Description
550 Stainless Steel Wafer Head Self Drilling Screws are premium self-drilling fasteners manufactured from specially formulated hardened martensitic 550 stainless steel, combining excellent drilling performance with corrosion resistance equivalent to 304 stainless steel.
The low-profile wafer head provides a neat, flush appearance while delivering strong clamping force for metal-to-metal applications. These screws are ideal for marine environments, highly corrosive locations and stainless steel sheet fixing without the need for pre-drilling.
Designed for professional tradespeople, these screws offer excellent drilling performance, high mechanical strength and long-term durability in demanding environments.
Features
- Hardened 550 martensitic stainless steel
- Corrosion resistance equivalent to 304 stainless steel
- Low-profile wafer head
- Self-drilling point eliminates pre-drilling
- Square Drive #2 for positive engagement
- Fast metal-to-metal installation
- Excellent drilling performance
- High tensile and shear strength
- Ideal for corrosive environments
- Professional trade quality
Suitable For
- Metal-to-metal fixing
- Stainless steel sheeting
- Marine applications
- Coastal construction
- Industrial environments
- Commercial buildings
- Steel fabrication
- Sheet metal installation
- Architectural steelwork
- General metal fixing
Applications
- Marine environments
- Areas with high pollution levels
- Applications requiring enhanced corrosion resistance
- General metal-to-metal fixing
- Stainless steel sheeting without pre-drilling
Specifications
| Property | Specification |
|---|---|
| Product Type | Self Drilling Screw |
| Head Style | Wafer Head |
| Material | 550 Hardened Martensitic Stainless Steel |
| Finish | 550 Stainless Steel |
| Gauge | 10 |
| Drive Type | Square #2 |
| Drill Point Length | 6.5mm |
| Head Diameter | 9.3mm |
| Head Height | 1.8mm |
Performance
Pullout Values
| Plate Material | Thickness | Working Load |
|---|---|---|
| G2 | 0.5mm | 200N |
| G450 | 1.5mm | 1550N |
| G450 | 2.9mm | 2400N |
Mechanical Properties
- Torsional Strength: 6.9 Nm
- Mean Tensile Strength: 15,050 N
- Mean Shear Strength: 9,000 N
- Characteristic Tensile Strength: 13,850 N
- Characteristic Shear Strength: 8,300 N
Available Sizes
| Part Number | Size |
|---|---|
| T55MSWQ1016016 | 10-16 x 16mm |
| T55MSWQ1016030 | 10-16 x 30mm |
| T55MSWQ1024022 | 10-24 x 22mm |
Why Choose 550 Stainless Wafer Head SDS Screws?
These premium self-drilling screws provide exceptional corrosion resistance, high mechanical strength and fast installation. The low-profile wafer head delivers a clean finished appearance while the hardened 550 stainless construction ensures long service life in demanding marine, industrial and architectural applications.
