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200pcs Stainless Steel Self-Tapping Screws — Round Washer Flat Head Phillips for Wood & Sheet Metal Fastener Set
200pcs Stainless Steel Self-Tapping Screws Round Washer Flat Head Phillips for Wood & Sheet Metal Fastener Set
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200pcs Stainless Steel Self-Tapping Screws — Round Washer Flat Head Phillips for Wood & Sheet Metal
200-piece stainless steel self-tapping screws with round washer (pan washer) head and Phillips cross drive for wood and sheet metal fastening. The integrated round washer head distributes clamping load over a larger area than standard pan head screws, preventing pull-through in thin sheet metal and soft wood. Stainless steel construction provides corrosion resistance for outdoor, marine, and humid environment applications.
Key Specifications
| Total Quantity | 200 pieces |
|---|---|
| Material | Stainless steel (304 A2) |
| Head Type | Round washer head (pan washer / SEMS-style) |
| Drive | Phillips (cross / PH2) |
| Thread Type | Self-tapping (AB / Type B) |
| Compatible Materials | Wood, MDF, plywood, thin sheet metal, plastic |
Why Choose Round Washer Head Self-Tapping Screws?
- Integrated round washer head — larger bearing surface than standard pan head; prevents pull-through in thin sheet metal and soft wood
- 304 stainless steel — corrosion-resistant for outdoor, coastal, and humid environment use; no rust staining
- Self-tapping thread — cuts its own thread in wood and thin sheet metal; no pre-tapping required
- Phillips drive — compatible with standard PH2 screwdrivers and power drivers
- 200pcs bulk pack — covers multiple sizes for workshop stock
Typical Applications
- Outdoor timber decking — deck board fastening to timber joists (stainless steel prevents rust staining on hardwood)
- Garden furniture — outdoor furniture assembly requiring corrosion resistance
- Marine and boat building — interior and exterior timber fastening in saltwater environments
- Roofing and cladding — thin sheet metal and corrugated panel fastening
- HVAC ductwork — sheet metal duct assembly
- General woodworking — cabinet, shelving, and furniture assembly
Global Application Coverage
Widely used across: Australia & New Zealand (hardwood decking, Merbau, Spotted Gum — stainless steel prevents tannin staining), UK & Europe (outdoor timber construction, EN 1995 Eurocode 5 compliant stainless steel fasteners), North America (pressure-treated lumber — stainless steel resists ACQ/CA treatment chemical corrosion), Southeast Asia (tropical hardwood and high-humidity environments), and Scandinavia (coastal and marine timber construction).
FAQ
Q: Can I use these in pressure-treated (ACQ/CA) lumber?
A: Yes. 304 stainless steel is recommended for pressure-treated lumber — ACQ and CA wood preservatives corrode standard zinc-plated and hot-dip galvanized screws. Stainless steel is the correct choice for treated timber in outdoor applications.
Q: What pilot hole size should I use in hardwood?
A: For hardwood, drill a pilot hole at 85–90% of the screw shank diameter to prevent splitting. For softwood and MDF, pilot holes are optional but recommended near board ends.
Package Contents
- 200 × stainless steel round washer flat head Phillips self-tapping screws (sizes per selected variant)
- ★Product Description
- ★About us
- ★Custom cable
200pcs Stainless Steel Self-Tapping Screws — Round Washer Flat Head Phillips for Wood & Sheet Metal
200-piece stainless steel self-tapping screws with round washer (pan washer) head and Phillips cross drive for wood and sheet metal fastening. The integrated round washer head distributes clamping load over a larger area than standard pan head screws, preventing pull-through in thin sheet metal and soft wood. Stainless steel construction provides corrosion resistance for outdoor, marine, and humid environment applications.
Key Specifications
| Total Quantity | 200 pieces |
|---|---|
| Material | Stainless steel (304 A2) |
| Head Type | Round washer head (pan washer / SEMS-style) |
| Drive | Phillips (cross / PH2) |
| Thread Type | Self-tapping (AB / Type B) |
| Compatible Materials | Wood, MDF, plywood, thin sheet metal, plastic |
Why Choose Round Washer Head Self-Tapping Screws?
- Integrated round washer head — larger bearing surface than standard pan head; prevents pull-through in thin sheet metal and soft wood
- 304 stainless steel — corrosion-resistant for outdoor, coastal, and humid environment use; no rust staining
- Self-tapping thread — cuts its own thread in wood and thin sheet metal; no pre-tapping required
- Phillips drive — compatible with standard PH2 screwdrivers and power drivers
- 200pcs bulk pack — covers multiple sizes for workshop stock
Typical Applications
- Outdoor timber decking — deck board fastening to timber joists (stainless steel prevents rust staining on hardwood)
- Garden furniture — outdoor furniture assembly requiring corrosion resistance
- Marine and boat building — interior and exterior timber fastening in saltwater environments
- Roofing and cladding — thin sheet metal and corrugated panel fastening
- HVAC ductwork — sheet metal duct assembly
- General woodworking — cabinet, shelving, and furniture assembly
Global Application Coverage
Widely used across: Australia & New Zealand (hardwood decking, Merbau, Spotted Gum — stainless steel prevents tannin staining), UK & Europe (outdoor timber construction, EN 1995 Eurocode 5 compliant stainless steel fasteners), North America (pressure-treated lumber — stainless steel resists ACQ/CA treatment chemical corrosion), Southeast Asia (tropical hardwood and high-humidity environments), and Scandinavia (coastal and marine timber construction).
FAQ
Q: Can I use these in pressure-treated (ACQ/CA) lumber?
A: Yes. 304 stainless steel is recommended for pressure-treated lumber — ACQ and CA wood preservatives corrode standard zinc-plated and hot-dip galvanized screws. Stainless steel is the correct choice for treated timber in outdoor applications.
Q: What pilot hole size should I use in hardwood?
A: For hardwood, drill a pilot hole at 85–90% of the screw shank diameter to prevent splitting. For softwood and MDF, pilot holes are optional but recommended near board ends.
Package Contents
- 200 × stainless steel round washer flat head Phillips self-tapping screws (sizes per selected variant)
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