Machine Screw CSK Philips Head

Description:

Csk Phillips head screws from ITA Fasteners can be used for the assembly of machine and electrical components. These precision screws are similar to bolts as they have a head and a shank. They are also able to be used with a nut and come with a range of thread patterns. With the appropriate usage, they can bring a flat finish to the surface of operation. However, the diameter of these bolts are small, and they feature a straight shank with a blunt end. Be careful to use only a screwdriver with these screws instead of a wrench.

Since they are used for the construction of machine components, they are threaded externally for the full length of the shank. The usage of these screws is also subject to the drilling of a pilot hole. Otherwise, it can be used with a matted nut. It is available in stainless steel, carbon steel, and alloy steel to bear more wear and tear while also making it more corrosion resistant.

Dimensional Standards:

DIN 965, ISO 7046, CSN 21152, PN 82208, UNI 7688

Size range:

Metric: M2 to M8
Inches: 1/8” to 2BA

Machine Screw CSK Philips Head Dimensions

DIN 965 - Cross recessed countersunk flat head screws

Equivalent norms: ISO 7046; CSN 21152; PN 82208; UNI 7688;

Legend:
b - length of the thread (at least)
l - length of bolt
d - the nominal diameter of the thread
k - head height
r - radius
dk - head diameter
m - groove width
a - length undercut
x - thread run
Makings:
Steel: 4.8
Stainless: A2, A4
Plastic: -
Non Ferrous: -
Thread: 6g
Notes:
Table according to DIN 965:
dimensions in mm

Thread d				M1,6	M2	M2,5	M3	(M3,5)	M4	M5	M6	M8	M10
P				0,35	0,4	0,45	0,5	0,8	0,7	0,8	1	1,25	1,5
a	max.			0,7	0,8	0,9	1	1,2	1,4	1,6	2	2,5	3
b	min.			15	16	18	19	20	22	25	28	34	40
dk	nominal = max.			3	3,8	4,7	5,6	6,5	7,5	9,2	11	14,5	18
dk	min.			2,75	3,5	4,4	5,3	6,14	7,14	8,84	10,57	14,07	17,57
k	max.			0,96	1,2	1,5	1,65	1,93	2,2	2,5	3	4	5
r	max.			0,4	0,5	0,7	0,8	0,95	1	1,3	1,6	2	2,5
x	max.			0,9	1	1,1	1,25	1,5	1,75	2	2,5	3,2	3,8
Cross recess	no.			0	1	1	1	2	2	2	3	4	4
	type H	m	approx.	1,7	2,35	2,7	2,9	3,9	4,4	4,6	6,6	8,7	9,6
		penetration depth	min.	0,66	0,95	1,25	1,5	1,4	1,9	2,1	2,8	3,9	4,8
		penetration depth	max.	0,91	1,25	1,55	1,8	1,9	2,4	2,6	3,3	4,4	5,3
	type Z	m	approx.	1,8	2,2	2,5	2,8	3,7	4	4,4	6,1	8,5	9,4
penetration depth	min.			0,89	0,92	1,22	1,48	1,34	1,6	2,05	2,46	3,86	4,77
penetration depth	max.			1,14	1,17	1,47	1,73	1,8	2,06	2,51	2,92	4,32	5,23
l				Weight (7,85 kg/dm3) kg / 1000pcs
nominal		min.	max.	Weight (7,85 kg/dm3) kg / 1000pcs
3		2,8	3,2	0,058	0,101	0,175
4		3,75	4,25	0,069	0,119	0,206	0,291	0,434
5		4,75	5,25	0,081	0,137	0,236	0,335	0,494	0,676
6		5,75	6,25	0,093	0,152	0,266	0,379	0,554	0,754	1,21
8		7,7	8,3	0,116	0,193	0,326	0,467	0,673	0,9	1,45	2,19
10		9,7	10,3	0,139	0,231	0,386	0,555	0,792	1,06	1,7	2,54	5,03
12		11,65	12,35	0,162	0,268	0,446	0,643	0,911	1,22	1,95	2,89	5,67	9,59
-14		13,65	14,35	0,185	0,306	0,507	0,731	1,03	1,37	2,19	3,25	6,3	10,6
16		15,65	16,35	0,208	0,343	0,567	0,82	1,15	1,53	2,44	3,61	6,94	11,6
-18		17,65	18,35		0,381	0,627	0,908	1,27	1,68	2,69	3,95	7,57	12,6
20		19,6	20,4		0,417	0,687	0,996	1,39	1,84	2,94	4,31	8,21	13,6
-22		21,6	22,4			0,747	1,08	1,51	1,99	3,18	4,66	8,84	14,6
25		24,6	25,4			0,838	1,22	1,69	2,22	3,55	5,19	9,79	16,1
-28		27,6	28,4				1,35	1,87	2,46	3,93	5,72	10,7	17,6
30		29,6	30,4				1,44	1,99	2,61	4,16	6,08	11,7	18,6
35		34,5	35,5					2,29	2,99	4,76	6,96	13	21,1
40		39,5	40,5						3,36	5,39	7,84	14,6	23,6
45		44,5	45,5							6,02	8,73	16,2	26,1
50		49,5	50,5							6,65	9,61	17,8	28,6
55		54	56									19,4	31,1
60		59	61										33,7