Keszoox
Stainless Steel Self-Tapping Hex Head Drill Tail Screws with Washers — Metal Roofing & Sheet Metal Fasteners Assortment Kit 20/100pcs
Stainless Steel Self-Tapping Hex Head Drill Tail Screws with Washers Metal Roofing & Sheet Metal Fasteners Assortment Kit 20/100pcs
Couldn't load pickup availability
Stainless Steel Self-Tapping Hex Head Drill Tail Screws with Washers — Metal Roofing & Sheet Metal Fasteners
Stainless steel hexagonal head drill-point (TEK) self-tapping screws with integrated EPDM bonded sealing washers for metal roofing, cladding, and sheet metal fastening. The drill-point tip eliminates pre-drilling — the screw drills its own pilot hole and taps its own thread in a single operation. The EPDM bonded washer compresses to create a weatherproof seal around the screw hole, preventing water ingress in roofing and cladding applications.
Key Specifications
| Material | Stainless steel (304 / 410) |
|---|---|
| Head Type | Hexagonal (hex head) |
| Point Type | Drill point (TEK / self-drilling) |
| Washer | Integrated EPDM bonded sealing washer |
| Drive | Hex socket (8mm or 10mm) |
| Quantity Options | 20pcs / 100pcs |
| Application | Metal roofing, cladding, purlin, sheet metal |
Why Choose Drill-Point Screws with EPDM Washers?
- Self-drilling tip — drills pilot hole and taps thread in one pass; no pre-drilling required; faster installation
- EPDM bonded washer — compresses to create weatherproof seal; prevents water ingress at screw hole for 20+ years
- Stainless steel — corrosion-resistant for outdoor roofing and coastal environments; no rust staining on roof panels
- Hex head drive — high torque with standard hex socket driver; no cam-out; compatible with impact drivers
- 20 or 100pcs options — small repair or full roofing project
Typical Applications
- Metal roofing — corrugated steel, standing seam, and trapezoidal profile roof sheet fastening to purlins
- Wall cladding — metal cladding panel attachment to steel frame and structural sections
- Agricultural buildings — barn, shed, and farm building roof and wall sheet fastening
- Industrial buildings — warehouse, factory, and commercial building metal roof fastening
- Solar panel mounting — mounting rail attachment to metal roof purlins
- HVAC ductwork — sheet metal duct assembly and access panel fastening
Global Application Coverage
Widely used in metal building construction across: Australia & New Zealand (Colorbond roofing, Lysaght profiles), UK & Europe (Kingspan, Metecno, Ruukki panels), North America (metal building systems, Butler, BlueScope), Southeast Asia (tropical climate roofing requiring corrosion resistance), and Middle East (high UV and salt air environments). Stainless steel grade ensures performance in all climate zones.
Installation Guide
- Mark screw positions at 250–300mm centres along purlin or structural member
- Use a hex socket driver (8mm or 10mm) at 1500–2500 RPM
- Apply moderate downward pressure — let the drill point do the work; do not force
- Stop when the EPDM washer is compressed flush with the panel surface — do not overtighten (washer will extrude)
- Check washer compression visually — a correctly tightened screw shows a slight washer bulge around the head
FAQ
Q: What steel thickness can these drill-point screws penetrate?
A: Standard TEK drill-point screws penetrate up to 3mm (12 gauge) steel without pre-drilling. For thicker structural steel (3–6mm), use TEK 5 drill-point screws with a longer drill point.
Q: How long do EPDM bonded washers last?
A: EPDM rubber has a service life of 20–30 years in outdoor UV exposure — significantly longer than neoprene or PVC washers. EPDM is the standard washer material for metal roofing fasteners.
Q: Can I use these on aluminium roofing panels?
A: Yes, with caution. Use 304 stainless steel screws (not carbon steel) to avoid galvanic corrosion between the screw and aluminium panel. 304 SS and aluminium have a low galvanic potential difference and are compatible in most environments.
