4-piece set stahlbus Bleeder … 4-piece set stahlbus Bleeder valve 5/16 inches-24UNFx16mm, steel with blue dust cap 4-piece set stahlbus Bleeder … 4er Set 5/16"-M (thread length 16mm) with blue cap × 4-piece set stahlbus Bleeder valve 5/16 inches-24UNFx16mm, steel with blue dust cap