GRK Fasteners RT Series 15079 Screw, #8 Thread, 2-1/2 in L, Partial Thread, Trim Head, Star Drive, Type 17 Point, Steel UTILITY WINDOWS 74 psi max pressure

74 psi max pressure

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GRK Fasteners RT Series 15079 Screw, #8 Thread, 2-1/2 in L, Partial Thread, Trim Head, Star Drive, Type 17 Point, Steel UTILITY WINDOWS 74 psi max pressureGRK has modified it's innovative FIN Trim head screw to include reverse threading under the head of the fastener. This technology makes the RT Composite trim screw ideal for use in composite and cellular PVC trim. Based on extensive tests, GRK has found that the reverse thread helps the screw head disappear beneath the surface of the classic wood composite material, reducing or eliminating the dimple that sometimes appears when using the FIN Trim