Yuhuang is the phillips drive sems indented hex washer head screws manufacturer. This screw has flat washer and spring lock washer. SEMS screws combine two separate parts into one pre-assembled, low cost fastener. With washers under the head, SEMS screws are fast, permanent, and easily adaptable to many applications.
SEMs typically come with some form of lockwasher to preventslippage once the screw is firmly secured. Two popular choices include internal-tooth and external-tooth lockwashers. Internal-tooth SEMs have teeth have ring the inside diameter of the lockwasher to bite into the substrate and hold the washer in place, while external-tooth SEMs perform the same task with teeth extending from the outside diameter of the washer.
Yuhuang- Manufacturer, supplier and exporter of screws. Yuhuang offers a wide selection of specialized screws. Whether its indoor or outdoor applications, hardwoods or softwoods. Including machine screw, self tapping screws, captive screw, sealing screws, set screw, thumb screw, sems screw, brass screws, stainless steel screws, security screws and more. Yuhuang is well known for the capabilities to manufacture custom screws. Our highly skilled team will work closely with customers to provide solutions.
Indented hex washer head screws | Catalog | Sems screw |
| Material | Carton steel, stainless steel, brass and more | |
| Finish | Zinc plated or as requested | |
| Size | M1-M12mm | |
| Head Drive | As custom request | |
| Drive | Phillips, torx, six lobe, slot, pozidriv | |
| MOQ | 10000pcs | |
| Quality control | Click here see screw quality inspection |
| Sems screw | Brass screws | Pins | Set screw | Self tapping screws |
| Machine screw | Captive screw | Sealing screw | Security screws | Thumb screw | Wrench |
Yuhuang is a leading manufacturer of screws and fasteners with a history of over 20 years. Yuhuang is well known for capabilities to manufacture custom screws. Our highly skilled team will work closely with customers to provide solutions.
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