Socket set screws

Description:

Socket set screws from ITA Fasteners are used in applications which require a strong holding power through compression. They are used in building shaft collars, exit doors, knobs, and crash bars. They must be tightened enough to hold the compressed position without snapping due to the applied torque. The axial holding power of the screw can be increased by tightening it more. There are several styles in which these screws can be used.

Depending on the machining requirement, they are used in the assembly of permanent and semi-permanent part assemblies. These screws get the tighten and hold ability from the specially engineered cone shaped point which allows it to penetrate the part deeply. If it is used in a flat point design, they can bear wear and tear without compromising on its structural integrity. To eliminate structural damage and still allow frequent changes to be made, you can use these screws in an oval style. 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:

	FLAT	CONE	DOG/HALF DOG	PLAIN CUP
IS	6094	6094	6094	6094
DIN	913	914	915	916
ISO	ISO - 4026	ISO - 4027	ISO - 4028	ISO - 4029

Size range:

Metric: M3 to M20
Inches: 1/8” to 3/4”

Flange Button Socket Screws Dimensions

DIN 913 - Hexagon socket set screws with flat point

Equivalent norms: ISO 4026; CSN 21187; PN 82314; UNI 5923; EU 24026;IS 6094

Thread d		M1,4	M1,6	(M1,8)	M2	M2,5	M3	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20	(M22)	M24
P		0,3	0,35	0,35	0,4	0,45	0,5	0,7	0,8	1	1,25	1,5	1,75	2	2	2,5	2,5	2,5	3
d_f	approx.	Lower limit of minor thread diameter
d_p	max.	0,7	0,8	0,9	1	1,5	2	2,5	3,5	4	5,5	7	8,5	10	12	13	15	17	18
d_p	min.	0,45	0,55	0,65	0,75	1,25	1,75	2,25	3,2	3,7	5,2	6,64	8,14	9,64	11,57	12,57	14,57	16,57	17,57
e	min.	0,803	0,803	0,803	1,003	1,427	1,73	2,3	2,87	3,44	4,58	5,72	6,86	6,86	9,15	11,43	11,43	13,72	13,72
s	Nominal	0,7	0,7	0,7	0,9	1,3	1,5	2	2,5	3	4	5	6	6	8	10	10	12	12
	min.	0,711	0,711	0,711	0,889	1,27	1,52	2,02	2,52	3,02	4,02	5,02	6,02	6,02	8,025	10,025	10,025	12,032	12,032
	max.	0,724	0,724	0,724	0,902	1,295	1,545	2,045	2,56	3,08	4,095	5,095	6,095	6,095	8,115	10,115	10,115	12,142	12,142
t	min.	0,6	0,7	0,8	0,8	1,2	1,2	1,5	2	2	3	4	4,8	5,6	6,4	7,2	8	9	10
t	min.	1,4	1,5	1,6	1,7	2	2	2,5	3	3,5	5	6	8	9	10	11	12	13,5	15

DIN 914 - Hexagon socket set screws with cone point

Equivalent norms: ISO 4027; CSN 21191; PN 82315; UNI 5927; EU 24027;IS 6094

Thread d		M1,4	M1,6	(M1,8)	M2	M2,5	M3	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20	(M22)	M24
P		0,3	0,35	0,35	0,4	0,45	0,5	0,7	0,8	1	1,25	1,5	1,75	2	2	2,5	2,5	2,5	3
d_f	approx.	Lower limit of minor thread diameter
d_t	max.	-	-	-	-	-	-	-	-	1,5	2	2,5	3	4	4	5	5	6	6
d_t	min.	-	-	-	-	-	-	-	-	0,9	1,4	1,9	2,4	3,25	3,25	4,25	4,25	5,25	5,25
e	min.	0,803	0,803	0,803	1,003	1,427	1,73	2,3	2,87	3,44	4,58	5,72	6,86	6,86	9,15	11,43	11,43	13,72	13,72
s	nominal	0,7	0,7	0,7	0,9	1,3	1,5	2	2,5	3	4	5	6	6	8	10	10	12	12
	min.	0,711	0,711	0,711	0,889	1,27	1,52	2,02	2,52	3,02	4,02	5,02	6,02	6,02	8,025	10,025	10,025	12,032	12,032
	max.	0,724	0,724	0,724	0,902	1,295	1,545	2,045	2,56	3,08	4,095	5,095	6,095	6,095	8,115	10,115	10,115	12,142	12,142
t	min.	0,6	0,7	0,8	0,8	1,2	1,2	1,5	2	2	3	4	4,5	5,6	6,4	7,2	8	9	10
t	min.	1,4	1,5	1,6	1,7	2	2	2,5	3	3,5	5	6	8	9	10	11	12	13,5	15

