Rock-On 23316 Serrated Head Star Drive Cement Board Screws, 9" x 1"-5/8", 575-Pk FREEOVER35 A blend of steam cured

A blend of steam cured asphalt & graded aggregates

Open-faced flute offers improved chip removal

Includes extra ceramic disk for support unit off of fountain bottom

Comes with full roll cage to protect engine and pump

Rock-On 23316 Serrated Head Star Drive Cement Board Screws, 9" x 1"-5/8", 575-Pk FREEOVER35 A blend of steam curedThe Rock On 1 1 4 in. Cement Board Screws are designed for attaching Durock, Wonderboard or equivalent glass mesh cement backerboard to wood or light gauge steel studs. Rock On's patented serrated head design countersinks for flush seating at any angle, providing a smooth surface for tile. 575 pack Size: 9" x 1" 5 8" Serrated head design for flush seating even at an angle Patented sharp point offers immediate pick up and eliminates the need to pre