SJ-2006 (Sems Screw)

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Strong Johnny International is a professional sems screws manufacturer and provides a series of sems screws including sems screw with spring lock washer, flat washer, ext-tooth/int-tooth lock washer, square washer, conical washer, and wave washer.

The sems screw can be applied in any kinds of surface treatment. The sems screws are made of stainless steel material and all sizes are available.