Package Contents
- Stainless steel hex head drill-point self-tapping screws with EPDM bonded washers (20pcs or 100pcs per selected variant)
- ★Product Description
- ★About us
- ★Custom cable
Stainless Steel Self-Tapping Hex Head Drill Tail Screws with Washers — Metal Roofing & Sheet Metal Fasteners
Stainless steel hexagonal head drill-point (TEK) self-tapping screws with integrated EPDM bonded sealing washers for metal roofing, cladding, and sheet metal fastening. The drill-point tip eliminates pre-drilling — the screw drills its own pilot hole and taps its own thread in a single operation. The EPDM bonded washer compresses to create a weatherproof seal around the screw hole, preventing water ingress in roofing and cladding applications.
Key Specifications
| Material | Stainless steel (304 / 410) |
|---|---|
| Head Type | Hexagonal (hex head) |
| Point Type | Drill point (TEK / self-drilling) |
| Washer | Integrated EPDM bonded sealing washer |
| Drive | Hex socket (8mm or 10mm) |
| Quantity Options | 20pcs / 100pcs |
| Application | Metal roofing, cladding, purlin, sheet metal |
Why Choose Drill-Point Screws with EPDM Washers?
- Self-drilling tip — drills pilot hole and taps thread in one pass; no pre-drilling required; faster installation
- EPDM bonded washer — compresses to create weatherproof seal; prevents water ingress at screw hole for 20+ years
- Stainless steel — corrosion-resistant for outdoor roofing and coastal environments; no rust staining on roof panels
- Hex head drive — high torque with standard hex socket driver; no cam-out; compatible with impact drivers
- 20 or 100pcs options — small repair or full roofing project
Typical Applications
- Metal roofing — corrugated steel, standing seam, and trapezoidal profile roof sheet fastening to purlins
- Wall cladding — metal cladding panel attachment to steel frame and structural sections
- Agricultural buildings — barn, shed, and farm building roof and wall sheet fastening
- Industrial buildings — warehouse, factory, and commercial building metal roof fastening
- Solar panel mounting — mounting rail attachment to metal roof purlins
- HVAC ductwork — sheet metal duct assembly and access panel fastening
Global Application Coverage
Widely used in metal building construction across: Australia & New Zealand (Colorbond roofing, Lysaght profiles), UK & Europe (Kingspan, Metecno, Ruukki panels), North America (metal building systems, Butler, BlueScope), Southeast Asia (tropical climate roofing requiring corrosion resistance), and Middle East (high UV and salt air environments). Stainless steel grade ensures performance in all climate zones.
Installation Guide
- Mark screw positions at 250–300mm centres along purlin or structural member
- Use a hex socket driver (8mm or 10mm) at 1500–2500 RPM
- Apply moderate downward pressure — let the drill point do the work; do not force
- Stop when the EPDM washer is compressed flush with the panel surface — do not overtighten (washer will extrude)
- Check washer compression visually — a correctly tightened screw shows a slight washer bulge around the head
FAQ
Q: What steel thickness can these drill-point screws penetrate?
A: Standard TEK drill-point screws penetrate up to 3mm (12 gauge) steel without pre-drilling. For thicker structural steel (3–6mm), use TEK 5 drill-point screws with a longer drill point.
Q: How long do EPDM bonded washers last?
A: EPDM rubber has a service life of 20–30 years in outdoor UV exposure — significantly longer than neoprene or PVC washers. EPDM is the standard washer material for metal roofing fasteners.
Q: Can I use these on aluminium roofing panels?
A: Yes, with caution. Use 304 stainless steel screws (not carbon steel) to avoid galvanic corrosion between the screw and aluminium panel. 304 SS and aluminium have a low galvanic potential difference and are compatible in most environments.
Package Contents
- Stainless steel hex head drill-point self-tapping screws with EPDM bonded washers (20pcs or 100pcs per selected variant)
- ♥Hear From Our Happy Customers
- ♥Verified Buyer Reviews
- ♥Trusted by Professionals and Engineers
