Bostitch code 1191901Z = 19mm length, Box of 13,400
Bostitch code 1192501Z = 25mm length, Box of 10.080
S2/16WC Staples
Crown width: 25mm
Galvanised
Clinch
19mm will fit Bostitch 438S2-1, 438S2R-1, S2638-2-E
25mm will fit Bostitch: 438S2-1, 438S2R-1, 450S2-1, ESD-450S2P, S2638-2-E, S2650-2-E