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DIN 127 Spring Lock Washers

DIN 127 (B) - 1987 Spring Lock Washers, With Square Ends -B type DIN 127 (A) - 1987 Spring Lock Washers, With Tang Ends-A type Send Inquiry

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DIN 127 Spring Lock Washers

8.8 Grade Bare Steel / Zinc Plated

12.9 Steel Hex Cap Screws

DIN 137A Curved Sping Zinc Plated

DIN 9021B Fender Zinc Plated

Flange Nuts

DIN 6319C Conical Seat Bare Steel

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Washers

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Description

DIN 7980 Specifications

All measurements in millimeters (mm)

d1	used for	s	d2
3.1	M3	1	5.6
4.1	M4	1.2	7
5.1	M5	1.6	8.8
6.1	M6	1.6	9.9
8.1	M8	2	12.7
10.2	M10	2.5	16
12.2	M12	2.5	18
14.2	M14	3	21.1
16.2	M16	3.5	24.4
18.2	M18	3.5	26.4
20.2	M20	4.5	30.6
22.5	M22	4.5	32.9
24.5	M24	5	35.9
27.5	M27	5	38.9
30.5	M30	6	44.1
33.5	M33	6	47.1
36.5	M36	7	52.2

The principle of anti-loosening of spring washers:

The principle of the loose stop of the spring washer is that after the spring washer is flattened, the spring washer generates a certain spring force, so that the screw connection part of the nut and the bolt maintains friction, thereby preventing the loosening of the nut. At the same time, the acute corners of the opening of the spring washer are respectively inserted into the surface of the bolt and the connecting member, thereby preventing the bolt from rotating the connecting member.

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FAQ

Who are we?

Handan Yongnian Hongda fastener Manufacturing Co., Ltd. is located in Yongnian, Handan of fasteners in my country, adjacent to the Beijing-Guangzhou Line, Jingjiu Expressway and Qinghong Expressway intersection, with convenient transportation.

How do we guarantee quality?

our factory successfully passed the ISO9001:2015 international quality system certification. In the future development, the company will continue to adhere to the quality policy of "continuous improvement, striving for excellence and innovation", cooperate wholeheartedly with customers and merchants with strong technical force, equipment force and economic strength, and go hand in hand to create brilliant new achievements.

What can you buy from us?

The company mainly produces bolts, nuts, anchor bolts, screws,stud bolts ,customized special-shaped parts, etc. The products can be produced according to the national international standard (ISO), German standard (DIN), American standard ( ANSI/ASME), British standard (BS) and Japanese standard (JIS).

Why do you want to buy from us instead of other suppliers?

It has more than 20 sets of advanced equipment and an annual output of more than 10,000 tons of high-quality products. The products are sold to more than a dozen countries in the Middle East, Europe, South Korea, and Southeast Asia. "Hongda products, high quality and good price" is the production tenet of our company.

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