ARI considers safety as a main factor when designing the parts. Moreover, the parts are designed and produced according to the respective international standards. All the goods in this segment suit the EN74 and EN18928 standards, and show the resistance which is much over the demanded. Both the nuts, and the tubes are produces with maximum precision. The necessary periodic tests are performed both internally, and also by the third-party institutions, ex. TSE (Turkish Standards Institute). You can find some test reports in the QUALITY section of our website. The jack nuts can be produced by casting and by forging. Furthermore, the nuts can be produced with casted thread or the thread can be machined by CNC.