304 316 Stainless Steel DIN6798A Serrated Lock Washer with External Teeth

• Customization: Available
• Type: Lock Washer
• Material: Stainless Steel
• Model NO.: DIN 6798A
• Combination Washer Structure: A Type
• Combination Washer Packaging: All Inclusive
• Spring Washer Type: Standard
• Standard: DIN6798j
• Drawings: Accept
• Shape: with External Teeth
• Sample: in Stock
• Application: Prevent Slippery Lock
• Shipment: EXW, Fob, CIF
• Delivery Time: 3-10 Working Days
• Experience: for 30 Years
• Surface Treatment: Plain, Hot DIP Galvanized
• Transport Package: Plastic Bag, Boxes and Cartons, Pallets, Customize
• Specification: M1.7-M31
• Trademark: Tengri
• Origin: China
• HS Code: 7318290000
• Production Capacity: 2000000pieces/Year
• Package Size: 25.00cm * 7.50cm * 17.00cm
• Package Gross Weight: 0.500kg

Product Description

304 316 Stainless Steel DIN6798A Serrated Lock Washer with External Teeth 

Standard	DIN6798A
Inside Diameter	M1.7-M31
Outside Diameter	4-48mm
Material	65Mn steel,SS304,SS316,SS2205,SS2507
MOQ	1000
Surface treatment	Plain, black oxide
Package	Plastic bag, Boxes and cartons, Pallets, Customized
Price terms	EXW, FOB, CIF, etc.
Payment terms	T/T, Paypal, L/C, Western union, etc.
Certifications	ISO 9001
Note	Free Samples could be provided for standard fastener

 

Product Details

What is Metric DIN 6798 Serrated Lock Washer?

that are available in Form A (external serrations), Form J (Internal serrations) and  Form V (conical for countersunk head screws).

 

Form A has teeth on the outer edge the washer allowing for maximum contact on the biggest possible surface area. The teeth are superimposed on one another maximizing the friction between the surface of the substrate and fastener.
 

Form J has teeth that extend inward from the inside edge of the washer and is recommended when the head of the screw is smaller than the diameter washer or when the surface of the fastener is irregular or convex.
 

Form V is conical in shape with teeth extending outwards and is used with countersunk head screws with a 90degree countersink.

 

Size			1.7	2.2	2.7	3.2	3.7	4.3	5.3	6.4	7.4	8.4
d	min=nominal size		1.7	2.2	2.7	3.2	3.7	4.3	5.3	6.4	7.4	8.4
	max		1.84	2.34	2.84	3.38	3.88	4.48	5.48	6.62	7.62	8.62
dc	max=nominal size		3.6	4.5	5.5	6	7	8	10	11	12.5	15
	min		3.3	4.2	5.2	5.7	6.64	7.64	9.64	10.57	12.07	14.57
t			0.3	0.3	0.4	0.4	0.5	0.5	0.6	0.7	0.8	0.8
Number of Teeth	min		9	9	9	9	10	11	11	12	14	14
per 1000 units≈kg			0.02	0.03	0.045	0.06	0.11	0.14	0.28	0.36	0.5	0.8
For Nominal Thread Diameter			M1.6	M2	M2.5	M3	M3.5	M4	M5	M6	M7	M8
Size			10.5	13	15	17	19	21	23	25	28	31
d	min=nominal size		10.5	13	15	17	19	21	23	25	28	31
	max		10.77	13.27	15.27	17.27	19.33	21.33	23.33	25.33	28.33	31.39
dc	max=nominal size		18	20.5	24	26	30	33	36	38	44	48
	min		17.57	19.98	23.48	25.48	29.48	32.38	35.38	37.38	43.38	47.38
t			0.9	1	1	1.2	1.4	1.4	1.5	1.5	1.6	1.6
Number of Teeth	min		16	16	18	18	18	20	20	20	22	22
per 1000 units≈kg			1.25	1.6	2.3	2.9	5	6	7.5	8	12	14
For Nominal Thread Diameter			M10	M12	M14	M16	M18	M20	M22	M24	M27	M30
1),Material see "Relevant material standards and grades". Steel grade being at the manufacturer's discretion. Hardness: 350 to 425 HV10

Product Description

 

Finish & Application

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Company Profile

Tengri fasteners Group is an OEM Fasteners Manufacturing, Plating/ Finishing and Industrial Production Company. Over 30 years of manufacturing stainless steel fasteners, industry experience and construction of state-of-art facility. We can offer the most common stainless steel fasteners or specially designed fasteners to exceed our customer's expectations, as our vendors are the best name brands in the industry.

Tengri fasteners group employs more than 3000 employees and consists of one lab and software center, 3 wholly owned subsidiary of Factory and 5 warehouse stocking locations. Our extensive products line and our fast and friendly sales representatives are able to satisfy our customer demands.

As a veritable "one- stop shop", Tengri Fasteners offers same day delivery of in-stock items and a wide a wide variety of supply chair solutions tailored to the needs of our customers. Our custom inventory control programs provide extensive cost saving to our customers.


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Customers

Our Service

a)  Good after-sale service, all questions will be replied within 12 hours.

b)  Customized design is available. ODM&OEM are welcomed.

c)  We can provide free sample, consumer should pay the freight first.

d)  Convenient transportation and fast delivery, all available shipping ways could be     applied, by express, air or sea. 

e)  High quality and most competitive price.

f)  Advanced produce and inspecting equipments.

Packaging & Transportation

FAQ

1.Can I order a small list ?

---Of course, you can.

2.What quote do you offer?
---FOB , CIF and others ways according the your needs.
 
3.How transport?
---Sea Freight, Air Freight and others Express Delivery ways for you.
 
4.What is the quality of your products guarantee?
---We have passed ISO9001:2015 Quality Management System Certification, CQM Quality Management System Certification and IQNet Quality Management System Certification, If the quality doesn't  accord the standard, you can exchange the goods for free.
 
5.Do you have after-sales service?
---Certainly,you can contact us at any time.