Roofing Screw - KTX-Convex Head Screw
Tamper-Proof:
*A special tool (Convex Bit Holder) required to withdraw the screw
*Anti-Wobble
*A well-fitted connection between head and bit holder significantly reduces the wobbling and makes it easier to control the screw in the entire fastening process
Anti-Wear:
*A four convex arc design increases the contact area at the same time decreases the damage to any corner portion so at to protect the surface treatment of the head
Low-Profile:
*Reduce material and cost, less visible on top of the roof panel
No Indentation:
*Avoid the rainwater stored up, the cause of the rust
Strong Torque Transfer:
*More torque transferred in the fastening process
KTX-Convex Head Screw is a new screw design for roofing with low-profile and tamper-proof head. Special nut setter to go with it
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