Micro Thin-Head Phillips Machine Screws are selected when an assembly calls for threaded assemblies where the head drive and seating style matter. This application guide to the Trade series (micro machine screws) type covers concrete end-uses, the specification checklist, correct installation, and where an alternative fastener performs better. Stocked across roughly M1.4 to M2, they cover light-duty and instrument-scale work.
Typical Applications for Micro Thin-Head Phillips Machine Screws
The most common settings where these are specified:
- Thin electronics: The 0.2 mm head thickness leaves clearance above miniature shields.
- Sensors and optics: Low-profile Phillips hardware fits around lenses and adjustment mechanisms.
- Compact mechanisms: Small heads secure covers where counterboring is not available.
- Precision service: Short micro screws replace damaged hardware without adding head height.
How to Specify Micro Thin-Head Phillips Machine Screws for Your Application
- Size: Match the nominal size to the mating thread or hole. This product spans M1.4–M2; check the full table below for the exact dimensions of each size.
- Drive & head: Pick the drive (socket, cross, slot) and head style for the tool access and seating surface; a recessed drive resists cam-out under power tools.
- Environment: For damp, coastal or chemical exposure prefer A4/316 stainless or a suitable coating; indoors, plated steel or A2 is usually sufficient.
- Standard: This product is supplied to Trade series (micro machine screws). Quoting the standard on your order guarantees interchangeable dimensions between suppliers.
Installation & Assembly Practice
- Match the driver exactly to the recess (PH ≠ PZ; hex key sizes per ISO 2936) and keep the tool axial — side load is the main cause of stripped drives.
- In tapped holes, engage a thread length of at least 1× the nominal diameter in steel, 2× in aluminum.
- Set power tools to a torque that seats the head without embedding it into the mating surface.
Common Selection Mistakes with Micro Thin-Head Phillips Machine Screws
- Under-sizing the drive for the installation torque — a small recess at high torque strips before the screw is seated.
- Using a countersunk head in thin sheet where the countersink removes most of the load-bearing material.
- Specifying stainless in high-strength duty: A2-70 is roughly class 7 steel, not a 10.9 substitute.
Where Micro Thin-Head Phillips Machine Screws Are Not the Right Choice
Not for high-preload structural joints (use a property-class bolt and nut), and not in thin sheet where a self-drilling or self-tapping type suits better.
Custom manufacturing · Made to drawing
Need a micro thin-head phillips machine screws outside the standard range?
Head form and drive can be specified to the assembly rather than to a standard: a larger bearing face, a security drive, or a socket sized for the tool already on the bench. Made by cold heading or warm forging.
Minimum order from 2,000 pieces; samples within 7 days of drawing approval.








