Machine Nut Taps, DIN 357, HSS-E, M 18 x 2.5 

Application: - long reduced shank to allow nuts to run over - for thread depth up to 1 x D - ideal for tapping difficult to reach holes - for through threads for general use - non abrasive material up to 800 N/mm² - unalloyed and low alloyed steel Thread type: metric ISO-thread DIN 13 Norm: DIN 357 Material: HSS-E