DIN 915 - Hexagon socket set screws with full dog point

Equivalent norms: ISO 4028; CSN 21189; PN 82316; UNI 5925; EU 24028;IS 6094

d_p	1,75	2,25	3,2	3,7	5,2	6,64	8,14
t	1,2/2	1,5/2,5	2/3	2/3,5	3/5	4/3	4,8/8
s	1,5	2	2,5	3	4	5	6
l	d
l	M3	M4	M5	M6	M8	M10	M12
3	+
4	+	+
5	+	+	+
6	+	+	+	+
8	+	+	+	+	+
10	+	+	+	+	+	+
12	+	+	+	+	+	+	+
16	+	+	+	+	+	+	+
20	+	+	+	+	+	+	+
25		+	+	+	+	+	+
30		+	+	+	+	+	+
35				+	+	+	+
40				+	+	+	+
45				+	+		+
50				+	+	+	+
60					+		+

DIN 916 - Hexagon socket set screws with cup point

Equivalent norms: ISO 4029; PN 82317; UNI 5929; EU 24029;IS 6094

Thread d		M1,4	M1,6	(M1,8)	M2	M2,5	M3	M4	M5	M6	M8	M10	M12	(M14)	M16	(M18)	M20	(M22)	M24
P		0,3	0,35	0,35	0,4	0,45	0,5	0,7	0,8	1	1,25	1,5	1,75	2	2	2,5	2,5	2,5	3
d_v	max.	0,7	0,8	0,9	1	1,2	1,4	2	2,5	3	5	6	8	9	10	12	14	16	16
d_v	min.	0,45	0,55	0,65	0,75	0,95	1,15	1,75	2,25	2,75	4,7	5,7	7,64	8,64	9,64	11,57	13,57	15,57	15,57
d_f	approx.	Lower limit of minor thread diameter
e	min.	0,803	0,803	0,803	1,003	1,427	1,73	2,3	2,87	3,44	4,58	5,72	6,86	6,86	9,15	11,43	11,43	13,72	13,72
s	nominal	0,7	0,7	0,7	0,9	1,3	1,5	2	2,5	3	4	5	6	6	8	10	10	12	12
	min.	0,711	0,711	0,711	0,889	1,27	1,52	2,02	2,52	3,02	4,02	5,02	6,02	6,02	8,025	10,025	10,025	12,032	12,032
	max.	0,724	0,724	0,724	0,902	1,295	1,545	2,045	2,56	3,08	4,095	5,095	6,095	6,095	8,115	10,115	10,115	12,142	12,142
t	min.	0,6	0,7	0,8	0,8	1,2	1,2	1,5	2	2	3	4	4,5	5,6	6,4	7,2	8	9	10
t	min.	1,4	1,5	1,6	1,7	2	2	2,5	3	3,5	5	6	8	9	10	11	12	13,5	15

BS2470-Socket Set Screws - Imperial threaded-Cone Point,Dog Point,Flat Point,Cup Point,Oval Point

