SEMS Screw: External Tooth, M4x0.70 Thread Size, 8 mm Lg, Stainless Steel, Passivated

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.

This SEMS screw has an M4x0.70 thread size, 8 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-4-8.

3G Electric supplies SEMS screws worldwide, handling full logistics and customs clearance for global delivery. As a sourcing specialist across 14 industrial departments, we provide genuine fasteners like this M4x0.70 external tooth screw. Contact us for availability and lead time to your location.

Install a SEMS screw by driving it with a #2 drive tool until the external tooth washer contacts the mating surface. Tighten to the recommended torque for M4 stainless steel fasteners, typically 1.5–2.0 N·m. The integrated washer eliminates the need for a separate lock washer, simplifying assembly.