ASME B 18.21.3 - 2008 Double Coil Helical Spring Lock Washers Flat Washers
Specification
Internal Tab Washers:The material of the inner tongue stop washer is low carbon steel, medium carbon steel, 65 manganese, stainless steel, aluminum, copper, insulating material, etc. Surface treatment using blue and white zinc plating, color zinc, black zinc, nickel, chromium, blackening, mechanical galvanizing, plating dacro, quenching, tempering, carburizing, etc.
| DN |
3/8 |
1/2 |
5/8 |
3/4 |
7/8 |
1 |
| d |
| d |
DN |
0.375 |
0.5 |
0.625 |
0.75 |
0.875 |
1 |
| Min |
0.385 |
0.51 |
0.635 |
0.76 |
0.885 |
1.01 |
| Max |
0.408 |
0.535 |
0.66 |
0.791 |
0.915 |
1.04 |
| dc |
Max |
0.814 |
1.035 |
1.284 |
1.415 |
1.808 |
1.928 |
| a |
Min |
30° |
30° |
30° |
30° |
30° |
30° |
| Max |
35° |
35° |
35° |
35° |
35° |
35° |
| H |
Min |
0.53 |
0.53 |
0.785 |
0.785 |
0.86 |
0.86 |
| w |
Min |
0.196 |
0.243 |
0.302 |
0.302 |
0.437 |
0.437 |
| n |
Max |
0.145 |
0.145 |
0.22 |
0.22 |
0.229 |
0.229 |
| t |
Min |
0.156 |
0.156 |
0.234 |
0.234 |
0.25 |
0.25 |
Packing& Shipping
1) Sample order, 20/25kg per carton with our logo or neutral package;
2) For Large orders, we can custom packaging;
3) Normal Packing: 1000/500/250pcs per small box. then into cartons and pallet;
4) According to customers' requirements.
FAQ
1.How do you let me trust you?
We are a Golden supplier in Alibaba who do business for more than 5 years. You can make an order by Alibaba to us directly.
2.How about your price?
High-quality products with a reasonable price suitable for your market.
3.How do you control your quality?
We request a QC inspection for each batch of goods. And we can provide you inspection report and mill certificate if you want..
4.Could you provide free samples?
For new customers, We can provide free samples for standard fasteners. But the clients will pay the express charges. For regular customers, We will send you free samples and pay express charges by ourselves.
5.How about your delivery time?
Generally speaking, All the goods have stock with little quantity, we can delivery them with one week. If the quantity is 1-2container, we can give you with 30-45days.
6.What is your packing?
Our packing is 20-25kg for one carton,36 or 48pcs cartons for one pallet. One pallet is about 900-960kg, We also can make the customer's logo on the cartons. Or we customized cartons according to customers' requirement, If you need small box packing, we can do according to your requirement.
7.What is your payment term?
We can accept T/T,LC for general order. For new customer, we request 20%-50% T/T in advance, and balance payment should against B/L copy. For regular customer, we can provide delay payment after B/L date about 30-90 days.
