Metal Flat Washers DIN 9021 With Plain colour&Zinc
Flat washers are usually thin pieces of various shapes, used to
reduce friction, to prevent leakage, isolation, to prevent loose or
dispersed pressure. Many materials and structures have such
components, for the implementation of various similar effects. The
material and process of the fastened fastener are limited, and the
fasteners of the bolts are not supported. Therefore, the surface of
the connected member is protected by the compressive stress of the
pressure receiving surface. In order to prevent loosening of the
connection loops, the use of anti-loose spring washers and
multi-toothed locking washers, round nut stop washers and saddles,
corrugations and conical elastic washers.
Flat washers are mainly used to reduce the pressure, when some
parts tighten the axial force is very large, easy to make the
gasket into a dish, then you can use the material and improve the
hardness to solve.
Spring washer locking effect in general, important parts as little
or no use, and the use of self-locking structure. For high-speed
tightening (pneumatic or electric) spring washers, it is best to
use surface treatment of the gasket, to improve its wear
performance, or easy to friction and heat burned or mouth, or even
damage the surface of the connector. For sheet connections, spring
washers should not be used. According to statistics, the spring
washer in the car to use less and less.
The toothed in the toothed elastic washer is large and uniform due
to the locking force, and is used more in the automotive industry,
while the spacer is less.
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|DIN9021 Flat Washers|
|SIZE||inside diameter||Outside diameter||thickness||Thousands of heavy|
|2.5||2.7 ～2.84||7.64 ～0.8||0.7 ～0.9||0.28|
|3||3.2 ～3.38||8.64 ～9||0.7 ～0.9||0.349|
|3.5||3.7 ～3.86||10.57 ～11||0.7 ～0.9||0.529|
|4||4.3 ～4.48||11.57 ～12||0.9 ～1.1||0.774|
|5||5.3 ～5.48||14.67 ～15||1 ～1.4||1.46|
|6||6.4 ～6.62||17.67 ～18||1.4 ～1.8||2.79|
|7||7.4 ～7.62||21.48 ～22||1.8 ～2.2||5.29|
|8||8.4 ～8.62||23.48 ～24||1.8 ～2.2||6.23|
|10||10.5 ～10.77||29.48 ～30||2.3 ～2.7||12.2|
|12||13 ～13.27||36.38 ～37||2.7 ～3.3||22.2|
|14||15 ～15.27||43.38 ～44||2.7 ～3.3||31.6|
|16||17 ～17.27||49.38 ～50||2.7 ～3.3||40.9|
|18||20 ～20.52||54.1 ～56||3.4 ～4.6||67.4|
|20||22 ～22.52||58.1 ～60||3.4 ～4.6||76.8|
|24||26 ～26.84||70.1 ～72||4 ～6||139|
Packing & Delivery
Packing Details : Bags or box on pallets or according to customer's
Delivery Details : 7-15 days after order
1. Good after-sales service. Any small problem happening will be
solved at the most prompt time;
2. Many years of export experience;
3. Specifications list is available upon your request;
4. Welcome to send enquiry, we will reply soon;
5. Prompt shipment with professional documents;
6. Custom packing, with photo before shipment;
7. High quality and competitive price.
HANDAN QIANBANG FASTENERS MANUFACTURING CO.,LTD is located in
China’s largest fasteners production base---Yongnian fasteners
Our factory was founded in 1991.We have several sets of advanced
equipments, adopt advanced modern management and use high quality
steel to produce high quality products. The products sold
throughout the domestic and exported to Southeast Asia and Europe
and other countries and regions. Our products win good reputation
with domestic and foreign customers.
Our factory mainly produces: all kinds of flat washers, spring
washers, expansion screws, hex nuts, flange nuts, hex bolts, flange
bolts, sleeve anchor, fundation bolts, and thread robs with DIN,
BSW, ANIS,.And we also provide the OEM, Meanwhile, we are
manufacturing factory, so we can give you the best quality and the
Q: Are you trading company or manufacturer ?
A: We are a factory.
Q: How long is your delivery time?
A: Generally it is 5-10 days if the goods are in stock. or it is
15-20 days if the goods are not in stock, it is according to
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge but do not pay
the cost of freight.
Q: What is your terms of payment ?
A: Payment<=1000USD, 100% in advance. Payment>=1000USD, 30%
T/T in advance ,balance before shippment.