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MINIMUM PRE-DRILLED HOLE SIZES PRIOR TO SINKING

Pre Drilling
Counterboring showing pre-drilled hole required
    
MAYDOWN MIN DRILL MAYDOWN MIN DRILL MAYDOWN MIN DRILL
CODE SIZE mm CODE SIZE mm CODE SIZE mm
AP10MS202 6 CMS1609M 2 MD20MS308 8
AP12MS202 5 CMS2010M 1 MD20MS308/2 8
AP16ML202 4 CMS2513M 2 MD25MEL308 13
AP16MS202 4 CMS3220M 10 MD25MS308 13
AP20ML202 8 CMS4028M 28 PM10MS308 4
AP20MS202 8 HL25200M12 8 PM12MS308 4
AP20MS202/2 8 HL32200M16 15 PM16ML308 4
AP25MS308 13 HL40200M16 23 PM16MS308 4
AP32MS202 20 HLC9025MMS 8 PM20ML308 8
AP40MS202 28 HLC9032MMS 15 PM20MS308 8
CM1508M8 2 HLC9040MMS 23 PM20M2308/2 8
CM2010M10 1 M25MM16 10 PM25MS308 13
CM2412M12 1 M32MM16 17 XL2516 8
CM3220M16 10 MD10MS308 4 XL3216 15
CM4230M16 30 MD12MS308 4 XL4016 23
CMD15308M8 4 MD16MEL308 4   
CMD20308M10 8 MD16ML308 4      
CMD24308M12 12 MD16MS308 4     
CMD32308M16 20 MD20MEL308 8    
CMD42308M16 30 MD20ML308 8