Yellow Safety Top Cap – Plastic H Caps – AR38


Hi Vis – Rubber Top Cap – Yellow – Plastic H Caps

1-10 £7.00
11-20 £6.50
21-100 £6.25
100+ £6.00

In stock

Bulk deal
Quantity Fixed price
1 - 10 £7.00
11 - 20 £6.50
21 - 99 £6.25
100 + £6.00
Bulk pricing will be applied to package:


Plastic H Caps

Plastic H Caps and Plastic Z Caps are both types of post caps used for protection and safety enhancement. While they serve similar purposes, there are distinct differences between the two. Here is a detailed description of Plastic H Caps, their usage, and the key differences from Plastic Z Caps:



Plastic H Caps, also known as H-shaped post caps or post protectors, are plastic fittings designed to provide protection for square or rectangular posts or structures. They feature an H-shaped configuration, with two arms that fit over the top edges of the post and a central portion that covers the exposed corners. The caps are typically made from durable plastics such as Poly Vinyl Chloride, resisting UV rays and environmental elements.



  • Safety Enhancement: Plastic H Caps are primarily used to enhance safety by covering the exposed edges and corners of square or rectangular posts. This helps to minimize the risk of accidents or injuries caused by sharp edges, making them suitable for areas with pedestrian traffic or playgrounds.
  • Protection Against Corrosion: Square or rectangular posts are prone to corrosion when exposed to moisture or corrosive substances. Plastic H Caps act as a protective barrier, safeguarding the top surfaces and corners of the posts from direct contact with such elements. This protection helps extend the lifespan of the posts and reduces maintenance needs.
  • Visual Delineation: Plastic H Caps are available in bright and highly visible colors, enhancing visual delineation. This is particularly useful in low-light conditions or areas with limited visibility. The caps help guide pedestrians and drivers, alerting them to the presence of posts or obstacles and reducing the risk of accidental collisions.
  • Identification and Signage: Plastic H Caps can be customized with labels, symbols, or reflective materials to provide additional signage or convey important information. This customization allows for the display of directional arrows, caution signs, or identification numbers for specific posts or areas, aiding communication and efficient navigation.


Difference from Plastic Z Caps:

The main difference between Plastic H Caps and Plastic Z Caps lies in their shape and the type of posts they are designed to fit. While both caps offer similar benefits, they are tailored for different post configurations.

  • Shape: Plastic H Caps have an H-shaped design, covering the edges and corners of square or rectangular posts. In contrast, Plastic Z Caps feature a Z-shaped configuration, providing protection for round or cylindrical posts.
  • Post Compatibility: Plastic H Caps are specifically designed to fit square or rectangular posts. Their arms align with the top edges of the posts, offering a secure fit. Plastic Z Caps, on the other hand, are suitable for round or cylindrical posts, with their arms encompassing the rounded shape.
  • Applications: Plastic H Caps are commonly used in applications where square or rectangular posts are prevalent, such as in road infrastructure projects, construction sites, parking areas, and industrial settings. Plastic Z Caps are typically employed in conjunction with round or cylindrical posts, including signposts, guardrails, barriers, and fences.


In summary, Plastic H Caps provide protection, safety enhancement, and visual delineation for square or rectangular posts. They are designed to fit these specific post configurations and are commonly used in various applications. Understanding the differences between Plastic H Caps and Plastic Z Caps helps ensure the appropriate choice for the intended post type and enhances the effectiveness of post protection measures.


Should you require a different Safety Top Cap – we also offer a Yellow Safety Top Cap – Plastic Z Cap that may be better suited to your requirements.

Additional information

Weight 1.5 kg