(1) the combination screw generally contains a screw with a spring
washers with a flat mat, fastened together by thread rolling
combinations.
(2) combination of two screw generally contains a screw with a spring
(2) combination of two screw generally contains a screw with a spring
washers or with a flat pad or a tooth.
(3) the combination of the material of screw can choose iron or
(3) the combination of the material of screw can choose iron or
stainless steel.
(4) iron materials commonly used type 1010/1018/10 b21, well after the
(4) iron materials commonly used type 1010/1018/10 b21, well after the
heat treatment to remove hydrogen electroplating again, so that the
combination of hexagonal screw ball pad easy fracture.
(5) combination screw we usually use SUS304 stainless steel material.
(6) combination screw zinc plating color in general have green color,
(5) combination screw we usually use SUS304 stainless steel material.
(6) combination screw zinc plating color in general have green color,
green blue zinc, white zinc environmental protection, environmental
protection nickel, red color, white zinc, white nickel, etc.
