For samples, the lead time is about 7 days. For mass production, the lead time is 20-30 days after receiving the deposit payment. The lead times become effective when (1) we have
received your deposit, and (2) we have your final approval for your products. If our lead times do not work with your deadline, please go over your requirements with your sale. In all
cases we will try to accommodate your needs. In most cases we are able to do so.
Standard
GB, DIN, ISO, JIS
Size
M3-M50 or non-standard as request&design
Material
Carbon steel, stainless steel, alloys steel etc.
Hex head bolt and nut Grade
4.8 / 6.8 / 8.8 / 10.9 / 12.9 ,
A2-70 / A4-80
Packing
Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
A double-stacked self-locking washer is a special mechanical connector designed to prevent bolts from loosening, especially in high-vibration or high-load environments.It consists of two spring washers nested inside each other in an S-shaped configuration. The outer spring washer has ends that bend inwards, while the inner spring washer has ends that bend outwards, creating a two-way self-locking feature.The working principle of this washer is based on elastic deformation. When placed between connecting parts, the inner curved part of the outer spring ring interlocks with the outer curved part of the inner spring ring, creating a locking force that prevents the connecting parts from loosening under vibration or load.The advantages of the double-stacked self-locking washer include high reliability, easy installation, and a wide range of applications.It is suitable for various mechanical connections, such as threaded connections and pin connections, and is widely used in industrial production and machinery manufacturing, especially in the automotive manufacturing process, where it is often used to connect engine and chassis systems to improve the safety and reliability of the car.
Standard
GB, DIN, ISO, JIS
Size
M3-M50 or non-standard as request&design
Material
Carbon steel, stainless steel, alloys steel etc.
Hex head bolt and nut Grade
4.8 / 6.8 / 8.8 / 10.9 / 12.9 ,
A2-70 / A4-80
Packing
Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
Standard
GB, DIN, ISO, JIS
Size
M3-M50 or non-standard as request&design
Material
Carbon steel, stainless steel, alloys steel etc.
Hex head bolt and nut Grade
4.8 / 6.8 / 8.8 / 10.9 / 12.9 ,
A2-70 / A4-80
Packing
Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
item
connecting nut
Application
Heavy Industry, General Industry, Automotive Industry
Material
carbon steel, stainless steel
Size
M6 M8 M10 M12 M16
Packing
Cartons and pallets or according to customer’s requirements
Advantages:
Factory direct selling and competitive price
Delivery method:
Air, sea or express, such as EMS, UPS, TNT etc
Product Name
Expansion Anchor
Shipping Address
China
Finish
wzp, blue zp, etc.
MOQ
10000pcs
Material
Carbon steel or customized
Standard
DIN GB,etc
Size
M4 M5 M6 M8 or customized
Place of Origin Handan China
Product name Caster Wheel
Material:Nylon/PVC/PU/carbon steel/stainless steel
Load Capacity 280-420kg
Bearing Ball Bearing
Size 4/5/6/8Inch
Usage Wide Usage
Packaging and delivery
Packaging Details caster wheels,all goods simple pack in the carton with poly bag or as customer’s request
Standard
GB, DIN, BSW,UNC
Size
M3-M50 or non-standard as request&design
Material
Carbon steel, stainless steel, alloys steel etc.
Grade
4.8 / 8.8 / 10.9 / 12.9 ,
A2-70 / A4-80
Packing
Box, carton or plastic bags, then put on pallets, or according to the demand of the customers
Standard
GB, DIN, ISO, JIS
Size
M3-M50 or non-standard as request&design
Material
Carbon steel, stainless steel, alloys steel etc.
Hex head bolt and nut Grade
4.8 / 6.8 / 8.8 / 10.9 / 12.9 ,
A2-70 / A4-80
Packing
Box, carton or plastic bags, then put on pallets, or according to the demand of the customers