This junction box is ideal for Electric wire installations and has standard sized threads to enable modern detector bases and terminal plates to be installed.
90-Degree elbow for connecting two pipes at an angle.
PPR for corrosion resistance, high strength, and less weight than fittings made from metal.
Smooth interior finish for reduced friction and material buildup.
It obtain the high hardness and high torque to be more durable after the overall quenching.
The head of screwdriver is more proper for the screw & obtain the maximal torsion after the precisely process.
The material of shaft: chrome vanadium Nickel steel.