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Hot Products

Square Head Bolt Din Standard

Eye Bolts DIN 444 - 2017

8.8 Grade High-Strength Hexagon Bolt

DIN 931 Hexagon Head Cap Screws/Bolts Part Thread

EN 14399 (-10 Cup) Torshear Type High Strength Bolt

Zinc-Plated Carbon Steel Concrete Bolts M10 X75mm

Square Washers DIN 436 - 1990

Square washers are square in shape and may be flat on both sides or flat on one side and beveled on one side. Often used with square head bolts, square washers prevent pull through and provide a larger surface area and greater hold than standard round flat washers.

Key words:

square washers din 436 - 1990

DIN 6319C Conical Seat Bare Steel

Nuts

DIN 931 Hexagon head bolts

hex screw 8 8

DIN 7991 Flat Head Countersunk Socket

DIN 137A Curved Sping Zinc Plated

Classification：

Washers

8613603303992 / 8613930004092

wins@hongdafasteners.com

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Description

Grade:4/6/8/10/12

Finish:ZINC, Plain, Black

Material: Stainless steel, carbon steel and other metal materials

Washer Standard : DIN, ISO, JIS, GB, IS, BS, ASTM

For Nominal Thread Diameter		M10	M12	M16	M20	M22	M24	M27	M30	M33	M36	M39	M42	M45	M48	M52
d	min=nominal size	11	13.5	17.5	22	24	26	30	33	36	39	42	45	48	52	56
d	max	11.43	13.93	18.2	22.84	24.84	26.84	30.84	34	37	40	43	46	49	53.2	57.2
s	max=nominal size	30	40	50	60	70	80	90	95	100	110	125	135	140	150	160
s	min	28.7	38.4	48.4	58.1	68.1	78.1	87.8	92.8	97.8	107.8	122.5	132.5	137.5	147.5	157.5
h	Nominal Size	3	4	5	5	6	6	6	6	6	8	8	8	8	10	10
	max	3.6	4.6	6	6	7	7	7	7	7	9.2	9.2	9.2	9.2	11.2	11.2
	min	2.4	3.4	4	4	5	5	5	5	5	6.8	6.8	6.8	6.8	8.8	8.8
per 1000 units ≈ kg		20	45.7	88.7	126	209	275	348	385	423	685	895	1050	1120	1600	1820

Equipment

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.

Qualification