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This product is regulated by the following standards:

DIN EN ISO 4028 (Equivalent standards: BS EN ISO 4028, ISO 4028, UNI EN ISO 4028) DIN 915

Technical data

DIN EN ISO 4028
DIN 915

Standard DIN EN ISO 4028

Equivalent standards:

BS EN ISO 4028
ISO 4028
UNI EN ISO 4028

This international standard (DIN EN ISO 4028) specifies the characteristics of hexagon socket set screws with dog point and threads from M1,6 up to and including M24 and of product grade A. These set screws used for permanent location of one part to another. The point is normally spotted in a hole drilled in a shaft or on a flat surface milled on the shaft.

The main materials used for the production of set screws are: AISI 420 (48-52 HRC) top mechanical properties and corrosion resistance; 45 H (14.9) standard and heavy-duty applications; 33H (12.9) 22H (8.8) used in applications where moderate stress is requested, large diameters; 21H STAINLESS STEEL A2-A4 excellent corrosion strength and heat resistance; 14H (4.6) for applications where moderate stress is required, threaded pins.

Dimensions in mm - source DIN EN ISO 4028
Publication date: 05 - 2004 Replaces: DIN 915 12 - 1980
d thread size	P	d1 max	s nom	e min	t min (depending on l)	z max short	z min short	z max long	z min long
M 1.6	0.35	0.8	0.7	0.809	0.7÷1.5	0.65	0.4	1.05	0.8
M 2	0 .4	1	0.9	1.011	0.8÷1.7	0.75	0.5	1.25	1
M 2.5	0.45	1.5	1.3	1.454	1.2÷2	0.88	0.63	1.5	1.25
M 3	0.5	2	1.5	1.73	1.2÷2	1	0.75	1.75	1.5
M 4	0.7	2.5	2	2.3	1.5÷2.5	1.25	1	2.25	2
M 5	0.8	3.5	2.5	2.87	2÷3	1.5	1.25	2.75	2.5
M 6	1	4	3	3.44	2÷3.5	1.75	1.5	3.25	3
M 8	1.25	5.5	4	4.58	3÷5	2.25	2	4.3	4
M 10	1.5	7	5	5.72	4÷6	2.75	2.5	5.3	5
M 12	1.75	8.5	6	6.86	4.8÷8	3.25	3	6.3	6
M 16	2	12	8	9.15	6.4÷10	4.3	4	8.36	8
M 20	2.5	15	10	11.43	8÷12	5.3	5	10.36	10
M 24	3	18	12	13.72	10 ÷15	6.3	6	12.43	12

DIN EN ISO 4028 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial lengths
Thread size	M1.6	M2	M2.5	M3	M4	M5	M6	M8	M10	M12	M16	M20	M24
nominal length l
2	0.024
2.5	0.028	0.046
3	0.029	0.53	0.085
4	0.037	0.059	0.11	0.12
5	0.46	0.074	0.125	0.161	0.239
6	0.54	0.089	0.15	0.186	0.319	0.528
8	0.07	0.119	0.199	0.266	0.442	0.708	1.07	1.68
10		0.148	0.249	0.346	0.602	0.948	1.29	2.31	3.6
12			0.299	0.427	0.763	1.19	1.63	2.68	4.78	6.06
16				0.586	1.08	1.67	2.31	3.94	6.05	8.94	15
20					1.4	2.15	2.99	5.2	8.02	11	20.3	28.3
25						2.75	3.84	6.78	10.5	14.6	25.1	38.6	55.4
30							4.69	8.35	13	18.2	31.7	45.5	69.9
35								9.93	15.5	21.8	38.3	55.8	78.4
40								11.5	18	25.4	44.9	66.1	92.9
45									20.5	29	51.5	76.4	107
50									23	32.6	58.1	86.7	122
55										36.2	64.7	97	136
60										39.8	71.3	107	151

