Disclaimer: Actual product colours may vary slightly from images due to display settings and lighting. Where included, nuts & bolts are typically supplied in a galvanised finish. Where black coated nuts & bolts are displayed, it is for application purposes only. If required, the nuts & bolts can be coated with suitable powder coat compatible black touch spray paint, on site during installation.

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Round Post Cap Powder Coated Black

SKU: K40P

$5.93 inc. GST $5.39 ex. GST

Understanding NB vs OD pipe measurements

When measuring steel pipe, it's important to understand the difference between Nominal Bore (NB) and Outside Diameter (OD), measured in millimetres (mm).

NB (Nominal Bore): A standardised pipe size identification. It does not represent the pipe's exact inside diameter, as the actual internal diameter may be slightly larger or smaller depending on the pipe's wall thickness and manufacturing standard.

OD (Outside Diameter): The actual measurement across the outside of the pipe, measured in millimetres, and remains consistent across all wall thicknesses of the same NB size pipe.