NUT-HX-FIN-SST-(18-8)-(PL)-1/4_20
SME B18.2.2, stainless steel 18-8, UNC (standard thread)
1 INCH (in) = 25.4 mm
18-8 is comparable with an A2 stainless steel.
Mechanical properties are regulated in ASTM F594
Standard thread tolerance according to ASME B1.1 = 2B (for internal thread)