Standard DIN 915

Dimensions in mm - source DIN 915
Publication date 12 - 1980 - Supersedes DIN 915: 01 - 1973
d thread size	P	d1 max	d1 min	s nom	e min	t (depending on l)	z min.	z max.
M 1.4	0.3	0.7	0.45	0.7	0.803	0.6÷1.4	0.8	1.05
M 1.6	0.35	0.8	0.55	0.7	0.803	0.7÷1.5	0.8	1.05
M 1.8	0.35	0.9	0.65	0.7	0.803	0.8÷1.6	1	1.25
M 2	0 .4	1	0.75	0.9	1.003	0.8÷1.7	1	1.25
M 2.5	0.45	1.5	1.25	1.3	1.427	1.2÷2	1.25	1.5
M 3	0.5	2	1.75	1.5	1.73	1.2÷2	1.5	1.75
M 4	0.7	2.5	2.25	2	2.3	1.5÷2.5	2	2.25
M 5	0.8	3.5	3.2	2.5	2.87	2÷3	2.5	2.75
M 6	1	4	3.7	3	3.44	2÷3.5	3	3.25
M 8	1.25	5.5	5.2	4	4.58	3÷5	4	4.3
M 10	1.5	7	6.64	5	5.72	4÷6	5	5.3
M 12	1.75	8.5	8.14	6	6.86	4.8÷8	6	6.3
M 14	2	10	9.64	6	6.86	5.6÷9	7	7.36
M 16	2	12	11.57	8	9.15	6.4÷10	8	8.36
M 18	2.5	13	12.57	10	11.43	7.2÷11	9	9.86
M 20	2.5	15	14.57	10	11.43	8 ÷12	10	10.36
M 22	2.5	17	16.57	12	13.72	9÷13.5	11	11.43
M 24	3	18	17.57	12	13.72	10÷15	12	12.43

DIN 915 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial lengths
Thread size	M1.4	M1.6	M1.8	M2	M2.5	M3	M4	M5	M6	M8	M10	M12	M14	M16	M18	M20	M22	M24
nominal length l
3	0.022	0.029
4	0.029	0.037	0.048	0.059	0.10
5	0.035	0.46	0.06	0.074	0.125	0.163
6	0.043	0.56	0.072	0.089	0.15	0.186	0.292
8				0.119	0.199	0.276	0.442	0.708	1.02
10				0.148	0.249	0.366	0.592	0.948	1.29	2.28
12						0.427	0.742	1.19	1.63	2.68	4.41
16						0.636	1.04	1.67	2.34	3.94	6.05	8.91
20						0.816	1.34	2.15	3.04	5.2	8.02	11		20.1
25								2.75	3.92	6.79	10.5	14.6		25.1		38.9
30									4.8	8.38	13	18.2		31.9		45.5		67.7
35										9.97	15.5	21.8		38.2		55.8		78.4
40										11.6	18	25.4		44.9		66.1		92.4
45																76.4		108
50																86.7		123
55																		138
60																		153

Socket set screws with dog point

Dimensions in mm - source DIN 4028
Publication date: 05/2004 Replaces: DIN 915 12/1980
d thread size	P	d1 max	s nom	e min	t min (depending on l)	z max short	z min short	z max long	z min long
M 1.6	0.35	0.8	0.7	0.809	0.7÷1.5	0.65	0.4	1.05	0.8
M 2	0 .4	1	0.9	1.011	0.8÷1.7	0.75	0.5	1.25	1
M 2.5	0.45	1.5	1.3	1.454	1.2÷2	0.88	0.63	1.5	1.25
M 3	0.5	2	1.5	1.73	1.2÷2	1	0.75	1.75	1.5
M 4	0.7	2.5	2	2.3	1.5÷2.5	1.25	1	2.25	2
M 5	0.8	3.5	2.5	2.87	2÷3	1.5	1.25	2.75	2.5
M 6	1	4	3	3.44	2÷3.5	1.75	1.5	3.25	3
M 8	1.25	5.5	4	4.58	3÷5	2.25	2	4.3	4
M 10	1.5	7	5	5.72	4÷6	2.75	2.5	5.3	5
M 12	1.75	8.5	6	6.86	4.8÷8	3.25	3	6.3	6
M 16	2	12	8	9.15	6.4÷10	4.3	4	8.36	8
M 20	2.5	15	10	11.43	8÷12	5.3	5	10.36	10
M 24	3	18	12	13.72	10 ÷15	6.3	6	12.43	12

DIN 4028 - Approximate mass, in kg x1000 pcs, (ρ=7,85 kg/dm³) - commercial lengths
Thread size	M1.6	M2	M2.5	M3	M4	M5	M6	M8	M10	M12	M16	M20	M24
nominal length l
2	0.024
2.5	0.028	0.046
3	0.029	0.53	0.085
4	0.037	0.059	0.11	0.12
5	0.46	0.074	0.125	0.161	0.239
6	0.54	0.089	0.15	0.186	0.319	0.528
8	0.07	0.119	0.199	0.266	0.442	0.708	1.07	1.68
10		0.148	0.249	0.346	0.602	0.948	1.29	2.31	3.6
12			0.299	0.427	0.763	1.19	1.63	2.68	4.78	6.06
16				0.586	1.08	1.67	2.31	3.94	6.05	8.94	15
20					1.4	2.15	2.99	5.2	8.02	11	20.3	28.3
25						2.75	3.84	6.78	10.5	14.6	25.1	38.6	55.4
30							4.69	8.35	13	18.2	31.7	45.5	69.9
35								9.93	15.5	21.8	38.3	55.8	78.4
40								11.5	18	25.4	44.9	66.1	92.9
45									20.5	29	51.5	76.4	107
50									23	32.6	58.1	86.7	122
55										36.2	64.7	97	136
60										39.8	71.3	107	151

Full list of Suppliers of Socket set screws with dog point

China

Beijing KOJO Technology Co.,Ltd.

