GRK 10231 Rugged Structural Screw, #5/16 X 5-1/8", Bulk Masonry Stains & Paint copper or aluminum roofing

copper or aluminum roofing

High impact ABS case for durability

Adjusting screws has self- seating washer and nut for quick adjustments

Stain Blocking: No

The full resin bond provides excellent abrasive grain retention

GRK 10231 Rugged Structural Screw, #5/16 X 5-1/8", Bulk Masonry Stains & Paint copper or aluminum roofingHighlights : Scientifically proven to out perform traditional screws Patented designs for no pre drilling Patented Climatek all weather coating May be used for Lag screw replacement Self countersinking design W Cut thread design, ZipTip Sharp threads and points Built in washer 300 Pieces Per Box Size: #5 16 X 5 1 8"