These corby bolts are made of copper, stainless steel or brass. You must choose size and type in the variations drop down. price is for 10 corby bolts. The dimensions are below

Over all length-1"

post length- .33"

thread length- .165"

- There are two different sizes-

Head diameter  1/4" with 3/16" diameter post

Head diameter 3/16" with 1/8" diameter post

Thanks for looking and God bless