#512162

Diameter Thread Threads Length Grade Finish Weight
1.5 (1 1/2) Partial 0 Plain Finish .381
Diameter 1.5 (1 1/2)
Thread 0
Length
Grade
Finish Plain Finish
Weight .381



Heavy Helical Spring Washers, or Heavy Helical Spring Lock Washers, are designed to prevent loosening in vibrating applications. The circular coil grabs onto the head and material being fastened, creating a locking action. Heavy Helical Spring Washers are through hardened with a large width to improve strength and performance. Heavy lock washers are for use in Grade 8 or better applications.

Heavy Helical Spring Washer – Grade 8 or better

  • Prevents loosening in high-vibration applications
  • Used in high-demand assemblies
  • Sizes range from 1/4 to 2 1/2
  • Meets ANSI B18.21.1 standards
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