Serrated Washer

Shiv Sagar Serrated Washers available in mm and inches, which have internal teeth, are available in Stainless Steel, Plated Steel, or Phosphor Bronze as standard. These "shake-proof" serrated washers fitted internally to the equipment, before the application of a locknut act as an anti-vibration device to prevent the cable gland and locknut arrangement from loosening in service. These are of particular importance in situations where vibrating heavy machinery, such as mud shakers, pumps and drilling equipment is operating aboard mobile or fixed onshore and offshore drilling units.

Use for electrical installation and commissioning projects

Material : Stainless Steel 316L, 304, Brass & Alluminium
NPT Serrated Washer S.S 316 & Brass
Metric Serrated Washer S.S 316 & Brass
Alluminium & Brass Locknut
Size (METRIC / NPT / Locknut)
SIZE (NPT) SIZE (MTERIC) SIZE (LOCKNUT)
050-1/2 " NPT SW4 16 1/2 " -14
075-3/4 " NPT SW4 20 3/4"-14
100-1 " NPT SW4 25 1"-11.5
125-1-1/4 " NPT SW4 25 1 1/4"-11.5
150 - 1-1/2 " NPT SW4 32 1 1/2"-11.5
200- 2" NPT SW4 40 2"-11.5
250-2-1/2" NPT SW4 50 2 1/2"-8
300-3-1/2 " NPT SW4 63 3"-8
40C -4 "NPT SW4 75 3 1/2"-8
500-5" NPT SW4 75 4" -8
  SW4 90 5"-8
  SW4 100 6"-8
  SW4 115  
  SW4 130  
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