These screws are for fixing a Sill Brush to a brush socket.
13mm = for original Super-Lite™ Carbon Gooseneck and Xtreme Brushes with any socket on
16mm = for either QuicK LoQ, 90° or Angled Socket on standard brushes (except Sill & Xtreme brushes)
19mm = for Sill Brushes
Supplied as a pair
A2 grade Stainless Steel
3.5 x 19mm