International Standard 7388/2 Pull Stud specification:

Type	d1	d2	d3	d4	d5	L1	L2	L3	L4	L5
LDB30	13.3	9.3	18	13	M12	27	11.8	8.15	1.25	2.75
LDB40	18.95	12.95	23	17	M16	44.5	16.4	11.15	1.75	3.25
LDB50	29.1	19.6	36	25	M24	65.5	25.55	17.95	2.75	5.25
LDB60	37.25	25	50	32	M30	95	38.15	27.65	3.75	7.75