Acorn SW-MW15BR250 Metal to Wood Screw Red 250 Count

Product Description

The ACORN SW-MW15BR250 is a self-piercing, sealing tapping screw designed for metal-to-wood fastening in roofing and siding applications. Made from heat-treated C1022 steel with a case-hardened finish, each screw measures 1-1/2 inches in length and features a 1/4-inch across-flat high-hat hex washer head with an assembled EPDM (Ethylene Propylene Diene Monomer) washer. The washer conforms to the substrate surface, creating a secure, weatherproof seal. A twin-lead Type 17 point and hi-lo thread pattern deliver faster drive time and greater pull-out resistance. All screws receive a 1,000-hour salt spray-tested dacro base coating, with a red powder coat applied over it. Sold in a pack of 250. Installed by roofing and siding contractors working with metal panel systems.

The SW-MW15BR250 is suited for residential and light commercial roofing and siding installations where metal panels are fastened to wood structural members. The EPDM washer seals the fastener penetration point, helping prevent moisture intrusion at each screw location. The self-piercing point eliminates the need for pre-drilling in typical metal panel gauges, speeding up installation on panel systems where drive efficiency and consistent sealing are critical to long-term performance.

Key Features

• Self-piercing Type 17 point eliminates pre-drilling in standard metal panel gauges
• Hi-lo thread pattern provides faster drive time and increased pull-out resistance
• Assembled EPDM washer conforms to surface for a weatherproof seal at each penetration
• 1/4-inch across-flat high-hat hex washer head for consistent torque application
• Dacro coating rated for 1,000-hour salt spray resistance; red powder coat over dacro base
• Heat-treated, case-hardened C1022 steel construction for roofing and siding duty

Compatibility

Designed for metal-to-wood fastening applications in roofing and siding installations where a self-sealing, corrosion-resistant screw is required.

Installation Notes

Installation is typically performed by roofing and siding contractors using a hex-head driver bit matched to the 1/4-inch across-flat head. Drive speed should be controlled to avoid over-compressing the EPDM washer, which can compromise the seal. Follow applicable building codes and panel manufacturer fastening schedules for spacing and edge distances. Inspect each installed screw to confirm the washer is flush and evenly seated against the panel surface.