The M4 Carbon Steel Phillips Ultra Thin Flat Head Screw is a high-quality fastener designed for precise, secure installations in electronics, laptops, computer hardware, DIY enclosures, 3D printed projects, and custom casings. Made from durable carbon steel with a clean black finish, this screw provides strong fastening performance while maintaining a low-profile appearance. The ultra-thin flat head design ensures perfect flush mounting on surfaces where clearance is tight or where a seamless finish is required. Available in multiple lengths including 3mm, 5mm, 8mm, 10mm, and 15mm, it supports a wide range of assembly needs for hobbyists, professionals, and repair technicians in Bangladesh. Ideal for general hardware use, prototyping, circuit board mounting, and small machine applications, this M4 screw ensures stability, reliable torque distribution, and long-term durability. Its Phillips drive head allows smooth tightening with standard tools, ensuring quick, controlled fastening without slipping.

Features:

• Carbon steel construction providing strong tensile strength

• Ultra thin flat head design for flush surface installation

• Smooth black finish suitable for electronics and enclosures

• Precision M4 (4mm) diameter for universal hardware compatibility

• Available lengths: 3mm, 5mm, 8mm, 10mm, 15mm (as selected)

• Phillips drive type for easy tightening with standard screwdrivers

• Ideal for laptops, computers, DIY casing, 3D printed projects

• Corrosion-resistant finish suitable for indoor applications

• Stable threading for reliable mechanical fastening

• Suitable for replacing damaged or worn screws in electronics

Specifications:

• Material: Carbon Steel

• Head Type: Ultra Thin Flat Head

• Diameter: 4mm (M4)

• Length: As selected (5mm/ 8mm/ 10mm/ 12mm/ 15mm)

• Drive Type: Phillips

• Color: Black

• Usage: Laptop repair, computer assembly, DIY enclosure, 3D printing projects

• Quantity: 1 piece

Applications

• Laptop and notebook internal assembly

• Computer case and hardware mounting

• 3D printed plastic casing and project boxes

• Custom electronics enclosure and prototyping

• Small machinery and device maintenance

• PCB mounting, bracket attachment, and module installation

• General DIY, engineering, and workshop use

How to Use

• Select the correct screw length suitable for your enclosure or hardware thickness

• Use a Phillips screwdriver compatible with the head size

• Insert the screw straight into the threaded hole or pre-drilled opening

• Apply controlled force to avoid stripping the head

• Ensure the flat head sits flush with the surface for a clean installation

Product Instructions

• Confirm M4 threading compatibility before installation

• Avoid overtightening to protect plastic casings or soft material enclosures

• Keep screws in a dry place to maintain finish quality

• Ideal for electronics: verify spacing and clearance before fastening

• Use appropriate washers if needed for specific mounting requirements

Package Includes

• 1 x Flat Head Phillips Screw

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