Metric flat steel washer M4 -RPMV040

🔩 Precision metric flat steel washer M4 for reliable fastening

The metric flat steel washer M4 is designed for applications where small fasteners are used and high accuracy is required. Common in electronics, light machinery, and compact assemblies, this washer protects surfaces, distributes load, and enhances the durability of bolted joints.

Manufactured to DIN 125-A standards, this unbranded M4 washer is a cost-effective, high-quality solution for industrial users, OEMs, and maintenance professionals.

✅ Key features

• M4 standard size
  Inner diameter of 4.3 mm (approx. 0.17 in), perfect for 4 mm bolts and screws.

• Flat washer form A
  Provides a clean, even load distribution to protect surfaces and improve torque control.

• Cold-rolled steel construction
  Offers excellent tensile strength and resistance to wear in small-scale mechanical environments.

• Unbranded = value
  Same reliability as branded washers, optimized for bulk usage and cost-sensitive applications.

🛠️ Common uses

The metric flat steel washer M4 is frequently used in:

• Electronics and enclosures: Fastening circuit boards, heat sinks, and terminal blocks.

• Light mechanical assembly: Securing housings, gears, and actuator mounts.

• Model building and prototyping: Preferred in robotics, hobby kits, and small hardware projects.

• DIY and repair: A basic component in any general-purpose metric washer set.

💡 Why choose this washer?

Using a metric flat steel washer prevents hardware from embedding into surfaces, especially when tightening on plastic or aluminum. This M4 model is ideal for applications where space is limited, but reliability cannot be compromised.

Unbranded doesn’t mean unreliable — it means more savings for you with the same performance.