Round Dies, left, DIN 5158 (DIN EN 24231), HSS-G, G 1/4 x 19 

for general use - non abrasive material up to 800 N/mm² - unalloyed and low alloyed steel Thread type: Pipe-thread DIN ISO 228 Norm: DIN 5158 (DIN EN 24231) Material: HSS-G