Details

---

The washer has a helical (split) design, allowing it to exert continuous spring tension against the nut and bolt. This prevents loosening and maintains a firm, long-lasting connection, even under heavy mechanical stress. It is commonly used in machinery, construction, automotive, electrical installations, industrial assemblies, and outdoor structural applications.

Key Features:

• Material: Galvanized Iron (GI)

• Type: Split/Helical Spring Washer

• Purpose: Locks nuts and bolts, prevents loosening due to vibration

• Finish: Hot-dip galvanized or electro-galvanized for corrosion resistance

• Strength: Heavy-duty design for high-load applications

• Durability: Long service life even in harsh conditions
  
  
  Specifications (Common Sizes)

Values are typical for heavy-duty GI spring washers (DIN 127 / IS standards).

Metric Sizes

Bolt Size (M)	Inner Diameter (ID)	Outer Diameter (OD)	Thickness (T)	Washer Height (Split Rise)
M6	6.1 mm	10.8 mm	2.0 mm	3.0–3.5 mm
M8	8.1 mm	13.8 mm	2.5 mm	3.5–4.0 mm
M10	10.2 mm	17.5 mm	3.0 mm	4.5–5.0 mm
M12	12.2 mm	21.0 mm	3.5 mm	5.0–6.0 mm
M16	16.2 mm	28.2 mm	4.0 mm	7.0–8.0 mm
M20	20.2 mm	34.0 mm	5.0 mm	8.0–9.0 mm
M24	24.5 mm	40.0 mm	6.0 mm	9.0–10.0 mm