We are offering stainless steel threaded elbow. Threaded elbows are elbows with screw threads at both sides. We offer 90 degree and 45 degree elbows. These fittings have center to face dimension and are typically used in tight areas where clearances are an issue. They are mostly used for changing the direction in piping and are also sometimes called a quarter bend. 1. Material: 304, 304l, 316, 316l, etc. 2. Standard: gbt 14383, asme b16.11, bs 3799 3. Type: 90° and 45°threaded elbow.