SEMS Screw: External Tooth, M5x0.80 Thread Size, 8 mm Lg, Stainless Steel, Passivated
The SEMS Screw: External Tooth (MPN 1-MPE-5-8) is a machine screw with an integrated external tooth lock washer, featuring an M5x0.80 thread size, 8 mm length, stainless steel construction with passivated finish, and…
SKU 3G-OTH-528621
Need installation or engineering help?
Ask a question
Product Description
The SEMS Screw: External Tooth (MPN 1-MPE-5-8) is a machine screw with an integrated external tooth lock washer, featuring an M5x0.80 thread size, 8 mm length, stainless steel construction with passivated finish, and a pan head with #2 drive size, supplied in a 10-pack.
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 hold is required.
What are the specifications of the SEMS screw M5x0.80 8 mm?
This SEMS screw has an M5x0.80 thread size, 8 mm length, stainless steel construction with passivated finish, pan head, and #2 drive size. It comes in a 10-pack with manufacturer part number 1-MPE-5-8. The external tooth lock washer is pre-assembled for convenience.
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 to your facility. Contact us for pricing and lead time on the M5x0.80 8 mm stainless steel passivated pan head screw (MPN 1-MPE-5-8).
How to select the correct SEMS screw size for an assembly?
To select the correct SEMS screw, match the thread size (e.g., M5x0.80) and length (8 mm) to the hole depth and material thickness. Ensure the drive size (#2) fits your tool. The external tooth washer is ideal for soft or uneven surfaces. For vibration-prone applications, stainless steel passivated finish offers corrosion resistance.
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.









