security screws, nails, socket set screws-cup point, combo screw, din7995 assembled with washers, special sems, drywall screws, phil/ slot side walk screws, special screws with thread in triangular shape, csk sq drive #2 chipboard 4 ribs coarse thread, thumb screws with shoulder and without shoulder, square drive deck screws-bugle head, type 17 cutting point, screws with high thread and low thread combined together, special screws with thread angle 30 degree and root in "v" shape, hex head self tapping screws 304 s/s hgih tensile, torsion and hardness, chipboard screws, wood screws-pillips and slotted, self-drilling screws, special-coating screws, coarse (deep) thread screws, special window screws, head painted screws, none drive screws round head T-U