22H705 up for sale i around 200 steel zinc plated drive screw rivets # 6 x 1/2 long grip area , these were in a box marked 0608U 10 M 24# 6 x 1/2 U drive screw , made in Taiwan , these rivet drive screws measure 0.136 diameter or # 6 screw size the total length is 0.575 or just over 5/8 the head is 1/4 or 0.247 inch , the top has a dome or button design the grip area is 0.478 just under 1/2 , great fasteners for your project , these are sold by weight and you will get 8 ounces which is about 200 drive screws , see our store we are adding new items weekly , thank you rwk