| Material | Carbon Steel, Alloy Steel, Stainless Steel, Aluminum, Brass, etc. |
| Color | Black / Blue / Yellow Zinc Plated / Plain etc. |
| Standard | DIN, ASTM,JIS,BS,AS,ISO,GB,Nonstandard bolt(according to your order),etc. |
| Surface Finished | Black,Zinc plated,Copper plating,Phosphating,Mechanical galvanized,hot dipped galvanized,daromet etc |
| Mark | According to customer’s requirement |
| Delivery time | Within 30 days after receive your deposit. |
| Package | By carbon or gunny bag then on wooden pallet or according to client’s requirement |
| Professional: | We are specialized in fastener products 20 years of experience in this field |
| Size: | According to customer request |
| CustomerService: | 24-hours standby, Critical listening your every suggestion or demand and feedback ASAP. |
Product Introduction
Spring washers, also known as spring washers, play an important role in the mechanical and screw industries. It is usually used to increase the contact area between products, enhance fastening effect, and reduce friction damage between components. The main functions of the cushion include preventing loosening, shock absorption, preventing air leakage, serving as a buffer, and providing safety protection in specific environments. The material of the spring pad is diverse, including stainless steel and carbon steel (usually iron), and there are also various sizes to choose from, such as M3, M4, M5, M6, M8, M10, M12, M14, M16, etc. The national standard GB/T 94.1-2008 specifies the technical conditions for spring pads to ensure their quality and stability of performance.
The application scenarios of spring washers are wide, especially in situations where the pre tightening force of bolts is not high and the dynamic load is small. When the connected part is relatively soft, the sharp edge of the spring washer can be embedded to prevent loosening. In addition, when the clamping length of the bolt is short and the stress relaxation of the bolt is significant, if the elastic force of the washer is not significantly different from the pre tightening force of the bolt, the spring washer can compensate for this stress relaxation. However, in high-strength bolt connections, due to the smaller end face of the spring washer compared to the flat washer, under the same pre tightening force and external load conditions, it may cause surface deformation of the parts, thereby reducing the pre tightening force of the bolt and gradually causing loosening. Therefore, when choosing whether to use spring washers, it is necessary to consider the specific application scenario and bolt type comprehensively.
In addition to spring washers, there are other types of washers such as flat washers and anti loosening washers, each with different application scenarios and advantages. Flat washers are mainly used to prevent loosening of bolts and nuts, while anti loosening washers have stronger anti loosening capabilities. Understanding the characteristics and usage scenarios of these gaskets can help us choose the appropriate gasket type based on specific needs to ensure the reliability and safety of the connection
Main materials
Usually, 65MN spring steel or 70 # carbon steel, 3Cr13, stainless steel materials SUS304 or SUS316, as well as phosphor bronze materials can be used.
Main purpose
Used under the nut to prevent it from loosening.
It is stated in national standards.
The methods to prevent nuts (or bolts) from automatically loosening in mechanical design and production include:
1. Add spring washers; (Simple and easy to do)
2. Use hexagonal slotted nuts and split pins; (Year on year increase in processing steps)
3. Add a stop washer; (Year on year increase in processing steps)
4. Insert the steel wire into the hexagonal head hole of the hexagonal bolt. (Year on year increase in processing steps)
Spring washers are used for anti loosening, such as adding spring washers to the bolts connecting the motor and the machine base, because if the motor vibrates without spring washers, the nuts will loosen. Generally, fasteners on equipment with vibration are equipped with spring washers, while flanges generally do not require washers. The presence or absence of spring washers on flanges is related to the medium flowing through the pipeline. If it is prone to pulse generation, it is best to add spring washers. There are also high-speed fluid pipelines with frequent changes in diameter, so do not generalize. On some valves, spring washers are required to be added to the flange of the packing box cover, and the selection of spring washers is included in the Quick Easy Optimization automation selection.
Main differences
Spring washers can play a role in preventing loosening and increasing pre tightening force, while flat washers do not have this function. They can be used to increase the fastening contact area, prevent friction between bolts and workpieces, protect the surface of connecting parts from scratching the workpiece surface when bolts and nuts are tightened.
But some important connections, such as those that rely mainly on compression to generate friction and transmit power, cannot use spring pads. Using them will reduce the rigidity of the connection and may even lead to accidents. When the strength of the connected component is low, flat washers or flange bolts are used to increase the contact area. When there is vibration, pulse, or significant temperature fluctuations in the medium, spring washers must be used.
