Threaded Sealing Caps
Threaded Sealing Caps, also known as plastic sealing caps, or barrel caps, are essential components used to protect threaded connections from contaminants, moisture, and mechanical damage. Commonly utilised in both consumer and professional settings, these caps are vital in industries such as manufacturing, automotive, logistics, and oil and gas, ensuring the integrity of containers and barrels during storage and transportation.
Our range of threaded sealing caps is available in various sizes and thread types, including BSP, UNF, and Metric standards, to accommodate diverse industrial needs. Manufactured from durable High-Density Polyethylene (HDPE), these caps offer excellent resistance to chemicals and environmental factors. The design ensures an air-tight seal, safeguarding internal threads and preventing leakage or ingress of foreign materials.
Key features and benefits include:
- Versatility: Suitable for a wide range of thread types and sizes.
- Durability: Made from robust HDPE material for long-lasting protection.
- Ease of Use: Simple installation and removal without the need for special tools.
- Protection: Shields threads from dirt, moisture, and mechanical damage.
- Compliance: Meets industry standards for quality and performance.
Common use cases in the UK market include:
- Sealing hydraulic and pneumatic fittings in machinery.
- Sealing threaded barrels and containers used for transporting drilling fluids and chemical additives.
- Preventing contamination in plumbing and piping systems.
- Covering exposed threads in automotive and aerospace assemblies.
- Maintaining cleanliness in food and beverage processing equipment.
Explore our related product ranges for comprehensive sealing solutions:
For quick quotes, same-day dispatch, custom size requests, or bulk discount inquiries, please call our sales line at 01233 713 581. Businesses can register for a Vital Parts business account to receive priority shipping, trade pricing, free product samples, credit purchase options, and dedicated account management.

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