Wuxi Nest Sample Vials Screw Cap with Sealing Ring, Flat Cap, Yellow, Sterile Bag Package, 500 pcs/pack, 4 packs/case, 2000 pcs/case , 633981Y

Sterile yellow screw caps with an internal sealing ring and flat external profile for sample vials. Designed to provide liquid-tight closure for microcentrifuge and sample storage tubes, these caps are supplied in bag packaging with 500 pieces per pack and a total of 2,000 pieces per case (4 packs/case). Constructed for laboratory liquid handling and sample transfer applications, the caps feature a sealing ring to prevent leakage and maintain sample integrity during handling and storage.

Key Features:

• Closure type: Screw cap with internal sealing ring (flat cap, external thread)
• Color: Yellow
• Sterility: Sterile
• Packaging: Bag package, 500 pcs per pack, 4 packs per case (2000 pcs per case)
• Manufacturer part code: 633981Y

Advantages:

• Sealing ring provides secure, liquid-tight closure to reduce risk of leakage during handling and storage.
• Sterile product reduces contamination risk for sensitive sample workflows.
• Packaged in 500-piece bags and bulk case quantity for lab inventory efficiency and consistent supply.
• Flat external cap profile enables stacked storage and easy labeling or color coding of sample sets.