M3 Socket Head Cap Screw is a high strength machine screw designed for precision fastening in electronics, mechanical assemblies, 3D printers, CNC machines, robotics projects, and industrial equipment. Manufactured from Grade 12.9 alloy steel with a durable black oxide finish, this hex socket head screw provides excellent strength, corrosion resistance, and reliable fastening performance.

The M3 hex socket cap screw features a standard metric coarse thread with 0.5mm pitch, making it compatible with most metric threaded components used in electronics, machinery, DIY projects, and engineering assemblies. The socket head design allows tightening with a hex Allen key, providing higher torque and secure fastening compared to standard screws.

These M3 machine screws are widely used in 3D printers, laser engravers, drones, robotics systems, computer hardware, DIY electronics, and mechanical structures. BDTronics supplies high-quality M3 socket head cap screws in Bangladesh for electronics repair, hardware assembly, and engineering projects.

Available sizes include M3x5, M3x10, M3x15, M3x20, and M3x25, allowing users to choose the correct length depending on assembly requirements.

Features:

• High strength M3 socket head cap screws

• Standard metric coarse thread design

• Strong Grade 12.9 alloy steel construction

• Black oxide surface finish for corrosion resistance

• Hex socket design for secure tightening

• Compatible with 2.5mm Allen key

• Precision threaded machine screw

• Suitable for electronics and mechanical assembly

• Durable fastening for industrial and DIY applications

• Ideal for 3D printer and CNC machine assembly

• Strong clamping force for reliable mechanical connections

• Accurate thread machining for smooth installation

BDTronics supplies precision machine screws for electronics, engineering, and hardware projects in Bangladesh.

Applications:

• 3D printer frame assembly

• CNC machine parts assembly

• Laser engraver machine construction

• Robotics and automation projects

• Electronics enclosure fastening

• Drone frame assembly

• Mechanical equipment repair

• Computer hardware mounting

• DIY engineering projects

• Industrial machine fastening

These M3 Allen bolts are commonly used in precision mechanical systems where strong and reliable fastening is required.

How To Use:

• Select the correct screw length based on assembly thickness

• Align the screw with the threaded hole or nut

• Insert the screw through the mounting hole

• Use a 2.5mm hex Allen key to tighten the screw

• Tighten firmly without overtightening

• Ensure proper alignment for secure fastening

BDTronics offers M3 hex socket machine screws suitable for electronics assembly, machinery, and DIY projects across Bangladesh.

Available Sizes:

• M3 × 5 mm

• M3 × 10 mm

• M3 × 15 mm

• M3 × 20 mm

• M3 × 25 mm

Screw length is measured from the underside of the screw head.

Package Includes:

• 1 × M3 Socket Head Allen Bolt

Specifications:

• Screw Type: Socket Head Cap Screw

• Thread Size: M3

• Thread Pitch: 0.5 mm

• Thread Diameter: 3 mm

• Head Type: Hex Socket Head

• Allen Key Size: 2.5 mm

• Head Diameter: 5.5 mm

• Head Height: 3 mm

• Material: Grade 12.9 Alloy Steel

• Surface Finish: Black Oxide

• Length Options: M3×5, M3×10, M3×15, M3×20, M3×25

• Measurement Method: Length measured from underside of head

• Fastener Type: Machine Screw

m3 socket head cap screw, m3 allen bolt, m3 hex socket screw, m3 machine screw 12.9 grade, m3 carbon steel bolt, m3 black oxide screw, m3 hex bolt machine screw, m3 socket cap screw bangladesh, m3 allen screw price bangladesh, m3 bolt for 3d printer, m3 screw for cnc machine, m3 screw for electronics assembly, m3 hex socket screw 12.9 alloy steel, m3 precision machine screw, m3 engineering bolt, m3 fastener supplier bangladesh, m3 hex screw bdtronics bangladesh, buy m3 allen bolt bdtronics, m3 machine screw bdtronics, m3 fastener hardware bdtronics bangladesh