Nominal Size	D	J	K	Shortest nominal length to which dimensions K applies			C		H		R	Y	P		Q		Nominal Size
	Basic Screw Dia.	Hexagon socket size	Key engage-ment	Cup, flat and oval point	Cone Point	Dog point	Cup and flat point diameters (except hexagon internal knurled and small cup point)		Hexagon cup point internal knurled and small cup point diameters)		Oval point radius	Cone point angle (90 degree for these lengths and over, 118 degree for shorter lengths)	Half dog point
		Hexagon socket size	Key engage-ment								Oval point radius		Diameter		Length
		Nom.	Min.				Max.	Min.	Max.	Min.	Nom.		Max.	Min.	Max.	Min.
0	0.0600	0.028	0.022	1/16	3/32	3/32	0.033	0.027	0.032	0.027	0.046	5/64	0.040	0.037	0.017	0.013	0
1	0.0730	0.035	0.028	3/32	3/32	3/32	0.040	0.033	0.038	0.033	0.055	3/32	0.049	0.045	0.021	0.017	1
2	0.0860	0.035	0.028	3/32	1/8	1/8	0.047	0.039	0.043	0.038	0.062	7/64	0.057	0.053	0.024	0.020	2
3	0.0990	0.050	0.040	3/32	3/16	1/8	0.054	0.045	0.050	0.045	0.078	1/8	0.066	0.062	0.027	0.023	3
4	0.1120	0.050	0.040	1/8	3/16	1/8	0.061	0.051	0.056	0.051	0.084	5/32	0.075	0.07	0.030	0.026	4
5	0.1250	1/16	0.050	1/8	3/16	3/16	0.067	0.057	0.062	0.056	0.094	3/16	0.083	0.078	0.033	0.027	5
6	0.1380	1/16	0.050	3/16	3/16	3/16	0.074	0.064	0.069	0.062	0.109	3/16	0.092	0.087	0.038	0.032	6
8	0.1640	5/64	0.062	3/16	1/4	3/16	0.087	0.076	0.082	0.074	0.125	1/4	0.109	0.103	0.043	0.037	8
10	0.1900	3/32	0.075	3/16	1/4	1/4	0.102	0.088	0.095	0.086	0.141	1/4	0.127	0.120	0.049	0.041	10
1/4	0.2500	1/8	0.100	1/4	5/16	5/16	0.132	0.118	0.125	0.114	0.187	5/16	0.156	0.149	0.067	0.059	1/4
5/16	0.3125	5/32	0.125	5/16	7/16	3/8	0.172	0.156	0.156	0.144	0.234	3/8	0.203	0.195	0.082	0.074	5/16
3/8	0.3750	3/16	0.150	3/8	1/2	7/16	0.212	0.194	0.187	0.174	0.281	7/16	0.250	0.241	0.099	0.089	3/8
7/16	0.4375	7/32	0.175	7/16	5/8	1/2	0.252	0.232	0.218	0.204	0.328	1/2	0.297	0.287	0.114	0.104	7/16
1/3	0.5000	1/4	0.200	1/2	5/8	5/8	0.291	0.270	0.25	0.235	0.375	9/16	0.344	0.334	0.130	0.12	1/3
5/8	0.6250	5/16	0.250	5/8	7/8	3/4	0.371	0.347	0.312	0.295	0.469	3/4	0.469	0.456	0.164	0.148	5/8
3/4	0.7500	3/8	0.300	3/4	1	7/8	0.450	0.425	0.375	0.357	0.562	7/8	0.562	0.549	0.196	0.180	3/4
7/8	0.8750	1/2	0.400	7/8	1 1/4	1	0.530	0.502	0.437	0.418	0.656	1	0.656	0.642	0.227	0.211	7/8
1	1.0000	9/15	0.450	1	1 1/4	1 1/4	0.609	0.579	0.500	0.48	0.750	1 1/4	0.750	0.734	0.26	0.240	1

ASME B18.3-Socket Set Screws - Imperial threaded-Cone Point,Dog Point,Flat Point,Cup Point,Oval Point

Thread Size	T.P.I UNC	T.P.I UNF	Head Diameter (Max) A	Head Height (Max) H	Key Engagement (Min) T	Key Size J	Thread Length (Min)	Thread Length (Max)
0		80	0.096	0.060	0.025	0.050	0.50	0.62
1	64	72	0.118	0.073	0.031	1/16	0.62	0.77
2	56	64	0.140	0.086	0.038	5/64	0.62	0.80
3	48	56	0.161	0.099	0.044	5/64	0.62	0.83
4	40	48	0.183	0.112	0.051	3/32	0.75	0.99
5	40	44	0.205	0.125	0.057	3/32	0.75	1.00
6	32	40	0.226	0.138	0.064	7/64	0.75	1.05
8	32	36	0.270	0.164	0.077	9/64	0.88	1.19
10	24	32	0.312	0.190	0.090	5/32	0.88	1.27
1/4	20	28	0.375	0.250	0.120	3/16	1.00	1.50
5/16	18	24	0.469	0.312	0.151	1/4	1.12	1.71
3/8	16	24	0.562	0.375	0.182	5/16	1.25	1.94
7/16	14	20	0.656	0.438	0.213	3/8	1.38	2.17
1/2	13	20	0.750	0.500	0.245	3/8	1.50	2.38
5/8	11	18	0.938	0.625	0.307	1/2	1.75	2.82
3/4	10	16	1.125	0.750	0.370	5/8	2	3.25
7/8	9	14	1.312	0.875	0.432	3/4	2.25	3.69
1	8	12	1.500	1.000	0.495	3/4	2.50	4.12