Screw Caps for 60 mL / 90 mL Specimen Containers — HDPE, Natural, 400/Bag (300-5603-02K)
These replacement screw caps are molded from high-density polyethylene (HDPE) and sized to fit standard 60 mL and 90 mL specimen containers, providing a secure, leak-resistant closure for specimen transport and storage. Supplied non-sterile in bulk quantities of 400 per bag, they are well suited for high-throughput clinical, environmental, and industrial laboratory workflows where large volumes of caps are routinely consumed. Part number 300-5603-02K offers a cost-effective procurement option for labs standardized on this common container format.
Technical Specifications
| Specification | Value |
|---|---|
| Part Number (MPN) | 300-5603-02K |
| Compatible Container Size | 60 mL / 90 mL Specimen Containers |
| Closure Type | Screw Cap |
| Material | High-Density Polyethylene (HDPE) |
| Color | Natural (translucent/white) |
| Sterility | Non-Sterile |
| Pack Size | 400/Bag |
| Country of Origin | USA |
Applications
- Replacement or spare closures for 60 mL and 90 mL specimen collection containers
- Securing urine, stool, or other biological specimens during transport and temporary storage
- Environmental and water-quality sampling where a reliable screw closure is required
- Industrial and food-safety laboratories collecting liquid or semi-solid specimens in standard containers
- High-volume clinical settings requiring bulk cap replenishment to support continuous workflow
Material & Chemical Resistance
High-density polyethylene offers broad resistance to aqueous solutions, dilute acids and bases, alcohols, and many common laboratory reagents, making it a reliable choice for routine specimen containment. HDPE is a rigid, durable thermoplastic; however, it is not recommended for autoclave sterilization and may be susceptible to swelling or permeation with certain aromatic and chlorinated solvents at elevated concentrations. For aqueous biological and environmental specimens, HDPE provides dependable performance.
Quality & Procurement
Made in USA, Caplugs® Evergreen specimen container caps are manufactured under ISO 9001 quality management from BPA-free, phthalate-free, latex-free HDPE resin. LabSupplies.com is an authorized dealer and ships from USA inventory, typically same business day for stocking items, with tiered pricing available for institutional, clinical, and grant-funded laboratories.
Frequently Asked Questions
Are these screw caps sterile?
No — part number 300-5603-02K is supplied non-sterile in 400/Bag bulk packaging. If your application requires sterile closures, please verify sterile alternatives are available for your container format.
Will these caps fit both 60 mL and 90 mL specimen containers?
Yes. The caps are specified for use with both 60 mL and 90 mL specimen containers, which typically share the same neck finish. We recommend confirming thread compatibility with your specific container brand before placing a large order.
Can HDPE caps be autoclaved for sterilization?
HDPE is generally not recommended for autoclave sterilization, as repeated high-temperature steam cycles can cause deformation or dimensional changes. For applications requiring sterile closures, consider gamma-irradiated or chemically sterilized options appropriate for your workflow.