DuraSpin collated screws make even the novice or apprentice user as fast as the most experienced bulk screw user * Collated screws mean no more screw slivers underneath your fingernails, or painful finger cuts from bulk screws * Reduced waste--eliminate the waste experienced with bulk screws (can be 10% to 15% of total screws used). * Use with cement board, drywall, floor sheathing, underlayment, and wood * 1000-pack