Bally Williams bolts/screws

[davejuk]

I am unable to remove these bolts/screws from my Roadshow machine using a CR-V type bit.

A CR-V6mm is too small but the 7mm is too big and just spins. Doing it at an angle won't budge it.

Am I just being thick or are these some kind of manufacturer security screw?

 

[strobey]

The hex heads? You need an imperial bit - remember these are made in the US

 

[pinballmania]

They're 1/4"

 

[ronsplooter]

If you're going to own pins then buy something like this

http://www.ebay.co.uk/itm/7Pc-Nut-D...27e2846&pid=100005&rk=2&rkt=6&sd=182055976625

 

[RudeDogg1]

Yup you need imperial

 

[Irving Hill]

Is there a difference between sae and imperial or is it the same thing?

 

[ronsplooter]

Is there a difference between sae and imperial or is it the same thing?

Maybe when it comes to things like volume but in the case of nut drivers it's the same I think Imperial is the UK name for measuring in inches (and fractions of) and SAE is the US name (Standard American English) for measuring the same....this is what I think anyway, I could be wrong

 

[cooldan]

If you're going to own pins then buy something like this

http://www.ebay.co.uk/itm/7Pc-Nut-D...27e2846&pid=100005&rk=2&rkt=6&sd=182055976625

But get the version with different colour handles for the different sizes (in this case you'd want the yellow one for those screws), much more convenient. Andy pin mania sells them.

 

[davejuk]

Doh! I should have figured that out.

No wonder the 6mm was too small and the 7mm was too big - 1/4" is 6.35mm.