4-piece set stahlbus Bleeder … 4-piece set stahlbus Bleeder valve 3/8 inches-24UNFx16mm (M), steel with red dust cap 4-piece set stahlbus Bleeder … 4er Set 3/8"-M (thread length 16mm) with red cap × 4-piece set stahlbus Bleeder valve 3/8 inches-24UNFx16mm (M), steel with red dust cap