NFE25511 Pin Lock Washer Serrated Conical Spring 18mm Carbon Steel Grooved

M18 NFE25511 Carbon Steel Grooved Conical Serrated Disc Spring Washers Knurling Disc Spring Lock Washers French standard washers Disc Serrated Self-locking Washers
French standard washer is also called serrated disc washer or  Knurling disc washer. They are used on bolts or screws. After installing a spring washer, the contact area is increased, which can disperse pressure and protect the surface of the connected parts from being damaged. 
The washers are widely used in electric control cabinet, electrical equipment, railway, subway, mechanical and electrical equipment, communication equipment, elevator, rolling stock assembly, medical machinery and equipment and special equipment assembly industry, etc.

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FAQ

Q: Are you trading company or manufacturer?

A: We are factory.

Q: What is your payment method?
A: T/T. For small order less than 1000USD, 100% in advance to reduce the bank charges. For order more than 1000USD, 30% in advance and balance before shipment.

Q: Can you provide a sample?
A: Yes, our sample is provided free of charge, but not including the cost of freight.

Q: What's your delivery time?
A: Generally 15 days if the goods are in stock. If not in stock we’ll need 30 working days to produce. It depends on quantity.

Q: How to Custom-made?
A: If you have a new product drawing or a sample, please send to us, and we can custom-made for you. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.

Q: Which mode of transport would be better?
A: In general, we advice to make delivery by sea. Also we respect your views of other transportation as well.