Spax MDF Screw - #8 x 1 3/4" (4x45mm) - Box of 1000pc . Slender head, straight shank screw specifically designed for MDF. Partial thread. Special arrow-point tip enables screw to be driven (even at the edge of the workpiece) without pre-drilling. Cutting ribs on the underside of the head provide countersink for the fastener. Torx drive (T20). 1 box left at this price....save $20 over the Master Pack pricing for the same 1000pc quantity.