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.
item
value
Color
Yellow zinc
System of Measurement
Metric
Place of Origin
China
Hebei
Material
Steel
Product name
Hit the expansion bolt
Surface treatment
Stainless steel / galvanized
Size
M6-M24
MOQ
1000PCS
Length
customer demand
Delivery time
15-30days
Package
Carton+Small Box+Pallet
Port
Tianjin Port
PAYMENT
100% TT
Anchor Type
Expansion Ahchor Bolt
Standard
GB, DIN, ISO, JIS
Size
M3-M50 or non-standard as request&design
Material
Carbon steel, stainless steel, alloys steel etc.
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.
Cross recessed pan head self drilling screw
Size:M4.2-M4.8
Length:12mm-50mm
Material: carbon steel
Finish: white zinc plated, blue zinc plated,yellow zinc plated, etc.
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
value
Finish
ZINC, Plain
Material
Stainless steel, Steel
Place of Origin
China
Guangdong
Brand Name
yufu
Model Number
20231214
Standard
DIN
Product name
Bolt
Standard
Din933/Iso/Customized
Grade
4.8/ 8.8/ 10.9/ 12.9 Ect
Color
Customized Colors
MOQ
1000pcs
Application
Industry
Size
Customized Size
Certificate
ISO9001:2015
Delivery time
7-15 Working Days
Port
Shenzhen Port
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