BRASS WASHERS/DISCS are designed to take a 1/4" magnetic nail, or a steel ribbed nail. 1/4" hole - 0.032" thick..
500 piece minimum per unique stamping
A different type/size nail can work as well. Stamping is available in 2 straight lines of 7 spaces. (Some letters such as W or O can limit text to 6 spaces)
Stamp Order Form