4-piece set stahlbus Bleeder … 4-piece set stahlbus Bleeder valve 1/4 inches-28UNFx16mm, steel with red dust cap 4-piece set stahlbus Bleeder … 4er Set 1/4" (thread length 16mm) with red cap × 4-piece set stahlbus Bleeder valve 1/4 inches-28UNFx16mm, steel with red dust cap