3.5 x 45 C2 Tongue-Fix Screw -ZYP 350 PCS

Reduced head for concealed countersinking
Plain shank for pulling the two substrates together without manual clamping
Coated with a high-molecular polymer lubricant that reduces the insertion torque by up to 52% and increases rust protection up to 20 times longer than a standard zinc plating
Dual angle thread gives an ultimate performance and an exceptionally high pull-out resistance
Patented twin cut technology for rapid "pick-up" and reduces timber splitting