High Quality Custom Stainless Steel Phillips Pan Head Pre Assembled With Spring Flat Washer For Electronics Sems Screws
Hot selling product
Our sems screw features a precision engineered screw pre assembled with a captive washer in a single unit. Unlike traditional loose screw and washer combinations which require separate handling and often result in washer loss during assembly or disassembly our sems screw keeps the washer securely attached at all times.Contact us
This innovative design significantly reduces assembly time eliminates missing washer issues and ensures consistent clamping force across every application. The washer will not fall off during maintenance making these screws particularly suitable for equipment that requires regular servicing.
The one piece construction also simplifies inventory management since you only need to stock one component instead of separate screws and washers. Available with spring washer for anti vibration performance flat washer for pressure distribution or external tooth lock washer for maximum locking effect under dynamic loads.
Whether you need Phillips pan head for general assembly flat head countersunk for flush mounting hex head for high torque applications or socket head cap screw for limited space installations our sems screw family covers all your fastening needs.
Features
Screw and washer come as a single pre assembled unit eliminating the need for separate washer handling. This design reduces assembly time by up to 50 percent and prevents washer loss during production.
The washer remains securely on the screw even after removal. This feature is especially valuable for applications requiring frequent maintenance and service as the washer will not fall off or get lost.
Available with spring washer for anti vibration performance flat washer for even pressure distribution or external tooth lock washer for maximum locking effect under dynamic loads. Double washer combinations are also available upon request.
Choose from Phillips pan head for general assembly Phillips flat head countersunk for flush mounting hex head for high torque applications and socket head cap screw for limited space installations.
Offered in stainless steel 304 and 316 for corrosion resistance carbon steel grade 4.8 8.8 10.9 for high strength applications and alloy steel for heavy duty industrial use.
Uniform machine threads meet DIN 85 and ISO 7380 standards ensuring smooth driving consistent clamping force and reliable performance across all units.
Standard metric threads available from M2 to M8 covering most electronics automotive and industrial assembly needs. Custom sizes and non standard threads can be manufactured upon request.
Available in plain finish zinc plated yellow zinc plated black oxide and nickel plated to meet different corrosion resistance and appearance requirements.
All sems screws meet RoHS environmental standards making them suitable for electronics medical devices and other restricted material applications.
One sems screw replaces separate screw plus washer reducing component cost inventory complexity and assembly labor. This integrated design also simplifies supply chain management.
No special tools required. The pre assembled design works with standard screwdrivers or power tools allowing operators to install quickly without additional training.
100 percent thread gauging and dimensional inspection performed on each production batch. Hardness testing and salt spray testing available upon request.
We accept custom orders for non standard sizes special head marking specific washer combinations unique surface finishes and custom packaging.
When equipped with spring washer or external tooth lock washer the sems screw provides excellent resistance to loosening caused by vibration and dynamic loads.
Stock one part number instead of two. This simplifies warehouse management reduces tracking complexity and lowers the risk of mismatched screw and washer combinations.
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