Threaded fittings were dimensionally in accordance with a number of standards. This led to the fittings having threads that in many areas. We provide stainless steel threaded fittings with excellent techniques and reasonable pricing. Material of construction: Stainless steel : astm a182 f304/ 304l/ 304h/ 316/ 316l/ 317/ 317l/ 321/ 310/ 347/ 904l/ etc. Carbon steel : astm a105/ a105n/ a694 f42/46/52/56/60/65/70 / a350 lf3/ a350 lf2, etc. Alloy steel : astm a182 f1/ f5/ f9/ f11/ f22/ f91/ etc. Others: monel, nickel, inconel, hastalloy, copper, brass, bronze, Titanium, tantalum, bismuth, aluminium, high speed steel, zinc, lead, etc. Types : full socket, half socket, welding nipple, barrel nipple, Paraller nipple, bend 90 deg., hexagon nipple, elbow 90 deg. , elbow 45 deg., reducing elbow, equal tee, reducing tee, cross, y-piece, conical union, hose union, elbow union, etc. Size : 1/8" nb to 4" nb. Class : 150# , 3000#, 6000#, 9000#.. As per your ur requirement