| 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 |
Flat pad is mainly made by stamping iron plate, and its shape is usually a flat washer with a hole in the middle. Flat washers are typically thin pieces of various shapes used to reduce friction, prevent leakage, isolate, prevent loosening, or distribute pressure.
The working principle of a flat pad is mainly reflected in the following aspects:
Increase contact area: The flat pad disperses pressure by increasing the contact area between the screw and the machine, preventing softer components from being crushed. This design is particularly suitable for situations where one of the connecting components is soft and the other is hard and brittle. By increasing the contact area and dispersing pressure, it protects the softer components from damage
Prevent damage: When using flat pads, the order of "one spring pad, one flat pad" must be followed, that is, the flat pad is adjacent to the machine surface, and the spring pad is between the flat pad and the nut. This can eliminate the damage caused by the spring pad to the machine surface when removing screws, and protect the machine surface from damage
Auxiliary disassembly: In some cases, such as when bolts often need to be disassembled, using flat pads can simplify the disassembly process and make it more convenient. This is because the design of the flat pad helps reduce friction and resistance during disassembly, making the disassembly process smoother
Reduce compressive stress: When the bolt strength is high and the compressive stress of the connected part is relatively low, using a flat washer can reduce the compressive stress on the pressure bearing surface of the connected part. This design helps to balance pressure distribution and avoid component damage caused by excessive local pressure
Purpose:
Flat pad is an inelastic gasket that can withstand high pressure. Its main function is to increase the contact area between bolts and connectors, disperse pressure, and protect the machine from damage. In addition, flat pads can also be used to compensate for uneven or non perpendicular connection surfaces. Flat pads are commonly used in situations where the load is small and does not withstand vibration loads, such as machine tools, light industrial machinery, ordinary household appliances, toys, etc.
Spring Washer Material: carbon steel, stainless steel,brass, etc. Size: M2-M100, 1/4-2-1/2 Standard: DIN127, ASTM, ISO Finish: white zinc plated, yellow zinc plated, blue zinc plated, Hot-dip galvanized, black oxide, plain, etc.
item value Shank Type smooth Head Style cylindrical head Place of Origin China Hebei Brand Name Dewell Model Number Customized Type welding screw Material carbon Steel Head Diameter 6mm-22mm
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
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
Standard GB, DIN, ISO, BSW,UNC 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 / 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 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
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
Material Steel/Alloy/Bronze/Iron/ Carbon steel/etc Grade 4.8/ 6.8 /8.8 /10.9 /12.9 specification M0.8-M12 or 0#-1/2″ and we also produce according to customer’s requirement Standard ISO,DIN,JIS,ANSI/ASME,BS/Custom Color We can provide customized services according to your needs Surface Treatment We can provide customized services according to your needs Product Wheel / Lug Nut Mark According to customer’s requirement Package Cartons&pallets or according to customer’s requirement.
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;
Electronic connector stamping parts, Electronic housing stamping parts
Product Name Nylon lock Nut Grade: 4.8,8.8,10.9,12.9 Size: M4–M100 Surface treament: Black,zinc plated,zinc(yellow)plated,H.D.G etc,Dacroment Material: Carbon steel,alloy steel,stainless steel,ec
-dewell fastener factory provides bolt and nut.washer.Metal Stamping products.Caster wheels.lifti...
Spring Washer Material: carbon steel, stainless steel,brass, etc. Size: M2-M100, 1/4-2-1/2 Standard: DIN127, ASTM, ISO Finish: white zinc plated, yellow zinc plated, blue zinc plated, Hot-dip galvanized, black oxide, plain, etc.
item value Shank Type smooth Head Style cylindrical head Place of Origin China Hebei Brand Name Dewell Model Number Customized Type welding screw Material carbon Steel Head Diameter 6mm-22mm
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
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
Standard GB, DIN, ISO, BSW,UNC 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 / 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
