Self Tapping Screws
Stainless Steel Self Tapping Screws Pan Head Phillips Fine Thread For Electronics Enclosure Assembly
How to use self tapping screws – a quick guide
Step 1 Choose the right material
- Soft materials (wood, plastic) – Coarse thread self tapping screws. They bite fast and won’t crack the material.
- Thin metal sheet – Fine thread self tapping screws. More threads per inch = stronger hold.
- Outdoor or wet areas – Stainless steel or galvanized. Rust protection.
- Electronics & decorative – Brass. Non‑magnetic, looks good.
Step 2 Pick the head shape
- Flat head – Sits flush. Ideal for finished surfaces (furniture, panels).
- Wafer head – Low profile, wide clamping. Great for pocket holes and thin sheet metal.
- Pan head – Universal choice. Works for most general assembly.
- Hex head – Use a wrench for higher torque. Good for metal framing.
Step 3 Pilot hole or not?
- Wood – Pilot hole optional for softwood, recommended for hardwood to avoid splitting.
- Metal – Always drill a pilot hole (slightly smaller than screw diameter).
- Plastic – Pilot hole needed. Too small = cracks, too large = no grip.
Three common mistakes (and how to avoid them)
| Mistake | Why it happens | Solution |
|---|---|---|
| Screw won’t go in | Pilot hole too small or material too hard | Drill a larger pilot hole or use a self drilling screw |
| Material cracks | No pilot hole in plastic or hardwood | Always pre‑drill for hard/brittle materials |
| Stripped head | Using wrong driver type or too much torque | Use correct Phillips or Torx bit; start slow |
Which self tapping screw for your job?
| Your material | Recommended screw type |
|---|---|
| Thin steel sheet (0.5‑1.5mm) | Fine thread, pan head, stainless steel |
| Wood (soft) | Coarse thread, flat head, zinc plated |
| Plastic enclosure | Wafer head, fine thread, brass or stainless |
| Trailer flooring | Hex head, self tapping, heavy duty galvanized |
| License plate | Flat head, one‑way security or Phillips, stainless |
Materials we offer
- 304 stainless steel – rust proof, outdoor use
- 316 stainless steel – marine grade, salt water
- Brass – non‑magnetic, decorative
- Zinc plated carbon steel – cost effective, light outdoor
- Black oxide – matte finish, indoor use
- Aluminium – lightweight, non‑magnetic
Sizes & Strength
- Metric M2, M3, M4, M5, M6. Lengths 6–50mm. Inch sizes available.
- Strength grades: 4.8, 6.8, 8.8, 10.9 & 12.9.
Professional Use
Electronics enclosures, wood furniture, trailer floors, plastic junction boxes, sheet metal ducts, car interior trim, signs, and general factory assembly.
Quality Assurance
ISO 9001 and ISO 10012 certified. Every batch inspected – thread gauging, hardness test.
About YH Fastener
Since 1998. We make self tapping screws, machine screws, shoulder screws, security screws, and custom fasteners. Factory direct. Ship to 60+ countries.
Key Features Summary
- Cut their own thread – no pre‑tapping needed
- Flat head, wafer head, pan head, hex head styles
- Fine thread for thin metal, coarse thread for wood/plastic
- 304 stainless, 316 stainless, brass, zinc plated, black oxide, aluminium
- Metric M2 to M6, Grade 4.8 to 12.9
- Ideal for electronics, wood furniture, trailer flooring, plastic enclosures
Product Specifications
Send us your drawing or sample. We’ll respond within 24 hours with a competitive price.
| Attribute | Details |
|---|---|
| Screw Type | Self Tapping Screws |
| Head Styles | Flat / Wafer / Pan / Hex |
| Drive Types | Phillips / Slotted / Hex / Torx |
| Thread | Fine (thin metal) / Coarse (wood, plastic) |
| Materials | 304 Stainless Steel, 316 Stainless Steel, Brass, Zinc Plated Carbon Steel, Black Oxide, Aluminium |
| Size | M2 M3 M4 M5 M6, Length 6mm to 50mm |
| Strength | Grade 4.8 / 6.8 / 8.8 / 10.9 / 12.9 |
| Typical Use | Metal, Wood, Plastic, Electronics, Furniture, Trailer |