304 Stainless Steel Machine Screws Pan Head Phillips Metric M3 M4 M5 Class 8.8 For PCB Electronics Enclosure Assembly

Unlike wood screws that bite into material or self tapping screws that cut their own threads, machine screws need a partner. They are designed to go into a pre tapped hole or thread into a nut. This gives you a reliable connection that you can take apart and put back together many times without damaging the threads.

Any time you have a metal part that already has threads cut into it. Think of electronics enclosures with threaded holes. Or when you use a nut on the other side of a bracket. Or when you are assembling machinery where precision matters.

Metric from M2 up to M6. Lengths from 4mm to 100mm. Inch sizes also available. Need something outside this range? We can make custom sizes for you.

We stock the ones people ask for most. Pan head for general assembly. Flat head when you need the screw to sit flush with the surface. Button head for a lower profile look. Truss head for spreading pressure over plastic or soft materials. Round head for simple quick jobs.

Phillips cross drive is on most of our stock. Everyone has a Phillips screwdriver. Slotted drive for traditional applications. Hex socket drive when you need more torque without stripping the head.

304 stainless steel. This is our best seller. Does not rust. Good for outdoor and wet areas.

Zinc plated carbon steel. Strong and affordable. The zinc coating keeps rust away for indoor and light outdoor use.

Brass. Looks good. Does not rust. Not magnetic. Popular for electrical panels and decorative work.

Aluminum. Very light. Does not rust. Good when weight is a concern.

Class 4.8 for everyday light duty. Class 6.8 for medium strength. Class 8.8 for heavier work. Class 10.9 and 12.9 for high strength applications where you need serious clamping force.

We ship machine screws to customers making electronics enclosures. To furniture factories assembling cabinets and desks. To repair shops fixing appliances. To machine builders putting together industrial equipment. To automotive parts suppliers. To medical device manufacturers.

Yes. Send us your drawing. Tell us what head style, what material, what length, what thread. We will make exactly what you need. OEM orders are welcome.

We check threads on every batch. We measure dimensions. We test hardness. Our ISO 9001 and ISO 10012 systems keep everything consistent. You get the same quality every time you order.

Factory direct pricing. We ship by sea, air, or express courier. We ship to over 60 countries. Tell us where you are and we will figure out the best way.

YH Fastener has been making precision screws since 1998. We are in Guangdong, China. We make machine screws, self tapping screws, shoulder screws, captive screws, and custom fasteners. ISO 9001 and ISO 10012 certified. Every batch inspected. Factory direct. Ship to 60+ countries.