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Medium Split Lock Washer Gr 18.8 Stainless Steel

From: $0.05

BoltCraft’s Medium Split Lock Washer Grade 18-8 Stainless Steel is engineered for superior locking performance in corrosive environments. This washer features a split design that ensures tension and tightness, making it an ideal choice for securing stainless nuts and screws with unparalleled reliability.


$100 minimum order


  • The Medium Split Lock Washer from BoltCraft is crafted with precision to deliver effective locking action that prevents loosening due to vibrations and torque. Made from high-quality 18-8 stainless steel, this washer is designed to withstand harsh conditions without compromising its integrity.

Applications & Advantages

  • Specifically suitable for applications involving stainless steel nuts and screws, ensuring compatibility and corrosion resistance.
  • The helical shape provides continuous pressure and significantly increases the friction between the bolt and nut, preventing loosening caused by vibration.
  • Ideal for use in environments where exposure to water, chemicals, or other corrosive elements is common, maintaining its locking capabilities over time.

Material & Specifications

  • Constructed from austenitic 18-8 stainless steel, known for its excellent corrosion resistance and durability.
  • The washer undergoes a rigorous twist test to ensure its resilience and ability to maintain structural integrity under stress.

Reliability & Performance

  • The split design creates a spring-like effect, applying consistent load and ensuring effective bolt tension for a secure fit.
  • Compatible with Grade-5 and Grade-8 bolts and nuts, providing versatile application across various industries, including marine, chemical, and outdoor construction.

Testing & Compliance

  • Each washer is subjected to a twist test, where it must withstand a 90° bend without fracturing, indicating its quality and toughness.
  • The fine grain structure at the breaking point of the test signifies the high-quality material and manufacturing process used in its production.
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