Bales catch size

[Scion]

Very quick Q:

For a (say) 19mm Bales catch such as

does the 19mm refer to the diameter of the ball, or the width of the plate?

[The Natural Philosopher]

dont thunk i've seen one with a 19mm ball ever.

[larkim]

- would imply that it is the depth of the ball recessed into the door. (19mm = D)

[Scion]

larkim put finger to keyboard:

Thanks for the link. I looked at Screwfix and Toolsatan and neither gave dimensions.

[harry]

I believe it is the diameter of the tube/hole you have to drill to fit it.

[Scion]

harry put finger to keyboard:

Hmmm. Think I'll pop into Homebase to measure up, then go to Screwfix to buy.