DIN125A gi washer galvanized flat washer
US $0.05-$0.10
Metal Spring Steel Wave Spring Washers Black Oxide Locking Fasteners 20mm
- Category: Washers >>>
- Supplier: Dongguan City Zhaoming Hardware Co. Ltd.
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Product Overview
Description
Metal Spring Steel Wave Spring Washers Black Oxide Locking Fasteners 20mm
General Description
Black wave washers are made from metal steel with high tensile strength and black oxide finish for anti-corrosion , it is also known as wave spring washer or lock washer as they are same purpose on use , wave washers can increase friction between object and washers this make objects are secured more safe .
Technical Data
Material
Steel
Physical Properties
Hardness ( HV ) | 42 | Yield Strength ( Mpa ) | 210 | Elongation ( % ) | 35 |
Tensile Strength ( Mpa ) | 320 | Torque | 3 | Reduction Area ( % ) | 50 |
Specification
Outer diameter | 20 |
|
Inner diameter | 15 | |
Thickness | 1.5 |
Optional Standard Specification DIN 137 B
d1 | Inside diameter |
|
d2 | Outside diameter | |
S | Thickness | |
h | Height |
| M | d1 | d2 | s | h |
| 3 | 3.2 | 8 | 0.5 | 1.0 |
| 4 | 4.3 | 9 | 0.5 | 1.0 |
| 5 | 5.3 | 11 | 0.5 | 1.5 |
| 6 | 6.4 | 12 | 0.5 | 1.5 |
| 8 | 8.4 | 15 | 0.5 | 1.5 |
| 10 | 10.5 | 21 | 0.8 | 3.0 |
| 12 | 13 | 24 | 1.0 | 3.0 |
Finish
Type | Thickness | Salty Spray Hours | RoHS / REACH |
Oxidation | 5 | 12 | RoHS |
Product Features
1 . Excellent Flexibility .
Wave washers are made from super quality spring steel , this kind of material has good elastic deformation , which can keep wasehrs not desformed even there is much loading during service .
2 . High Strength .
Wave washers were formed and then must be quenched in 400 degree x 15 minites and anti-fatigue is up to 240 Mpa .
3 . Perfect stability .
Inside components and instructure of washerst are reformed after quenching , keeping this status long time , and that make part satisfied expect requirements .
4 . Good heat resistance .
Spring steel part can be worked smoothly under 500 degrees surroundings , so , which is the ideal choice for part that in bolier , car , steam valve etc .
5 . Low cost .
As spring steel is easy to make and full automated production ,
6 . Easy oparation .
Simple structure and strict tolerances.
7 . Nice appearance .
Wave washers were plated after formed and also can be coated different colors based on request of fittings .
8 . Enviroment friendly .
All chemical elements and surface treatment are meet for the relative standards .eg , GB , ROSH etc .
9 . Resistance of oxidation.
Oxidized surface treatment to improve resistance for corrosion .
Applications
Spring steel wave washers are mainly used for shaft bolts together with nuts to secure objects , especailly for buliding and mechanical equipments .
Tips for Use
1 . Choose right dimension for wave washer before installation
2 . Do not put washers in strong acid-base surroundings .
Packing Details
 |  |  |
| Bulk ( Bags + Carton )
Pcs / Bag : 2 Kgs / CTN : 16 L X W X H : 25 X 20 X 15 cm | Boxes ( Boxes + Carton )
Kgs / Bag : 0.3 Kgs / CTN : 9 L X W X H : 25 X 25 X 20 cm | Pallets
Kgs / pallet : 1800
L X W X H : 1 X 1 X 2 m |
Remark : Custom packing is acceptable . Above packings are reference only , items showed in the pictures maybe not described one
Our Services
We are one of hardware spare parts manufacturers in China , we provide various metal and non-metal parts with standards and customizations , eg. Fastener Screws ( including Stainless steel screws ) , Spacers Washers , Fastener Nuts bolts , Fastener Pins , Fastener Rivets , Metal Stamping Parts , Metal Machined Parts , Plastic Injection molding Parts . and Fastener Tools . We trade with buyers , wholesalers and retailers from different countries . We accept OEM and ODM service as well . Please contact us if you have any enquiry
FAQ's
Q What is your production capacity ?
A. We are able to finish up to 2000 tons raw material every year , generally , one full 20 feet container ( about 20 tons) can be done in 20- 25 days .
Q.How long I can get samples for approval before placing order ?
A. Just in one week for new samples that need to be done in new tools , and we can deliver samples within 24 hours for exsiting samples once received your request .
Q.What are your popular payement menthods ?
A. T/T is our prior choose for all , of course , we are also accept L/C , Westunion , paypall .
Q. What products you produce ?
A. We are proudce different hardware spare parts , stamping part , plastic injeciton molding parts and fasteners like screws , bolt , nuts , pins , rivets and spacers washers etc
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