ROTARY SCREW SNAPPER compatible lawnmower blade compatible with 13270385, 13271388, 13270387 Models 21351, 21355, 2135 XPS, 21401, 21405, 214X1, 214X5, 21507 B, 25062, 25063, 25064, 25065, 25066, 25069 T, 25083, 25084, 25085, 25086, 26062, 30083, 30085, 30087, 30088 Features: Thread: 5/16"-24 UNF Length (mm): 17.5 Weight:7 g Code: 13286558 Reference code: 7090228SM, 7090228, 9-0228 SNAPPER