Spring Lock Washer

Grade One Fasteners is a reliable Spring Lock Washer Manufacturer in India, supplying industrial spring lock washers for machinery, construction, automotive, structural, power, oil and gas and engineering applications. A spring lock washer, also known as a split lock washer or helical spring washer, is designed to be installed beneath a bolt head or nut in a threaded fastening assembly. Its split and helical construction creates spring action when compressed during tightening. Spring lock washers are commonly used in fastening assemblies where vibration, operational movement and dynamic loading may affect the bolted joint. Product selection should always consider the complete joint design, material, preload and application conditions. Spring lock washer configurations are commercially available in multiple standards, materials, sizes and finishes. Spring Lock Washer Manufacturer and Supplier in India Grade One Fasteners supplies spring lock washers for industrial customers requiring dependable fastening components for standard and project-specific applications. A properly selected washer is part of the complete fastening system. The washer must be compatible with the bolt size, material, operating environment and required mechanical performance. Spring lock washers can be supplied according to requirements involving: Spring lock washers are commercially available in spring steel, carbon steel, stainless steel and other materials depending on the application. What is a Spring Lock Washer? A spring lock washer is a split washer with a helical or spring-shaped profile. It is placed between the nut or bolt head and the connected component. When the fastener is tightened, the washer is compressed as part of the bolted assembly. Spring lock washers are commonly used where a fastening system requires resistance to movement and loosening under suitable service conditions. The product may also be referred to as: Different spring washer designs and cross-sections are available depending on the applicable standard and engineering requirement. How Does a Spring Lock Washer Work? A spring lock washer works as part of the complete bolted connection. During installation: The actual resistance of a bolted joint to loosening depends on multiple factors, including bolt preload, vibration, joint material, surface condition and fastening design. For severe vibration or safety-critical applications, the complete locking system should be selected according to engineering requirements rather than assuming a standard spring washer alone will provide sufficient protection. Spring Lock Washer Specifications Specification Available Options Product Spring Lock Washer Alternative Name Split Lock Washer Alternative Name Helical Spring Washer Type Helical / Split Type Material Spring Steel Material Carbon Steel Material Mild Steel Material Stainless Steel Material Alloy Steel Stainless Steel Grades SS 304 / SS 316 Finish Plain / Self Finish Finish Black Oxide Finish Phosphated Finish Zinc Plated Finish Mechanical Galvanized Finish Hot Dip Galvanized Size Range Standard and Custom Sizes Application Industrial and Mechanical Fastening Application Construction and Machinery Customisation Available as per Requirement Commercial spring lock washer ranges include metric sizes from small engineering applications to large industrial diameters, depending on manufacturer capability and specification. Spring Lock Washer Size Range Nominal Bolt Size Availability M3 Available M4 Available M5 Available M6 Available M8 Available M10 Available M12 Available M14 Available M16 Available M18 Available M20 Available M22 Available M24 Available M27 Available M30 Available M36 Available M42 Available M48 Available Larger Sizes As per Requirement Exact inner diameter, outer diameter, thickness and height should be confirmed according to the required standard or customer drawing. Commercial DIN 127 dimensional tables are available for multiple metric bolt sizes. Spring Lock Washer Materials Spring Steel Spring Lock Washers The Spring steel is commonly used where elastic properties and mechanical performance are required. Hardened and tempered spring steel is widely used for industrial spring washer applications. Carbon Steel Spring Lock Washers Carbon steel spring lock washers are suitable for general industrial and engineering applications depending on the required material properties and surface protection. Stainless Steel Spring Lock Washers Stainless steel spring washers are used where corrosion resistance is important. Common stainless steel options include: These materials may be selected for marine, chemical, outdoor and corrosive industrial environments depending on the complete application requirements. Alloy Steel Spring Lock Washers Alloy steel may be selected for specialised industrial applications requiring particular mechanical or environmental properties. Surface Finishes for Spring Lock Washers Plain Finish Suitable where additional surface coating is not required. Black Oxide Finish Commonly used for industrial and mechanical applications. Phosphate Finish Can be used depending on the product specification and application requirements. Zinc Plated Finish Provides additional corrosion protection for suitable operating environments. Hot Dip Galvanized Finish Commonly selected for outdoor, structural and corrosion-prone applications. Mechanical Galvanized Finish Can be specified where the project requires a particular corrosion-protection system. Commercial suppliers list finishes including black oxide, phosphated, zinc plated, mechanically galvanized and hot-dip galvanized options. Standards for Spring Lock Washers Spring lock washer requirements may depend on the product design and project specification. Common references include: One important point for procurement is that DIN 127 is listed by DIN Media as withdrawn. It may still appear in legacy specifications, supplier catalogues and product descriptions, but current projects should confirm the applicable standard and replacement requirement rather than automatically specifying DIN 127 for a new design. Indian suppliers also reference standards such as IS 3063 for metric spring washers, while ASME standards are used for relevant inch and metric locking washer applications. Applications of Spring Lock Washers Machinery and Equipment Spring lock washers are used in machinery assemblies containing bolts and nuts subjected to operational movement and vibration. Construction Industry Construction equipment and structural assemblies may use spring washers in suitable bolted connections. Automotive Industry Automotive components and equipment assemblies can use spring locking washers where specified by the fastening design. Power and Energy Industry Industrial power equipment, electrical structures and machinery contain numerous bolted joints requiring properly selected fastening components. Oil and Gas Industry Spring lock washers can be used in suitable industrial equipment and mechanical assemblies, subject to the applicable engineering and project requirements. Steel and Metal Industry Heavy equipment, structural machinery and production systems may use spring washers in selected bolted joints. Marine Applications