Description
Overview – 50NB Galvanised Round Post Cap
This 50NB galvanised round fence post cap is designed to seal and protect 50NB steel posts from internal corrosion caused by rainwater and moisture exposure.
Capping steel posts is one of the simplest and most effective ways to extend fence lifespan and reduce maintenance.
Why Install Post Caps?
Open steel posts are vulnerable to:
Water pooling inside the post
Internal rust formation
Structural weakening over time
Premature fence failure
Installing a galvanised cap significantly reduces these risks.
Durable Galvanised Steel Construction
Manufactured from galvanised steel, this cap provides:
Strong corrosion resistance
Weather durability
Long-term outdoor performance
Low maintenance protection
Suitable for rural fencing, boundary fencing, commercial installations and gate posts.
Key Features
Designed for 50NB round steel posts
Suits Posts 50NB with an Outside Diameter (OD) – 60.3mm
Galvanised steel construction
Protects against water ingress
Helps extend post lifespan
Suitable for outdoor fencing applications





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