Saddle spring washers (Saddle spring washers) to DIN 128A are lock washers used on bolts or screws. These washers are usually made of spring steel and can be given a surface treatment such as zinc plating or blackening to improve corrosion resistance and aesthetics. Materials can be selected from stainless steel (e.g. 304/316), carbon steel or alloy steel to suit different application environments and corrosion resistance needs.
Stainless Steel (304/316): Offers superior corrosion resistance and is suitable for moist or corrosive environments. The 316 grade has additional molybdenum, providing even better corrosion resistance, especially in marine applications.
Carbon Steel: Provides good strength and is the most common material for bolts. It may require additional surface treatments like galvanizing for increased corrosion resistance.
Alloy Steel: Offers enhanced strength and durability. It is often used in high-stress applications where high tensile strength is required.
Advantage:
High Strength: These washers are designed to handle significant pre-tensioning loads, making them suitable for use with high-strength bolts of grades 8.8 to 10.9 without any restrictions .
Corrosion Resistance: The oxidized blackening process provides a protective layer that resists corrosion, which is particularly important in environments exposed to moisture, chemicals, or extreme temperatures .
Load Distribution: The cushion design of these washers helps distribute the load from the fastener, reducing stress concentration and protecting the connected materials from damage.
Durable Finish: The blackened finish not only enhances the aesthetic appeal but also contributes to the wear resistance of the washer, prolonging the life of the fastener assembly .
Scope of Application
Automotive Industry: Used in the assembly of vehicles to secure components that require a reliable connection for safety and performance.
Aerospace: Employed in aircraft construction for high-strength connections that must withstand the rigors of flight.
Construction: Utilized in heavy machinery and structural support systems where strength and durability are essential.
Machinery: Used in various mechanical applications to ensure secure and stable fastening of components.
Quality Certification
Hebei Bentley is ISO9001:2015 certified and equipped with relevant certificates for quality assurance. Due to its specific dimensions and performance levels, it is suitable for a wide range of industrial and commercial scenarios including, but not limited to: machine building, construction work, transport, energy industry, timber frame connections.
Quality inspection
Bentley has invested a huge amount of money to builda product testing laboratory, equipped with importedhigh-end instruments:such as thread comprehensivescanners, high temperature tensile testing machines,high frequency fatigue testing machines, etc., to ensurethat all products are strictly tested before leaving thewarehouse to ensure the reliability of customers duringuse.
