Our Deep (Coarse) screws are the preferred choice for most woodworking applications. Aggressive threads maximize holding power in softwoods, particle board and MDF board.  

The built-in nibs under the head assist the fastener to self-countersink the screw head without pre-boring.  The Type 17 self-drilling point prevents splitting and bursting of wood particularly for softwoods, particle board and MDF board by displacing excess wood material from the drilled hole.