SEMS Screw: Internal Tooth, M3x0.50 Thread Size, 8 mm Lg, Stainless Steel, Passivated
The SEMS Screw: Internal Tooth (SKU 849C23, MPN 1-MPI-3-8) is a machine screw with an integrated internal tooth lock washer, featuring an M3x0.50 thread size, 8 mm length, stainless steel construction with passivated…
SKU 3G-OTH-532097
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Product Description
The SEMS Screw: Internal Tooth (SKU 849C23, MPN 1-MPI-3-8) is a machine screw with an integrated internal tooth lock washer, featuring an M3x0.50 thread size, 8 mm length, stainless steel construction with passivated finish, and a pan head. Supplied in a 25-piece pack with a #1 drive size, this fastener is designed for applications requiring a pre-assembled locking mechanism.
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 internal tooth lock washer used for?
A SEMS screw with an internal tooth lock washer is used in applications requiring a pre-assembled locking mechanism to prevent loosening from vibration. Common in machinery, electrical enclosures, and automotive assemblies, it combines a machine screw and washer in one unit for faster installation.
What are the specifications of the SEMS screw M3x0.50 8 mm?
This SEMS screw has an M3x0.50 thread size, 8 mm length, stainless steel construction with passivated finish, pan head, and #1 drive size. It comes in a 25-piece pack with manufacturer part number 1-MPI-3-8. The integrated internal tooth lock washer provides vibration resistance.
Where to buy SEMS screws with internal tooth lock washer worldwide?
3G Electric supplies SEMS screws with internal tooth lock washer worldwide. As a global industrial solutions provider, we handle logistics, customs, and delivery to your location. Contact us to order the SEMS screw M3x0.50 8 mm (SKU 849C23) or other fasteners from our extensive sourcing network.
How to select the right SEMS screw for an application?
To select the right SEMS screw, match thread size (e.g., M3x0.50), length (8 mm), head type (pan), and drive size (#1) to your assembly requirements. Consider material—stainless steel with passivated finish offers corrosion resistance. The integrated internal tooth lock washer eliminates separate washer handling and secures against vibration.
SEMS Products
3G Electric supplies SEMS machine screws with internal tooth lock washers. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.









