Model No.	D	D1	E	F	M	S
FK05	8	5	23	6	M5x0.5	7
FK08	10/12	8	32	9	M8x1	10
FK10	12/14/15	10	36	15	M10x1	12
FK12	14/15/16	12	36	15	M12x1	12
FK15	18/20	15	48	20	M15x1	13
FK17	20/25	17	59	23	M17x1	17
FK20	25/28/30	20	64	25	M20x1	16
FK25	30/32/36	25	76	30	M25x1.5	20
FK30	36/40	30	73	38	M30x1.5	25