Screws & Washers Assembled (SEMS) are suitable for industrial machinery assembly, electronic parts industry, NB industry and machinery industry and are mainly designed for facilitating the screws locking and screws loosing.
- Head type: Hexagon Head, Hexagon Flange Head, Flat Countersunk Head, Pan Head, Binding Head, Flat Round Head, Round Head, Flat Fillister Head…etc, depending on the needs of users for different places.
- Recess type: Slot and Phillip (Cross).
- Material: Iron, Carbon Steel, Alloy Steel, Aluminum, Titanium, Copper…etc.
- Surface: Zinc, Chromium, Trivalent Chromium, DACROTIZING, Tin, Environmental Plating…etc.
- Size: M1- M14