Wholesale DIN 71803:1988 Ball Joint Pin

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DIN 71803:1988 Ball Joint Pin

DIN 71803:1988 Ball Joint Pin is characterized by a ball joint pin structure and is intended for mechanical connections involving ball joints, linkages, and angular movement.

The spherical end helps accommodate angular misalignment, while the pin body provides connection and guidance, improving flexibility and assembly tolerance in motion systems. In assembly, the design helps reduce supporting operations, improve positioning consistency, and maintain good interchangeability in repeated production or field service.

Typical applications include gas spring end fittings, linkage mechanisms, vehicle accessories, automation fixtures, and light mechanical joints. The product can be configured with ball diameter, pin diameter, surface hardening, and corrosion protection to suit indoor, outdoor, light-load, vibration-exposed, or export supply conditions.

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Dimensions unit: inch 

Specification

6

8

8

10

10

13

13

16

16

19

19

dk

Max.

6

8

8

10

10

13

13

16

16

19

19

Min.

5.97

7.964

7.964

9.964

9.964

12.957

12.957

15.957

15.957

18.948

18.948

L1

Nominal

3.5

4

7.5

4.5

8

5

10

6

13

12

18

Max.

3.7

4.2

7.7

4.7

8.2

5.2

10.2

6.2

13.2

12.2

18.2

Min.

3.3

3.8

7.3

4.3

7.8

4.8

9.8

5.8

12.8

11.8

17.8

h

Max.

2.4

2.4

2.4

2.6

2.6

2.8

2.8

3.1

3.1

3.4

3.4

Min.

2

2

2

2.2

2.2

2.4

2.4

2.7

2.7

3

3

d2

-

M5

M5

M6

M6

M8

M8

M10

M10

M14X1.5

M14X1.5

dc

Max.

6

8

8

10

10

13

13

16

16

19

19

Min.

5.7

7.64

7.64

9.64

9.64

12.57

12.57

15.57

15.57

18.48

18.48

d4

Nominal

3

4

4

5

5

6.5

6.5

8

8

10

10

Max.

3.2

4.2

4.2

5.2

5.2

6.7

6.7

8.2

8.2

10.2

10.2

Min.

2.8

3.8

3.8

4.8

4.8

6.3

6.3

7.8

7.8

9.8

9.8

d5

Max.

4

5

5

6

6

8

8

10

10

14

14

Min.

3.925

4.925

4.925

5.925

5.925

7.91

7.91

9.91

9.91

13.89

13.89

L2

Nominal

-

10.2

10.2

12.5

12.5

16.5

16.5

20

20

28

28

Max.

-

10.5

10.5

12.8

12.8

16.8

16.8

20.3

20.3

28.3

28.3

Min.

-

9.9

9.9

12.2

12.2

16.2

16.2

19.7

19.7

27.7

27.7

L3

Nominal

9.2

12.5

12.5

15.5

15.5

18.5

18.5

23

23

28.5

28.5

Max.

9.5

12.8

12.8

15.8

15.8

18.8

18.8

23.3

23.3

28.8

28.8

Min.

8.9

12.2

12.2

15.2

15.2

18.2

18.2

22.7

22.7

28.2

28.2

L4

Max.

-

4

4

4

4

5.3

5.3

7.3

7.3

10.8

10.8

SW

Applicable to C

-

7

7

8

8

11

11

13

13

16

16

Weight per thousand pieces kg

Type A,C

-

4.55

4.55

8.5

8.5

17.7

17.7

35.1

35.1

71.2

71.2

Type B

1.9

3.85

4.35

7.1

7.8

14.2

16

23.5

29.6

56.2

63.7

FAQ

Frequently Asked Questions

  • 1. How soon can I expect a reply after sending an inquiry?

    A: We take every inquiry seriously. On working days, we will respond within 12 hours after receiving your inquiry.

  • 2. What products do you mainly offer?

    A: We focus on the production of fasteners made of carbon steel, stainless steel, and low-alloy steel. We are a direct manufacturer with independent production capacity. DIN 71803:1988 Ball Joint Pin Factory. We own several fastener manufacturing facilities and have an international sales department, providing full-process services from production to export.

  • 3. Do you support customized production?

    A: Customized production is our core business. We can develop and manufacture products based on the drawings or samples you provide.

  • 4. Do you produce standard parts?

    A: Yes. In addition to custom products, we also produce general construction machinery parts (GET parts) for equipment such as excavators, including bucket teeth, tooth holders, corner blades, pins, clips, bolts and nuts. DIN 71803:1988 Ball Joint Pin Wholesale.

  • 5. What is your production capacity?

    A: We have 12 energy-efficient and environmentally friendly modern production lines (including one fully automatic shell molding line and four heat treatment lines), with an annual production capacity exceeding 20,000 tons, enabling us to steadily meet various order requirements.

  • 6. What are your payment terms?

    A: Trade terms (such as FOB, CIF, etc.) are confirmed when quoting. For batch production, we typically require a 30% deposit, with the balance paid against the copy of the bill of lading. T/T is the main payment method accepted, and L/C can also be negotiated.

  • 7. How is the shipment arranged?

    A: We are only 35 km away from Shanghai Port and Ningbo Port, so sea freight is the main mode of transportation, which is convenient and efficient. For urgent deliveries, we can also arrange air freight via Ningbo or Shanghai airports.

Better Fastener Industry Co., Ltd.

About Us

BETTER FASTENER INDUSTRY CO., LTD.

Better Fastener is a professional fastener enterprise specializing in the manufacturing of steel washers, stainless steel washers, spring washers and sealingwashers. Founded in 2001 as a washer factory, the company expanded into a comprehensive enterprise integrating washers, nuts, bolts, spring nuts and other fastener products in 2010. DIN 71803:1988 Ball Joint Pin Suppliers in China.

The company positions itself as a provider of comprehensive one-stop services for customers, relying on technological R&D, industrial investment and trade distribution.

With an experienced professional team and a sound sales network, Better Fastener has achieved excellent sales performance in both domestic and foreign markets,and has grown into one of the competitive manufacturers and suppliers in China's industrial fastener industry.

Better Fastener is committed to becoming a trusted fastener supplier for customers with reliable product quality, reasonable prices and on-time delivery

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