Kays Fasteners

Countersunk Self 

Drilling Screws

With Wings

Please select your requirements from the drop down lists above
  • Self drilling & tapping screws for fixing wood to metal.
  • Drill, drive & fix in one operation.
  • Countersunk head with Phillips drive.
  • Self drilling point.
  • Wings on the shank create a clearance hole in the wood to prevent the screw binding, the wings then break off upon contact with steel.
  • Ribs under the head to aid countersinking.
  • For use on steel up to 5mm thick.
  • Free drive bit with every order.
  • Manufactured from case hardened steel with zinc plated finish.
  • Sizes indicate thread diameters x screw length.                                                                                                                         
  • Specifications;
  • 4.2mm(no.8); Thread diameter 4.2mm; Head diameter 8mm; Head depth 3.1mm.                                                                    
  • 4.8mm(no.10); Thread diameter 4.8mm; Head diameter 9.5mm; Head depth 3.7mm.                                                                            
  • 5.5mm(no.12); Thread diameter 5.5mm; Head diameter 11mm; Head depth 4mm.                                                                        
  • 6.3mm(no.14); Thread diameter 6.3mm; Head diameter 12mm; Head depth 5mm.                                                                          
  • Screw lengths are measured overall, including the head.
  • All our items are delivered by FREE 1st CLASS UK P&P*
  • Metric/imperial conversions are approximate.
  • Picture is for illustration only.
  • GET IT FAST - orders placed before 2pm are dispatched same day (Mon-Fri).

Visit our Ebay shop for a full range of fasteners & fixings:


All items are in stock ready for dispatch.
Same-day dispatch when ordered before 2 pm (Mon-Fri).

Payment through PayPal is preferred as it is then covered by the PayPal payment protection scheme.

Orders paid for by postal orders and cheques will be dispatched when full payment has cleared.

We guarantee to dispatch all orders within 24 hours of cleared payment.

Orders placed at weekends or on a public holiday will be dispatched the next working day.

All items will be posted by Royal Mail first class or express carrier unless stated otherwise.

*Deliveries to some remote post codes may incur additional costs.

Related Products

A2 Stainless Steel Hexagon
Full Nuts To Fit Metric
Coarse Pitch Bolts & Screws

M4, M5, M6, M8mm
Stainless Steel Flanged
Button Head Allen Screws/Bolts

A2 Stainless Steel
Button Head Screw,
Allen Socket Bolts
M3, M4, M5, M6, M8.

M5,M6,M8,M10 A2
Stainless Steel Flange
Hexagon Hex Head
Metric Bolts / Screws
Ebay Store & Responsive Template Design by blue-moon-design.netBlue Moon Design