SEMS Screw: External Tooth, M4x0.70 Thread Size, 25 mm Lg, Stainless Steel, Passivated
The SEMS Screw: External Tooth (SKU 849AR9) is a machine screw with an integrated external tooth lock washer, featuring an M4x0.70 thread size, 25 mm length, stainless steel construction with passivated finish, pan…
SKU 3G-OTH-528620
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Product Description
The SEMS Screw: External Tooth (SKU 849AR9) is a machine screw with an integrated external tooth lock washer, featuring an M4x0.70 thread size, 25 mm length, stainless steel construction with passivated finish, pan head, #2 drive size, and supplied in a 5-pack (MPN 1-MPE-4-25).
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 hold is required.
What are the specifications of the SEMS screw M4x0.70 25 mm?
This SEMS screw has an M4x0.70 thread size, 25 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 5-pack (MPN 1-MPE-4-25).
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, customs clearance, and delivery to your site. Contact us to order the M4x0.70 25 mm stainless steel passivated pan head screw (SKU 849AR9) for your application.
How to select the correct SEMS screw size for an assembly?
To select the correct SEMS screw, match the thread size (e.g., M4x0.70) and length (e.g., 25 mm) to the hole depth and material thickness. Ensure the drive size (#2) fits your tool. The external tooth washer provides vibration resistance; choose stainless steel passivated for corrosion resistance in harsh environments.
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.