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
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
Standard GB, DIN, BSW, ASTM, ASME Size M3-M50 or non-standard as request&design ASTM A193 B7 1/4″×13-1/4″×102, 5/16″×13-5/16″×152, 7/16″×25-7/16″×100 3/8″×13-3/8″×152, 1/2″×19-1/2″×152, 5/8″×32-5/8″×300, 3/4″×38-3/4×300 7/8″×50-7/8″×300 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
Product name Cylindrical locating pin round head cylindrical pin dowel stainless steel cylindrical positioning pin Size M1-M48,According to the drawing provided by the customer. Grade 4.8, 6.8, 8.8, 10.9, 12.9, A2-70, A4-80 Standard ISO, GB, BS, DIN, ANSI,JIS, Non-standard Material 1. Stainless steel: 201,303,304,316,410 2. Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045 3. Copper: H62,H65,H68 4. Aluminum: 5056, 6061, 6062, 7075 5. According to customer demand Surface treatment Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. Package Plastic bag / small box +outer carton +pallets After-sales Service We will follow up
Product Name U-bolt Package BAG/BOX Grade 4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9,etc Available Material 304 stainless steel,plastic,brass,carbon steel,titanium,aluminum,etc Surface treatment Zinc plated,Black oxide,Phosphate,Dacroment,etc Standard ISO,BS,ANSI, GB,DIN,JIS,Nonstandard Advantage OEM / ODM / customized service provided Quality control ISO standard,100% Whole range inspection through the production Certificate ISO9001,ISO14001,IATF16949,ROHS,etc
Product name Butterfly nut texture of material SS304 SS316 stainless steel，mild steel, Carbon steel,1018,1022,10B21,SCM435,12L14, 1215,4140, 4340, 5120,5140,5145, etc. standard ASME ISO DIN BS Grade A2 A4 or grade 2 5 8 10 Surface plain, zinc plated, hot dip galvanized ,black oxide packing Plastic bag / carton
The window regulator motor is the power source of the window glass lifting system, responsible for driving the glass up and down. It is usually installed inside the car body or in the car door, connected to the window glass through steel wire ropes or guide rails, to achieve the control of the window lifting. The working principle of a motor is based on electromagnetic induction and changes in the direction of current. By changing the direction of current, the motor’s forward and reverse rotation can be controlled, thereby achieving the up or down movement of the car window. The start and stop of the motor are controlled by the switch inside the car, making it convenient for the driver to operate. In addition, in order to protect the motor, wire rope, and guide rail, a lubrication system is also installed in the system to provide lubricating oil for these components, reduce friction, and extend service life.
Material Alloy steel,Carbon steel, Stainless steel 304 or 316 Technology Drop forged Finish Hot Dipped Galvanized, Electro Galvanized,Spray Painting,High polished, Mirror Polished Certificate CE certificate Testing 100% proof load tested and 100% calibrated Usage Lifting and connecting Main Standard Lifting Eye Hook S320,Swivel Hook S322,Slip Hook 324 and 331,Grab Hook 323 and 330,G80 Hooks,many other shaped lifting and chain hooks as request.
Type:Standard Solid Wheels,Universal wheels Material:Nylon/PVC/PU/carbon steel/stainless steel Place of Origin:Handan , China 2/2.5/3/4/5 inch universal/directional/with brake 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 Customized support OEM, ODM, OBM
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 8.8 High Tensile Black Oxide Flat Washer Finish Black, ZINC, Plain Style flat washer Material Stainless Steel, Steel Application Heavy Industry, Retail Industry, General Industry Place of Origin HEB Model Number 6-30 Standard DIN Material Stainlesss Steel， Carbon Steel Surface treatment White Zinc .Yellow Zinc. HDG MOQ 5000pcs Grade 4.8/ 8.8/ 10.9/ 12.9 Ect
Material 1.StainlessSteel:SS201,SS303,SS304,SS316,SS410,SS420 2.Steel:C45(K1045), C46(K1046),C20 3.Carbon Steel: 1010,1035,1045 4.Aluminum or Aluminum Alloy:Al6061,Al6063,Al7075,etc 5.Brass:H59,H62,Copper,Bronze Grade SAE J429 Gr.2, 5,8; ASTM A307Gr.A,A193 B7,B8,B8M,A194 2H, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9 and etc. Finish Plain, Zinc Plated(Clear/Blue/Yellow/Black), Black oxide, Nickel, Chrome, H.D.G and etc. Thread UNC,UNF,UEF,UN,UNS Standard ISO, DIN, ANSI, JIS, BS and Non-standard Sample Service Samples are all in free. Certificate ISO9001,CE, SGS, BV Advantage 1. Competitive price; 2. OEM service available Packing Bulk in cartons (25kg Max.)+wood Pallet or according to customer special demand Lead Time 7-15 work days after order confirmed Application Structural Steel; Metal Buliding; Oil&Gas; Tower&Pole; Wind Energy; Mechanical Machine; Automobile: Home Decorating and etc. Notes Special specifications and marks can be made according to customers requirements;
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
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
Standard GB, DIN, BSW, ASTM, ASME Size M3-M50 or non-standard as request&design ASTM A193 B7 1/4″×13-1/4″×102, 5/16″×13-5/16″×152, 7/16″×25-7/16″×100 3/8″×13-3/8″×152, 1/2″×19-1/2″×152, 5/8″×32-5/8″×300, 3/4″×38-3/4×300 7/8″×50-7/8″×300 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
Product name Cylindrical locating pin round head cylindrical pin dowel stainless steel cylindrical positioning pin Size M1-M48,According to the drawing provided by the customer. Grade 4.8, 6.8, 8.8, 10.9, 12.9, A2-70, A4-80 Standard ISO, GB, BS, DIN, ANSI,JIS, Non-standard Material 1. Stainless steel: 201,303,304,316,410 2. Carbon steel: C1006,C1010,C1018,C1022,C1035K,C1045 3. Copper: H62,H65,H68 4. Aluminum: 5056, 6061, 6062, 7075 5. According to customer demand Surface treatment Zn- Plated,Ni-plated,Passivated,Tin-plated,Sandblast and Anodize,Polish,Electro Painting,Black Anodize,Plain,Chrome plated,Hot Deep Galvanize(H. D. G. ) etc. Package Plastic bag / small box +outer carton +pallets After-sales Service We will follow up
Product Name U-bolt Package BAG/BOX Grade 4.6,4.8,5.6,6.8,8.8,9.8,10.9,12.9,etc Available Material 304 stainless steel,plastic,brass,carbon steel,titanium,aluminum,etc Surface treatment Zinc plated,Black oxide,Phosphate,Dacroment,etc Standard ISO,BS,ANSI, GB,DIN,JIS,Nonstandard Advantage OEM / ODM / customized service provided Quality control ISO standard,100% Whole range inspection through the production Certificate ISO9001,ISO14001,IATF16949,ROHS,etc
