Certified Hygienic

Certified hygienic nuts with blue sealing are the right nuts to be used on all machinery in all certified hygienic wash-down environments. The sealing blocks out water and bacteria and prevents a non-hygienic metal-to-metal assembly. Round-headed and self-draining surfaces with a maximal roughness of 0.8 μm Ra.

The design of the nuts does not deviate from the sizes of current standard nuts. Therefore, wrench sizes, thread heights, etc. all remain the same making it very easy to upgrade and replace standard nuts.

Read moreRead less

Product finder

Start your search by using the filters below


Clear all
  • EHEDG and 3-A certified
  • Minimized cleaning time
  • Minimized water usage
  • Bolts and nuts are EHEDG and 3-A (RPSCQC) certified

    These accessories are the optimal choice for equipment that has to comply with strict hygiene requirements.

  • The bolts have self-draining surfaces with a maximal roughness of 0.8 pm Ra.

  • The hygienic design minimizes cleaning time and water usage.

Certified Hygienic
Nuts Features

  • Certified in accordance with 3-A (RPSCQC)
  • Certified in accordance with EHEDG hygienic standard TYPE EL - CLASS I AUX
  • Minimizes cleaning time and water consumption
  • Surfaces with a maximal roughness of 0,8 μm Ra

Download accessories catalogue

Relevant downloads:

(Declarations always adhere to the latest RoHS and REACH)

We are here to help

All NGI products are in stock and ready for immediate dispatch. Our lead time throughout Europe is just 3-4 days. Feel free to call us for non-binding advice regarding your specific product.

Jacob Trolldenier
Jacob Trolldenier

Scandinavia UK & Ireland

D: +45 96 32 75 48

M: +45 60 13 37 43


Anders Kjær
Anders Kjær
Sales & Team leader

Scandinavia UK & Ireland

D: +45 38 41 75 27

M: +45 29 81 10 17


Lee Morrison
Lee Morrison
Sales - locally

UK & Ireland

M: +44 77 30 59 08 55


Nicolaj Claesen Mathiesen
Nicolaj Claesen Mathiesen
Sales & Team leader

Benelux, Spain & Portugal

D: + 45 96 32 75 58

M: +45 22 15 90 01


Oleksandr Gerasymovych
Oleksandr Gerasymovych
Business Team Manager & Sales

Eastern Europe

D: +45 96 32 75 79

M: +45 30 95 81 93


Don’t know who to contact?

Let us contact you