MERTIC FASTENERS	TORQUE – Nm CLASS – 1	TORQUE – Nm CLASS – 2
M5	10	5
M6	12	6
M8	18	15
M10	55	30
M12	95	50
M16	240	120
M20	460	230
M24	790	400
M30	1610	810
M36	2700	1390

Class – 1: are the highly stressed fasteners where joint separation is critical with initial core stress in 75-80% yield stress.

Class – 2 : are the lightly stressed fasteners – 35-40% yield stress.