Welcome to the website of HONGDA FASTENER!

Kill Language

PRODUCTS

Hongda · Provide you with fastener solutions

Home page

Classification

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

Internal Tooth Lock Washers

DIN 6797 J are internal toothed washers that can guarantee discreet locking, in particular on non-flat bearing surfaces.

Key words:

internal tooth lock washers

m12x1 75 socket head cap screw

Cup Head Square Neck Bolts

Hexagon Slotted Castle Nuts DIN 935 1 1987

ISO 4014 Hex Cap Screw Partially Threaded

8 8 Zinc Plated Grade Bare Steel bolts

Classification：

Washers

8613603303992 / 8613930004092

wins@hongdafasteners.com

Inquiry

产品画册

Description

DIN 6797 J are internal toothed washers that can guarantee discreet locking, in particular on non-flat bearing surfaces.

DIN 6797 J Internal Tooth Lock Washers have teeth around the inside circumference that consist of twisted prongs. Suggested for small OD heads like cheese heads, the teeth must contact the underside of the head and the mating surface so avoid oversized holes to ensure maximum effectiveness. Use when the washer's teeth—and surface indentations caused by the teeth—need to hidden. Choose from spring steel with a phosphate finish or zinc plated, and stainless steel. Size is the washer's nominal hole size and should be matched to the screw size (to illustrate, use an M8 washer with an M8 screw). They are also known as DIN 6797 Type J.

Size	2.2	2.7	3.2	3.7	4.3	5.3	6.4	7.4	8.4	10.5
d	min=nominal size		2.2	2.7	3.2	3.7	4.3	5.3	6.4	7.4	8.4	10.5
max		2.34	2.84	3.38	3.88	4.48	5.48	6.62	7.62	8.62	10.77
dc	max=nominal size		4.5	5.5	6	7	8	10	11	12.5	15	18
min		4.2	5.2	5.7	6.64	7.64	9.64	10.57	12.07	14.57	17.57
t	0.3	0.4	0.4	0.5	0.5	0.6	0.7	0.8	0.8	0.9
Number of Teeth	6	6	6	6	8	8	8	8	8	9
per 1000 units≈kg	0.04	0.045	0.045	0.085	0.1	0.2	0.25	0.35	0.55	0.9
For Nominal Thread Diameter	M2	M2.5	M3	M3.5	M4	M5	M6	M7	M8	M10
Size	13	15	17	19	21	23	25	28	31
d	min=nominal size		13	15	17	19	21	23	25	28	31
max		13.27	15.27	17.27	19.33	21.33	23.33	25.33	28.33	31.39
dc	max=nominal size		20.5	24	26	30	33	36	38	44	48
min		19.98	23.48	25.48	29.48	32.38	35.38	37.38	43.38	47.38
t	1	1	1.2	1.4	1.4	1.5	1.5	1.6	1.6
Number of Teeth	10	10	12	12	12	14	14	14	14
per 1000 units≈kg	1.2	1.9	2.4	3.7	4.1	6	6.5	8.5	9.5
For Nominal Thread Diameter	M12	M14	M16	M18	M20	M22	M24	M27	M30

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