These stainless steel headpins are 23 gauge thick with a ball end of about 2mm round. Chose your length of 40mm long (1-1/2").?
Sold in lots of?50 ballpins.?
Stainless Steel Ballpins, 40mm (1-1/2 inch), 0.6mm thick, 23 gauge, Lot Size 50 (Approximately), #1302-40