Round head screw with square neck

Category C product. Tolerances according to ISO 4759. Mechanical properties according to ISO 898/1 (see general technical notices).

Class:: 4.8
Pitch:: Coarse
Family:: TT561

UNI:: 5731
DIN:: 603
ISO:: 8677

The three different sets of rules are not identical. In practice, the differences generally allow for either use in most cases. The table refers to DIN which is the one mainly distributed by Berardi.
The unthreaded shaft diameter, could correspond to the average diameter of rolling.


Part number	d x L	dk	v	k max.	h	b 1 < 125	b2 125 ÷ 200	Kg x 1000	Package of	Number of packages
Part number	d x L	dk	v	k max.	h	b 1 < 125	b2 125 ÷ 200	Kg x 1000	Package of	Number of packages
TT56100501600	M5 x 16	13	5	3,3	4,1	16	22	5,32	500
TT56100502500	M5 x 25	13	5	3,3	4,1	16	22	6,22	500
TT56100602000	M6 x 20	16	6	3,88	4,6	18	24	7,30	500
TT56100603000	M6 x 30	16	6	3,88	4,6	18	24	11,20	500
TT56100801600	M8 x 16	20	8	4,88	5,6	22	28	14,90	500
TT56100802000	M8 x 20	20	8	4,88	5,6	22	28	17,50	200
TT56100802500	M8 x 25	20	8	4,88	5,6	22	28	19,50	200
TT56100803000	M8 x 30	20	8	4,88	5,6	22	28	21,30	200
TT56100804000	M8 x 40	20	8	4,88	5,6	22	28	25,30	200
TT56100804500	M8 x 45	20	8	4,88	5,6	22	28	27,20	200
TT56100805500	M8 x 55	20	8	4,88	5,6	22	28	31,10	200
TT56100806000	M8 x 60	20	8	4,88	5,6	22	28	33,00	200
TT56100807000	M8 x 70	20	8	4,88	5,6	22	28	36,90	200
TT56100808000	M8 x 80	20	8	4,88	5,6	22	28	40,80	200
TT56100809000	M8 x 90	20	8	4,88	5,6	22	28	44,60	200
TT56101002500	M10 x 25	24	10	5,38	6,6	26	32	41,80	200
TT56101003000	M10 x 30	24	10	5,38	6,6	26	32	43,20	200
TT56101003500	M10 x 35	24	10	5,38	6,6	26	32	44,20	200
TT56101004500	M10 x 45	24	10	5,38	6,6	26	32	50,20	100
TT56101007000	M10 x 70	24	10	5,38	6,6	26	32	65,30	100
TT56101008000	M10 x 80	24	10	5,38	6,6	26	32	71,40	100
TT56101009000	M10 x 90	24	10	5,38	6,6	26	32	77,40	100
TT56101010000	M10 x 100	24	10	5,38	6,6	26	32	83,50	100
TT56101011000	M10 x 110	24	10	5,38	6,6	26	32	89,50	100
TT56101012000	M10 x 120	24	10	5,38	6,6	26	32	95,60	100
TT56101013000	M10 x 130	24	10	5,38	6,6	26	32	101,00	100
TT56101014000	M10 x 140	24	10	5,38	6,6	26	32	107,00	100
TT56101015000	M10 x 150	24	10	5,38	6,6	26	32	113,00	100
TT56101016000	M10 x 160	24	10	5,38	6,6	26	32	119,00	100
TT56101018000	M10 x 180	24	10	5,38	6,6	26	32	131,00	100
TT56101019000	M10 x 190	24	10	5,38	6,6	26	32	137,00	100
TT56101020000	M10 x 200	24	10	5,38	6,6	26	32	143,00	100
TT56101204000	M12 x 40	30	12	6,95	8,75	30	36	69,60	200
TT56101205000	M12 x 50	30	12	6,95	8,75	30	36	78,30	200