DIN 444 Swing Eyebolts

What is a DIN 444 Swing Eyebolt?

DIN 444 defines a type of eye bolt featuring a circular eye head and threaded shank, designed specifically for articulated connections rather than load lifting. For lifting applications, DIN 580 eye bolts should be used instead.

The DIN 444 standard for swing bolts was established by the German Institute for Standardization (DIN) to specify requirements for the design, material, dimensions, surface treatment, and mechanical properties of swing bolts.

Swing bolts are typically made of carbon steel or stainless steel, and surface treatments include galvanizing, hot-dip galvanizing, and powder coating. Their dimensional standards follow the metric system, covering bolt diameter, thread length, and thread type.

DIN 444 swing bolts are primarily used in applications requiring the adjustment or fastening of components, such as machinery, vehicles, and building structures. Their design features a swivel joint connection, offering significant angular adjustment capability to accommodate various installation requirements. Additionally, these bolts exhibit good seismic resistance, fatigue resistance, and corrosion resistance.

As a professional DIN 444 eye bolt manufacturer and supplier, we provide high-precision products in carbon steel, stainless steel, and alloy steel, supporting OEM customization and global bulk supply.

Key Features of DIN 444 Swing Eyebolts

• Manufactured according to DIN 444 standard
• Metric thread sizes from M5 to M39
• Available in full thread or partial thread
• Smooth pivoting design with precision-machined eye
• Suitable for non-lifting applications
• Corrosion-resistant surface treatments available
• Custom sizes and OEM production supported

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DIN 444 Swing Eyebolts Specifications

Parameter	Specification
Standard	DIN 444
Thread Type	Metric
Size Range	M5 – M39
Thread Style	Full Thread / Partial Thread
Material	Carbon Steel / Stainless Steel / Alloy Steel
Strength Grade	4.6 / 5.6 / 8.8 / A2-70 / A4-80
Surface Treatment	Zinc Plated / HDG / Black Oxide
Manufacturing Process	Cold Forging / CNC Machining

DIN 444 Swing Eyebolts Size Chart

Equivalent norms: CSN 021167, PN 82425, UNI 6058.

Type A

(mm)	P	d1 max	d1 min	dk max	dk min	s max	s min	ds max
M5	0.8	5.03	5	12	10.9	8	7.52	5
M6	1	6.03	6	14	12.9	9	8.52	6
M8	1.25	8.036	8	18	16.9	11	10.3	8
M10	1.5	10.036	10	20	18.7	14	13.3	10
M12	1.75	12.043	12	25	23.7	17	16.3	12
M16	2	16.043	16	32	30.4	19	18.16	16
M20	2.5	18.043	18	40	38.4	24	23.16	20
M24	3	22.052	22	45	43.4	28	27.16	24
M27	3	25.052	25	50	48.4	30	29.16	27
M30	3.5	28.052	28	55	53.1	34	33	30
M33	3.5	30.052	30	60	58.1	38	37	33
M36	4	32.062	32	65	63.1	41	40	36
M39	4	35.062	35	70	68.1	46	45	39

Type B

(mm)	P	d1 max	d1 min	dk max	dk min	s max	s min	ds max
M5	0.8	5.03	5	12	11.57	6	5.88	5
M6	1	6.03	6	14	13.57	7	6.85	6
M8	1.25	8.036	8	18	17.57	9	8.85	8
M10	1.5	10.036	10	20	19.48	12	11.82	10
M12	1.75	12.043	12	25	24.48	14	13.82	12
M16	2	16.043	16	32	31.38	17	16.82	16
M20	2.5	18.043	18	40	39.38	22	21.79	20
M24	3	22.052	22	45	44.38	25	24.79	24
M27	3	25.052	25	50	49.38	27	26.79	27
M30	3.5	28.052	28	55	54.26	30	29.79	30
M33	3.5	30.052	30	60	59.26	34	33.75	33
M36	4	32.062	32	65	64.26	38	37.75	36
M39	4	35.062	35	70	69.26	41	40.75	39

Type C

(mm)	P	d1 max	d1 min	dk max	dk min	s max	s min	ds max
M5	0.5|0.8	5.03	5	12	11.57	6	5.88	5
M6	0.75|1	6.03	6	14	13.57	7	6.85	6
M8	1|1.25	8.036	8	18	17.57	9	8.85	8
M10	1|1.25|1.5	10.036	10	20	19.48	12	11.82	10
M12	1|1.25|1.5|1.75	12.043	12	25	24.48	14	13.82	12
M16	1|1.5|2	16.043	16	32	31.38	17	16.82	16
M20	1.5|2|2.5	18.043	18	40	39.38	22	21.79	20
M24	1.5|2|3	22.052	22	45	44.38	25	24.79	24
M27	1.5|2|3	25.052	25	50	49.38	27	26.79	27
M30	1.5|2|3.5	28.052	28	55	54.26	30	29.79	30
M33	1.5|2|3.5	30.052	30	60	59.26	34	33.75	33
M36	1.5|2|3|4	32.062	32	65	64.26	38	37.75	36
M39	1.5|2|3|4	35.062	35	70	69.26	41	40.75	39

Applications of DIN 444 Swing Eyebolts

DIN 444 eyebolts are widely used in industries where adjustability and pivoting functionality are required.

• Gate and door hinge systems
• Mechanical fixtures and jigs
• Adjustable tensioning systems
• Construction and structural connections
• Automotive assemblies
• Industrial machinery

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