5.5mm x 70mm Hexagon Washer Head Self Drilling Screw DIN 7504K | A2 Stainless Steel

Product code: DR7504K-5.5-70-A2
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5.5mm x 70mm Hexagon Washer Head Self Drilling Screw DIN 7504K | A2 Stainless Steel
5.5mm x 70mm Hexagon Washer Head Self Drilling Screw DIN 7504K | A2 Stainless Steel
5.5mm x 70mm Hexagon Washer Head Self Drilling Screw DIN 7504K | A2 Stainless Steel
5.5mm x 70mm Hexagon Washer Head Self Drilling Screw DIN 7504K | A2 Stainless Steel
5.5mm x 70mm Hexagon Washer Head Self Drilling Screw DIN 7504K | A2 Stainless Steel
5.5mm x 70mm Hexagon Washer Head Self Drilling Screw DIN 7504K | A2 Stainless Steel
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
200 - 1999 £0.37 £0.44
2000 - 4999 £0.26 £0.31
5000 + £0.20 £0.24

£0.44 / each

Minimum Order: 200

Up to 23,200 units
Available
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Up to 39,040 units
Available
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39,040 + units
Available for production
Average production time 14 + days.
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Product Specification
Thread Size 5.5mm
Thread Length 70mm
Across Flats 8.0mm
Flange Diameter 11.0mm
Head Height 5.4mm
Material A2 Stainless Steel
Standard DIN 7504K

Next Day or Standard Delivery available via DHL or Royal Mail.
Order by 4pm (UK) for same day dispatch, Monday to Thursday or 2pm Friday.

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5.5mm x 70mm Hexagon Washer Head Self Drilling Screw DIN 7504K | A2 Stainless Steel | Vital Parts - DR7504K-5.5-70-A2

Our 5.5mm x 70mm Hexagon Washer Head Self Drilling Screws are designed for fast and secure installation into suitable sheet materials. Manufactured from A2 Stainless Steel and produced to DIN 7504K, these screws combine an integral drilling point with a hexagon washer head to reduce installation time and provide dependable clamping performance.

The self drilling point cuts its own fixing hole before the thread engages, helping to remove the need for a separate pilot-drilling operation. The hexagon drive provides positive tool engagement, while the integral washer flange distributes the applied load across a wider area and helps create a stable fixing.

What are Hexagon Washer Head Self Drilling Screws?

Hexagon Washer Head Self Drilling Screws to DIN 7504K are threaded fasteners incorporating a drill-shaped point and an externally driven hexagon head. During installation, the point drills through suitable sheet material before the thread forms or engages with the substrate. The washer-style flange beneath the head increases the bearing area, improving load distribution and reducing localised surface pressure.

Technical Specifications:

  • Thread Size: 5.5mm
  • Thread Length: 70mm
  • Head Height: 5.40mm
  • Across Flats: 8.0mm
  • Flange Diameter: 11.00mm
  • Manufactured to DIN 7504K
  • Made from corrosion-resistant A2 Stainless Steel

Applications:

Our Hexagon Washer Head Self Drilling Screws are ideal for:

  • Sheet metal fabrication and general metalwork
  • Roofing, cladding and building-envelope components
  • HVAC ducting and ventilation assemblies
  • Electrical cabinets, enclosures and equipment housings
  • Brackets, frames and light structural assemblies
  • Automotive, machinery and general engineering applications

Benefits:

  • Integral self drilling point reduces the need for pilot holes
  • Hexagon drive provides positive engagement with socket tools
  • Washer head distributes clamping force across a wider surface
  • Suitable for efficient installation into compatible sheet materials
  • Available in a range of thread diameters and lengths
  • Faster installation by combining drilling and fastening in one operation
  • Reduced requirement for separate pilot-hole preparation
  • Positive hexagon drive helps minimise tool slippage
  • Wider bearing area improves clamping-load distribution
  • A2 stainless steel provides good resistance to corrosion and environmental wear
  • Durable, low-maintenance fastening solution for indoor and outdoor applications

Why Buy from Vital Parts?

Vital Parts is a trusted UK supplier of high-quality fasteners and industrial components. We offer:

  • Same-Day Dispatch: Ensuring fast delivery to keep your projects on schedule.
  • Competitive Trade Pricing: Bulk discounts available for larger orders.
  • Expert Support: Our technical team is ready to assist with product selection and application guidance.

Whether you are assembling sheet metal components, installing cladding or manufacturing industrial equipment, our DIN 7504K Hexagon Washer Head Self Drilling Screws provide a practical combination of installation efficiency, corrosion resistance and secure fastening performance.

For assistance selecting the correct size, contact our technical team on 01233 713581.

Please call for any enquiries!
Mon - Thurs 8.30 am - 5.30 pm
Fri 8.30 am - 3.30 pm
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