Square and special U-bolts

LIGHT
Pipe	D	d	F	G	I
30x30	31	M8	25	50	39
40x40	41			60	49
50x50	51			70	59
60x60	61	M10	30	82	71
70x70	71			92	81
80x80	81			102	91
90x90	91			112	101
100x100	101			122	111
MEDIUM
Pipe	D	d	F	G	I
30x30	31	M10	30	52	41
40x40	41			62	51
50x50	51			72	61
60x60	61	M12	35	86	73
70x70	71			96	83
80x80	81			106	83
90x90	91			116	103
100x100	101			126	113
HEAVY
Pipe	D	d	F	G	I
30x30	31	M12	35	56	43
40x40	41			66	53
50x50	51			76	63
60x60	61	M14	40	90	75
70x70	71			100	85
80x80	81			110	95
90x90	91			120	105
100x100	101			130	115