Carlisle Brass Dust Excluding Bolt Socket (For Timber OR Concrete), Satin Stainless Steel – DPS1008SSS :

To be used in conjunction with flush bolts, these sockets prevent dust and debris from entering into the cavities where more traditional plates would fill up over timennSuitable for timber, concrete and tiled floors and manufactured in stainless steel with a spring loaded plungernn10 Year Mechanical GuaranteennFinish: Polished ChromennDimensions:nn- Diameter: 25mmnn- Hole Size: 14.5mmnnSold & Supplied in Singlescomplete with fixingsnn