M3 × 30mm Nut Bolts and Washers (5 PCS)

The M3 × 30mm Nut Bolts and Washers (5 PCS) set is a reliable fastening solution designed for securely assembling mechanical, electronic, and DIY projects. Each pack includes 5 M3 bolts (30mm length), matching nuts, and flat washers, providing everything needed for strong, stable, and long-lasting connections in a variety of applications.

Manufactured from high-quality metal, these fasteners offer excellent mechanical strength, durability, and corrosion resistance, making them suitable for both indoor and light industrial use. The precision-machined M3 metric thread ensures a secure fit and smooth installation, while the 30mm bolt length makes the set ideal for fastening components with greater thickness or multiple layers.

The included flat washers help distribute the tightening force evenly across the mounting surface, reducing the risk of surface damage, preventing loosening due to vibration, and improving the overall stability of the assembly. This makes the set particularly useful for mounting printed circuit boards (PCBs), securing electronic modules, assembling robot chassis, fastening brackets, and constructing small mechanical structures.

The M3 × 30mm Nut Bolts and Washers are widely used in electronics projects, robotics, automation systems, 3D printer assemblies, Arduino projects, Raspberry Pi enclosures, DIY crafts, educational models, furniture repairs, and general maintenance work. Their combination of strength, precision, and ease of use makes them an essential hardware accessory for students, hobbyists, technicians, makers, and professional engineers.

Key Features

• Bolt Size: M3 × 30mm

• Pack of 5 complete sets

• Includes matching nuts and flat washers

• High-quality metal construction

• Precision metric threads for secure fastening

• Corrosion-resistant finish

• Strong, durable, and reusable

• Washers distribute load evenly

• Helps prevent loosening and surface damage

• Easy to install and remove

Applications

• PCB mounting

• Arduino and Raspberry Pi projects

• Robotics and automation

• 3D printer assembly

• Electronic enclosures

• Mechanical assemblies

• DIY electronics projects

• Educational and STEM projects

• Prototype construction

• General repairs and maintenance

Benefits

• Strong and reliable fastening

• Improved stability with flat washers

• Resistant to corrosion and wear

• Suitable for repeated assembly and disassembly

• Easy installation using standard tools

• Versatile for electronic and mechanical applications

• Ideal for hobbyists, students, and professionals

Technical Specifications

• Product Type: Nut, Bolt, and Washer Set

• Bolt Size: M3 × 30mm

• Thread Type: Metric M3

• Material: Metal

• Finish: Corrosion-resistant

• Quantity: 5 Sets (Bolt + Nut + Washer)

Package Includes

• 5 × M3 × 30mm Bolts

• 5 × M3 Nuts

• 5 × M3 Flat Washers