How much do Hipshot guitar tuner buttons weigh?

We were asked this question by a customer who wanted to reduce his headstock weight - so we immediately went and weighed some!

All weights are for 6 buttons with no screws. Remember to adjust for 7 & 8 string....

Stock buttons - 

'Hipshot' button (as found on open classic and open locking tuners) 40 grams

D07 mini-schaller (as found on enclosed classic and enclosed locking tuners) 45 grams

Others:

D05's - 40 grams

D04's - 55 grams

S02's - 10 grams

A02's - 10 grams

A05's - 10 grams

SK's - 23 grams