Typically all studs are 1 diameter thread, 1/2 diameter plain, balance thread (this can occasionally vary so feel free to check before ordering).
We do hold reasonable stocks on studs but some may take up to 14 days to bring in to stock as even our suppliers no longer stock imperial sizes. It's always advisable to check with us before ordering so as to be sure of when you are likely to receive you order.
Available Individually or in 10's and 25's. For larger quantities please contact us directly.