Flat Head Wood Screw, Phillips Drive, Hi-Low Thread, With Ribs

Product Description

Flat Head Wood Screw, Phillips Drive, Hi-Low Thread, With Ribs conforming to Wood Screw specifications are designed for wood and timber fastening applications. The Hi-Low thread design features alternating high and low thread crests, providing superior holding power in soft materials by reducing driving torque while maximizing pull-out resistance. The Phillips drive provides reliable driving performance. Ribs under the head reduce driving torque and improve countersinking for a flush finish.

Available in sizes M2.5 through #14 with lengths from 8-30mm to 1-1/2-8", covering the most common range for industrial assembly applications. Custom sizes outside standard ranges can be produced for OEM customers with sufficient volume requirements. Standard materials include carbon steel Grades 4.8 and 8.8. Stainless steel A2 and A4 available for corrosive environments. Surface treatments include Z.P.L Y.Z.P Decromet Ruspert. Zinc plating (Z.P.L) provides 48-96 hours salt spray protection for general indoor use. Black zinc phosphate (B.Z.P) offers matte appearance with mild corrosion resistance. Nickel plating (Ni.P) provides superior wear and chemical resistance. Decromet coating delivers automotive-grade protection exceeding 500 hours per ASTM B117. Ruspert ceramic coating provides extended outdoor and marine exposure protection up to 1000 hours. Hot-dip galvanizing provides heavy-duty atmospheric protection for outdoor structural applications.

Typical applications span furniture, cabinetry, millwork, and general woodworking. These fasteners are designed to meet or exceed applicable international standards for dimensional accuracy and mechanical performance. Aufaster supplies these products in bulk packaging with full material traceability per EN 10204 Type 3.1, dimensional inspection reports, and mill test certificates available on request. Custom sizes, special materials, and non-standard finishes are available for OEM customers with volume requirements. Hi-Low thread screws are particularly effective in MDF, particle board, and plastic housings.