It is an environmentally friendly product that uses a chrome-free, highly corrosion-resistant metal surface treatment plow.
The screws are sticky due to special quenching.
A cross hole is used for the bit head to facilitate construction.
The screw head sinks neatly with a special flexible blade.
The flange suppresses burrs and hangnail.
Since we have obtained the Minister of Land, Infrastructure, Transport and Tourism certification, confirmation application is smooth. A screw that binds the structural face material and the frame material together. * Please perform the construction based on the determined construction procedure and construction management. Use a commercially available cross bit.