FIELD: sealing means. SUBSTANCE: set of sealing members is suited for mounting on screw. The latter is provided with tightening means so that their irreversible locking is ensured upon application of seal unless this set of sealing members is broken. Set is provided in addition with rather easily broken actuating facilities. When this set of sealing members is tightened up, actuating facilities set screw in turning- in motion inside cup provided for the purpose. When this screw is locked so that it opposes any attempt to turn it out by means of these easily broken actuating facilities, the latter are destroyed. Easily broken actuating members have part separate from mentioned screw which is made for engaging screw tightening means. Proposed set can be used with any kind of screws and is suited to seal products at manufacturing plants. EFFECT: enlarged application range of sealing members. 13 cl, 15 dwg
