02-07-2013, 09:38 PM
It'll hold fine as long as the bolts are sufficiently tight and have sufficient tensile strength
What is the diameter of the very widest part of the bolt head and youll be able to work it out.
basically;
diameter of top of bolt head - 8mm (for an M8 thread) = a
a/2 = x which will be the bottom side of a right angle triangle
y = 4mm which is the height of the bolt head and the vertical side of a right angle triangle
z= the 3rd side of your triangle
you need to work out the angle between x and z and this will be the angle of countersink you need.
Its maths you did in secondary school and thought youd never ever need to use for the rest of your life lol
(02-07-2013, 06:37 PM)306Puggy Wrote: Bolt head is 4mm deep thread is M8. Not sure how to work out the angle though?
What is the diameter of the very widest part of the bolt head and youll be able to work it out.
basically;
diameter of top of bolt head - 8mm (for an M8 thread) = a
a/2 = x which will be the bottom side of a right angle triangle
y = 4mm which is the height of the bolt head and the vertical side of a right angle triangle
z= the 3rd side of your triangle
you need to work out the angle between x and z and this will be the angle of countersink you need.
Its maths you did in secondary school and thought youd never ever need to use for the rest of your life lol