This is a pack of 1000 Delta PT thread forming Torx Plus screws with a pan heads and a 20mm length, a 3.5mm diameter and a drive size of 15IP. These screws are made of low carbon steel and have a zinc and clear chromate plating applied to them.
Features & Benefits:
Optimum thread pitch design allows improved plastic flow characteristics
Improved torsional and tensile strength from larger shear area
Can achieve higher clamp loads and seating torques