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A2-70 304 Stainless Steel Phillips Wafer Head Screws M1.4–M6 Ultra Thin Super Low Flat Head Bolts
A2-70 304 Stainless Steel Phillips Wafer Head Screws M1.4–M6 Ultra Thin Super Low Flat Head Bolts
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A2-70 304 Stainless Steel Phillips Wafer Head Screws M1.4–M6 — Ultra Thin Super Low Flat Head
A2-70 304 stainless steel Phillips wafer head screws offer the widest size range available — from M1.4 miniature screws for precision instruments to M6 for light mechanical assembly — all with an ultra-thin, super low flat head profile. The large-diameter wafer head distributes clamping load in thin materials while the stainless steel construction provides corrosion resistance for electronics, medical devices, and outdoor equipment.
Key Specifications
| Parameter | Value |
|---|---|
| Material | 304 Stainless Steel |
| Grade | A2-70 |
| Drive | Phillips (cross head) |
| Head Style | Wafer head (ultra-thin super low flat) |
| Size Range | M1.4, M1.6, M2, M2.5, M3, M4, M5, M6 |
| Thread Type | Machine thread (metric ISO) |
| Standard | GB / CM series |
Why Choose A2-70 304 SS Wafer Head Screws?
- Ultra-wide size range M1.4–M6 — covers miniature precision instruments (M1.4, M1.6) through standard electronics assembly (M3–M6) in a single product family
- Ultra-thin wafer head — lowest possible head profile; fits inside slim laptop chassis, precision instruments, and tight enclosures
- Large head diameter — prevents pull-through in thin plastic, PCB laminates, and sheet metal
- A2-70 304 stainless — corrosion-resistant; suitable for electronics, medical devices, outdoor equipment, and humid environments
- Phillips drive — compatible with all standard precision screwdrivers from #000 to #2
Typical Applications
- Precision instrument and optical equipment assembly (M1.4, M1.6, M2)
- Laptop and notebook chassis repair (M2, M2.5, M3)
- PCB mounting and electronics enclosure assembly (M2–M4)
- Camera body and lens assembly (M1.4–M2.5)
- Wearable device and smartwatch assembly (M1.4, M1.6)
- Medical device and laboratory instrument assembly (M2–M4)
Compatible With
- Phillips screwdrivers: #000 (M1.4–M1.6), #00 (M2–M2.5), #0 (M2.5–M3), #1 (M3–M4), #2 (M5–M6)
- Pre-tapped holes or hex nuts M1.4–M6
- PCB mounting holes: standard clearance drill sizes per ISO 273
Package Contents
- Wafer head screws in selected size, length, and quantity (per variant)
Frequently Asked Questions
- Q: What is the head diameter of a wafer head screw compared to a pan head?
- A: Wafer head screws have a significantly larger head diameter than pan head screws of the same thread size, but a much lower head height. For example, an M3 wafer head has a head diameter of approximately 9mm vs 5.5mm for a pan head, but a head height of only 0.8mm vs 2.4mm for a pan head.
- Q: Do these require a pre-tapped hole?
- A: Yes. These are machine thread screws and require a pre-tapped hole or a nut. They are not self-tapping.
- Q: What is the smallest size available?
- A: The smallest size is M1.4, suitable for precision instruments, camera assemblies, and miniature electronics. Use a #000 Phillips screwdriver for M1.4 and M1.6 screws.
