A spring washer is a split, circular fastener component designed to provide tension and prevent loosening of nuts and bolts. It works by exerting a continuous spring force, helping maintain tightness under vibration and dynamic loads. Typically made from carbon steel or stainless steel, spring washers are widely used in construction, automotive, machinery, and industrial applications where secure fastening is essential.

Material

• Mild Steel (MS)
• Carbon Steel
• Stainless Steel (SS 304 / SS 316)
• Spring Steel (hardened)

 Dimensions

• Size Range: M2 to M48 (or higher as required)
• Inner Diameter (ID): As per bolt size
• Outer Diameter (OD): Approx. 2× bolt size
• Thickness: 0.8 mm to 10 mm

Example Sizes (DIN 127):

• M6 → ID: ~6.1 mm, OD: ~11.8 mm, Thickness: ~1.6 mm
• M8 → ID: ~8.1 mm, OD: ~14.8 mm, Thickness: ~2.0 mm

 Mechanical Properties

• Hardness: 42–47 HRC (hardened & tempered)
• Spring Deflection: 1–3 mm depending on size
• Load Retention: Maintains 30–60% preload under vibration
• Spring Rate: 5–15 N/mm

 Surface Finish

• Zinc Plated
• Hot Dip Galvanized (HDG)
• Black Oxide (standard)
• Nickel / Chrome / Phosphate coating

 Working Temperature

• Standard Steel: -40°C to +120°C
• Stainless Steel: up to 200°C

 Function (Construction – Marble & Tiles)

• Prevents loosening of bolts due to vibration
• Provides spring tension to maintain tightness
• Protects marble/tiles from damage caused by loosening
• Compensates for expansion, shrinkage, and load changes

 Applications

• Marble and tile fixing systems
• Structural and façade installations
• Machinery and equipment
• Automotive and industrial assemblies