|Threads Per Inch:||18|
|Finish:||Bright Zinc Plated and Clear Passivation|
|Thread Type:||Imperial - BSW|
|Tapping Drill Size:||6.5mm|
Grease nipples are small but very important fittings used in automotive and other mechanical systems to enable lubricant to be fed into the system. As the name suggest, the lubricant is usually grease.
Grease nipples contain a sprung ball bearing inside the nipple body. When a grease gun is connected to the grease nipple and pressure applied, the bearing compresses to allow the lubricant to flow into the joint.
BSW (British Standard Whitworth) is an imperial coarse thread first used in standard production by Joseph Whitworth during the industrial revolution. Whilst it is still used in engineering applications all across the world it is less common in the UK where metric threads have generally taken over.
We stock a wide range of grease nipples in straight, 45 degree and 90 degree configurations. They are available in metric and imperial thread sizes.
For more details on how to use grease nipples please visit our guides and tips section.
Grease nipples are called Zerk fittings in the USA.