STUDS, THREAD UNC, DIAMETER 1/2IN, LENGTH M14 x 65MM, MATERIAL ALLOY STEEL, MATERIAL SPECIFICATION ASTM-B8, CONSTRUCTION W/8 HEAVY HEX NUT ALLOY STEEL ASTM-B8, PTFE COATED, NUT FACTOR AND PTFE FRICTION COEFFICIENT REQUIRED, MANUFACTURER SWAGELOK OR EQUAL