Founded in 2001, KOJO Fastening is a manufacturer and supplier specializing in screw fasteners and precision CNC machined parts.

We export screws, nuts, precision turned parts, and other products to customers worldwide. The KOJO Fastening team, with deep industry expertise, advanced processing equipment, technological refinement, a pursuit of excellent quality, and a customer-first vision, has made us the preferred supplier for an increasing number of international clients.

Italy

ARSER SRL

Manufacturer of high quality threaded set screws

China

ASUDA FASTENER

Manufacturer and supplier of machine screws, tapping screws, set screws in stainless steel

Germany

Böllhoff GmbH

Worldwide manufacturer of special fasteners and automatic assembly machines, wholesaler and supplier of fasteners in steel, stainless steel, brass and plastic.

The assortment includes more than 100,000 items: DIN and standard items, threaded inserts, Normteile, Gewindeeinsätze, fast fixings, adhesives and custom-special parts both in steel and plastic.

Germany

Ebinghaus GmbH Schilt Group

Manufacturer of standard and special set screws from M1.6 to M42, turned fasteners and cold forged parts. Supplier of thread locking coatings, sealings and surface treatments.

Germany

JUBA-Schrauben Ulrich KG

Manufacturer of threaded plugs, set screws, turned fasteners and special screws as per drawing

Germany

Karl Schilt GmbH + Co. KG Metallwarenfabrik

Manufacturer of standard and special set screws from M1.6 to M42, turned fasteners and cold forged parts. Supplier of thread locking coatings, sealings and surface treatments.

India

Micron Precision Screws Ltd

Manufacturer of socket head screws, shoulder screws and dowel pins ranging from 4mm to 40mm diameter and lengths up to 400 mm in various grades (4.6, 5.6, 8.8, 10.9, 12.9, and 14.9).

Taiwan

Multi-Tek Fasteners & Parts Manufacturer Corp.

Manufacturer specialized in set screws with socket and slot. Inches and metric sizes

Estonia

NB Quality Group LTD

Products in different product groups: Cleaning, Lubrication, Surface Treatment, Glues, Tapes, Electrical and Additives.

China

Ningbo Beilun Huashen Set-Screws Co.Ltd.

Manufacturer of set screws in steel, stainless steel, brass and alloys.

Torx set screws, socket set screws ball point, knurled cup point, cone point, dog point.

Italy

Ruggeri Srl

Manufacturer and distributor of socket set screws, both forged and turned ISO 4026/4027/4028/4029 fine and coarse pitch, standard and special

Germany

SCHOLZ MECHANIK GmbH

Manufacturer of high pecision parts, bush, clamps, fixings

China

Shanghai Jingyang Import & Export Co. Ltd

Manufacturer of Self-Clinching nuts, Self-Clinching Standoffs, Self-Clinching Studs, Panel Fastener Assemblies, Threaded Inserts.Welding nuts, Crown screw, Self-tapping screw, Flare-in panel fastener, Self-tapping threaded inserts, Blind rivets, rivet nuts,cage nuts and various type of customized special parts.

Italy

The portal for fasteners and fixing elements

Suppliers of Socket set screws with dog point

Technical data

Standard DIN EN ISO 4028

Standard DIN 915

Details

Beijing KOJO Technology Co.,Ltd.

ARSER SRL

ASUDA FASTENER

Böllhoff GmbH

Ebinghaus GmbH Schilt Group

JUBA-Schrauben Ulrich KG

Karl Schilt GmbH + Co. KG Metallwarenfabrik

Micron Precision Screws Ltd

Multi-Tek Fasteners & Parts Manufacturer Corp.

NB Quality Group LTD

Ningbo Beilun Huashen Set-Screws Co.Ltd.

Ruggeri Srl

SCHOLZ MECHANIK GmbH

Shanghai Jingyang Import & Export Co. Ltd

SPEED BOLT SRL

TAISHAN DY hardware Co.Ltd

Trex

TUZ Maudle Cor.

UNBRAKO - Deepak Fasteners Ltd.

YI CHUN Enterprise Co. Ltd. (FoohMing)

Zhejiang Kaisheng Hardware Co. Ltd