Carbon Steel Hex Head Machine Screws - Zinc Plated, Coarse Thread, China Suppliers, Factory Bulk Wholesale for Industrial Equipment
Machine screws are different from wood screws or self tapping screws. They do not cut their own thread. Instead, they need a pre tapped hole or a nut to hold tight. This makes them perfect for metal to metal fastening where you need a strong, reliable joint that can be taken apart later.
You get consistent clamping force every time. The thread runs the full length of the screw from under the head to the tip. This full thread design lets you use the screw with different material thicknesses. You can also take them apart without damaging the threads.
The most common style. Works with any standard Phillips screwdriver. Good for general assembly work.
Has an 82 degree countersunk cone. When driven in, the head sits flush with the surface. Great for finished panels where appearance matters.
Works with a wrench or socket. You can get higher torque than a screwdriver. Good for applications that need a tight clamp.
Has a traditional straight line slot and a domed top. Simple and works for light to medium duty jobs.
Need something bigger or smaller? Just ask. Pick what fits your job — from light duty to heavy duty.
- Electronics enclosures & PCB mounting
- Home appliances & industrial equipment
- Automotive parts & precision instruments
- Switch plates & computer hardware
- Medical devices
- General machinery assembly
Every batch goes through thread gauging and dimensional checks. We test hardness too. Need a special head style or custom material? We can make it. Bulk pricing available. Factory direct shipping worldwide.
- Full thread from head to tip for consistent clamping
- Needs pre tapped hole or nut — does not self tap
- Phillips pan head, flat head, hex head, slotted round head
- Stainless steel, steel, brass, aluminium, bronze
- Metric M2 to M6 — Class 4.8 to 12.9
- Perfect for electronics, appliances, instruments & machinery







