Description
This black 18mm polypropylene (PP) plastic cap features ribbed sides for a secure, easy-grip opening experience. Designed with a clean matte black finish, it delivers a professional look while providing reliable sealing performance for bottles and containers with an 18-400 thread finish.
Ideal for packaging applications that require a simple, non-child-resistant closure. Compatible jars and bottles are sold separately.
Key Features
● Material: Durable polypropylene (PP)
● Color & Finish: Matte black for a sleek, non-reflective appearance
● Liner: F217 foam liner for dependable sealing against moisture and leakage
● Design: Ribbed sides for improved grip and easier handling
● Child-resistant: No
Technical Specifications
| Material | Polypropylene |
| Color | Black |
| Surface Finish | Matte |
| Liner Type | F217 Foam |
| Child Resistant | No |
| Thread Finish | 18-400 |
| Inner Diameter | 18 mm |
| Outer Diameter | 21 mm |
| Height | 11 mm |
| Labeling Diameter | 14 mm |
| Circumference | 76 mm (3 in.) |
Labeling Note
The labeling diameter (14 mm) indicates the usable space on the top surface of the cap for a round sticker or label. If the cap includes embossed or debossed opening/closing instructions, the available labeling area is reduced to avoid covering the text.
Perfect For
Essential oils, cosmetics, laboratory samples, supplements, chemical packaging, and general-purpose bottles requiring a reliable 18-400 screw cap.


