SEMS Screw: External Tooth, M5x0.80 Thread Size, 20 mm Lg, Stainless Steel, Passivated
The SEMS Screw: External Tooth (SKU 849AT4, MPN 1-MPE-5-20) is a machine screw with an integrated external tooth lock washer, featuring an M5x0.80 thread, 20 mm length, stainless steel construction with passivated…
SKU 3G-OTH-528623
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Product Description
The SEMS Screw: External Tooth (SKU 849AT4, MPN 1-MPE-5-20) is a machine screw with an integrated external tooth lock washer, featuring an M5x0.80 thread, 20 mm length, stainless steel construction with passivated finish, and a pan head with #2 drive size, supplied in a 10-pack.
Supplied to the Philippines — compatible with 60 Hz installations. DHL Express delivery to Manila, Quezon City, Cebu, customs and duties handled door-to-door.
Frequently Asked Questions
What is a SEMS screw with external tooth lock washer used for?
A SEMS screw with an external tooth lock washer is used to fasten components while resisting loosening from vibration. The integrated washer bites into the mating surface, making it ideal for industrial assemblies in machinery, electrical panels, and automotive applications where a secure, permanent joint is required.
What are the specifications of the SEMS screw M5x0.80 20 mm?
This SEMS screw has an M5x0.80 thread, 20 mm length, stainless steel construction with passivated finish, pan head, and #2 drive size. It includes an integrated external tooth lock washer and is supplied in a 10-pack. The manufacturer part number is 1-MPE-5-20.
Where to buy SEMS screws with external tooth lock washer worldwide?
3G Electric supplies SEMS screws with external tooth lock washer worldwide. As a global industrial solutions provider, we handle full logistics and customs clearance to deliver genuine fasteners like the SEMS M5x0.80 20 mm (SKU 849AT4) to any location. Contact us for sourcing and delivery.
How to select the correct SEMS screw for an assembly?
To select the correct SEMS screw, match thread size (e.g., M5x0.80), length (20 mm), head type (pan), and drive size (#2) to your application. Consider material compatibility—stainless steel with passivated finish resists corrosion. The integrated external tooth lock washer eliminates separate washer handling, simplifying installation.
SEMS Products
3G Electric supplies SEMS machine screws with external tooth lock washers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









