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SEMS Screw: Internal Tooth, M3x0.50 Thread Size, 4 mm Lg, Stainless Steel, Passivated - Machine Screws with Internal Tooth Lock Washers
SEMSMachine Screws with Internal Tooth Lock Washers

SEMS Screw: Internal Tooth, M3x0.50 Thread Size, 4 mm Lg, Stainless Steel, Passivated

The SEMS Screw: Internal Tooth (SKU 849C21, MPN 1-MPI-3-4) is a machine screw with an integrated internal tooth lock washer, featuring an M3x0.50 thread size, 4 mm length, stainless steel construction with passivated…

SKU 3G-OTH-532139

Brand
SEMS
Item
Screw: Internal Tooth, M3x0.50 Thread Size, 4 mm Lg, Stainless Steel, Passivated
Category
Machine Screws with Internal Tooth Lock Washers
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Technical Specifications

SEMS
Manufacturer Part Number
1-MPI-3-4
Type
M3x0.50 Thread Size, Stainless Steel, Passivated, Pan, 25 PK
Lg
4 mm
Drive Size
#1
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SEMS Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SEMS Screw: Internal Tooth (SKU 849C21, MPN 1-MPI-3-4) is a machine screw with an integrated internal tooth lock washer, featuring an M3x0.50 thread size, 4 mm length, stainless steel construction with passivated finish, pan head, #1 drive size, and supplied in a 25-piece pack.

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 to fasten components while resisting loosening from vibration. The integrated washer bites into the mating surface, making it ideal for electrical grounding, panel assembly, and general industrial fastening applications where a secure, permanent hold is required.

What are the specifications of the SEMS screw M3x0.50 4 mm?

This SEMS screw has an M3x0.50 thread size, 4 mm length, stainless steel construction with a passivated finish, pan head, and #1 drive size. It comes in a 25-piece pack. The integrated internal tooth lock washer provides vibration resistance. The manufacturer part number is 1-MPI-3-4.

Where to buy SEMS screws with internal tooth lock washer worldwide?

3G Electric supplies SEMS screws with internal tooth lock washers worldwide. As a global industrial solutions provider, we handle full logistics, customs clearance, and delivery to your location. Contact us to source this SEMS screw (SKU 849C21) or other fasteners from brands like SEMS for your procurement needs.

How to install a SEMS screw with internal tooth lock washer?

To install a SEMS screw with an internal tooth lock washer, drive it into a tapped hole or nut using a #1 drive tool. The integrated washer will compress and its teeth will bite into the surface, preventing loosening. Avoid over-torquing, as this can damage the teeth or strip the threads. Use standard torque values for M3 stainless steel fasteners.

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.

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