Screw M3×12, Phillips head, galvanized steel, 0.5 thread pitch

Screw M3×12 with a Phillips head, made from galvanized steel and featuring a 0.5 mm thread pitch. This standard metric fastener is intended for general-purpose fastening where an M3 thread is required and some corrosion protection from galvanization is beneficial. It fits M3 tapped holes and nuts and is commonly used in small mechanical assemblies, electronic housings and repair tasks that need a compact, reliable screw with a cross-recess drive.

Advantages

The galvanized steel construction provides basic corrosion resistance appropriate for indoor and mildly humid environments. The Phillips head allows for efficient torque application with standard cross-head screwdrivers and power drivers, reducing cam-out when used with the correct tool size. The 0.5 mm thread pitch is the standard for M3 screws, ensuring compatibility with M3 tapped holes and nuts and predictable engagement and load distribution in fine-thread applications.

Suitable for

• Fastening electronics enclosures and internal components
• Assembling small mechanical parts and housings
• Repair and maintenance of consumer devices and instruments
• Mounting brackets, panels and sheet metal with M3 threads

Key specifications

• Thread size: M3
• Length: 12 mm (excluding head)
• Head type: Phillips (cross-recess)
• Material: Galvanized steel
• Thread pitch: 0.5 mm
• Drive compatibility: Standard Philips screwdrivers and compatible power bits
• Surface finish: Zinc/galvanized coating for corrosion resistance

How to use

Select a compatible M3 threaded hole or nut and align the screw with the mating part. Use a suitably sized Phillips screwdriver or a matching driver bit in a power tool; apply steady, moderate torque to engage threads without stripping the head or damaging the mating threads. For thin sheet applications, consider using a backing nut or captive insert to distribute load. Do not overtighten—stop when the joint is secure and parts are seated to avoid thread damage or deformation of lightweight components.

Usage recommendations

For best results, use the screw with the correct Phillips driver size to minimize cam‑out. Avoid exposure to highly corrosive environments; for outdoor or marine applications consider stainless steel or specially coated fasteners. When assembling sensitive electronics, follow manufacturer torque specifications or use a torque-limiting driver to prevent damage to circuit boards and plastic parts.