BOM Child Item Qty

Hi Experts,

In BOM Child Item Quantity i need to exceed decimal points over 3 decimals.

i.e. currently when i put weight for child item as 0.115 gms it will return in 0.12 gms.

and its making atleast 10-15 % variation in Qty.

Plz suggest for same.

awaiting for your kind reply.

Regards,

Ravi