# Hardened steel Nozzle **URL:** \ **Category:** LulzBot Mini\ **Created:** [December 11, 2015, 7:14pm UTC](https://forum.lulzbot.com/t/hardened-steel-nozzle/2610 "2015-12-11T19:14:41Z")\ **Posts on this page:** 1\ **Showing post:** 18
**Author:** ![Sebastian](https://avatars.discourse-cdn.com/v4/letter/s/4da419/32.png) [@Sebastian](https://forum.lulzbot.com/u/Sebastian)\ **Post date:** [January 3, 2016, 12:12pm UTC](https://forum.lulzbot.com/t/hardened-steel-nozzle/2610/18 "2016-01-03T12:12:15Z")
> [@nopick](#): > > There is an additional issue that can crop up on the Hexagon. Since the shoulder of the brass nozzle tightens against the heater block, pressure is applied to the nozzle as the heater block expands. If the nozzle is over tightened, the stress applied to the nozzle can cause it to fatigue and fracture after repeated heat cycles. > > This can be the result… Yes, if you follow the official hexagon / Lulubot way of torquing it. If you do it the e3d way as I described it in my Howto, you don’t have this risk and even don’t need a torque wrench: [Howto: Change Hexagon hotend nozzle](https://forum.lulzbot.com/t/howto-change-hexagon-hotend-nozzle/2613/1) In my oppinion, there is no logic reason why Hexagon recommends that dangerous way of mounting! --- _[View the full topic](https://forum.lulzbot.com/t/hardened-steel-nozzle/2610)._