For threaded concrete iron, each fin must be neat and orderly. The size of the fin must be the same and relatively connected round. It is possible to have elongated ribs on both sides that are parallel to the stem axis. The transverse fin must form an angle of not less than 45 degrees from the stem axis.
Which is better or stronger, between plain iron and screw concrete iron, certainly stronger. Because the screw has a minimum compressive resistance of 400 Mpa, while the plain one only has a resistance to a minimum pressure of 240 Mpa.
The following types of screw concrete iron products that we sell:
SNI Threaded Concrete Iron
Plain Concrete Iron SNI
The brands we sell / distribute:
Krakatau Steel
Gunung Garuda
US
Deli
Import