M5

These Hexagon Head Nyloc nuts are manufactured from A4 grade stainless steel, sometimes referred to as ‘Marine Grade’ stainless, often selected for their optimum resilience to corrosion compared to that of mild steel and A2 grade stainless.

These nuts incorporate a nylon collar insert which acts as a locking mechanism, reducing the likelihood of the nut working loose, assisting the nut to seal in water and many fluid applications alike.