Screw closure, N 8, PP, black, closed top, no liner 70250

Ready assembled screw closures N 8 and plain screw caps N 8 

Septa are assembled, caps are ready-to-use.

Septa are shown for illustration purposes only, images upside down.

Packs of 100 closures each

These screw caps N 8 are suitable to seal 8-425, small (standard) opening screw neck vials. The product has no liner (septa). For tight sealing these either need to be purchased separately or a ready assembled closure needs to be chosen. Closed top versions are used for sample storage.