Qualities: AISI-304 Y AISI-316. Threads depending on ISO 7/1 (DIN 2999).

Manufacturing measures
1/4 3/8 1/2 3/4 1" 1 1/4 1 1/2 2" 2 1/2 3"
D 18 22 27 33 41 50 56 70 86 98
E 20 25,5 28 32 37 45 48 58 69 77