour corrosion resistance
- Patented ASTER thread for faster starts
- Type-17 point reduces wood splitting during installation
- Torx-compatible STAR drive minimizes cam-out
- Benefits:
- Reliable for both exterior and interior wood fastening
- Reduces the risk of drive bit slippage
- Coating resists chipping and environmental wear
- Streamlines work with quicker, cleaner starts
- Ideal for structural wood projects like framing and panels
- Technical Specifications:
- Brand: WoodPro Fasteners
- Part Number: ST516X4B
- Size: 5/16″ x 4″
- Material: Steel
- Drive System: Torx (T-30)
- Head Style: Round Washer Head
- Exterior Finish: Gold Galvanized, PPG 1,500 Hour E-Coat
- Point Style: Type 17
- Thread Type: ASTER, Partially Threaded
- Measurement System: Imperial
- Item Weight: 9.92 lbs
- Package Quantity: 250 Screws
- UPC: 649853885848
- GTIN: 00649853885848
- Country of Origin: Taiwan
- Usage: Interior and Exterior






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