Thread: hole size
View Single Post
  #2 (permalink)  
Old 14-02-04, 02:31 PM
Purple AK's Avatar
Purple AK Purple AK is offline
Club Sec/Rep Liason
 
Join Date: Apr 2004
Location: East Sussex, UK.
Age: 56
Posts: 7,962
RE: hole size

Hi Tony
I assume you mean the hole size to tap an M10 thread?.If so here goes,
M10 x 1.5 (normal) 60% thread 8.80mm, 75% thread 8.50mm
M10 x 1.25 60% thraed 9.00mm, 75% thread 8.75mm
M10 x1 60% thread 9.20mm, 75% thread 9.00mm

Use the 75% figure for holes of 15mm or less depth in soft metals and mild steel. And the 60% for deeper holes.
HTH Cheers :tu
__________________
Chris
AK 427 351C T5wc
Reply With Quote