ACORN INTERNATIONAL SW-MW15BS250 SCRW MTL BLDG M-W SLATE 9X1.5

ACORN INTERNATIONAL SW-MW15BS250 - SCRW MTL BLDG M-W SLATE 9X1.5 - METAL BUILDING SCREWS METAL TO WOOD LGTH IN=1-1/2 COLOR=SLATE - #9-15 METAL TO WOOD SCREWS ARE SEALING SELF-PIERCING TAPPING SCREWS MADE FROM HEAT TREATED C1022 STEEL, CASE HARDENED FOR ROOFING AND SIDING APPLICATIONS. A 1/4" ACROSS FLATS HIGH HAT HEX WASHER HEAD WITH ASSEMBLED EPDM WASHER OFFERS EASY DRIVING AND CONFORMS TO THE METAL SURFACE FOR A SECURE AND LONG-LASTING SEAL. THE TWIN LEAD TYPE 17 POINT AND HI-LO THREADS OFFER FASTER DRIVE TIME AND GREATER RESISTANCE TO PULLOUT. ALL SCREWS ARE 1,000 HOUR SALT SPRAY TEST DACRO COATED. COLORED SCREWS ARE POWDER COATED OVER THE DACRO BASE COATI - EQUAL TO 5670708