We stock a drive-in standard stud, 40mm long with a raised pyramidal head about 10mm across (pictured), about 200 to the kilo. We also work on modern coach screws,to look like old, but only to order because we don’t keep the blanks. Drive-in studs are difficult and time-consuming to make,so they’re also just to order. E-mail us at sales@forgeriesonline.co.uk