S-93711A700 0.385" ID x 0.55" OD ASME B18.21.1 Split Lock Washers for Socket Head Screws
Split Lock Washers for Socket Head Screws
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Basic Information
Dimension Parameters
Material & Strength Parameters
Installation & Application Parameters
Finish & Compliance Parameters
Special Type Parameters
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Key Features & Benefits at a Glance
- Superior vibration resistance prevents fastener loosening in high-stress applications
- Corrosion-resistant 18-8 stainless steel construction ensures long-term durability in harsh environments
- Black-oxide surface treatment provides enhanced wear resistance and reduced light reflection
- Rockwell C35 hardness rating maintains structural integrity under heavy loads
- Precision-engineered dimensions (0.385" ID, 0.55" OD, 0.125" thickness) ensure perfect fit for 3/8" fasteners
- ASME B18.21.1 compliance guarantees consistent quality and interchangeability
- RoHS 3 and REACH compliance meets international environmental and safety standards
Professional Applications & Engineering Value
This 3/8" split lock washer delivers exceptional vibration-resistant locking performance for demanding industrial applications where mechanical stability is critical. The black-oxide 18-8 stainless steel construction provides superior corrosion resistance, making it ideal for outdoor equipment, marine environments, and chemical processing facilities where moisture and corrosive elements are present. The split lock design creates continuous spring tension against both the fastener and bearing surface, effectively preventing rotational loosening caused by machinery vibration, thermal cycling, or dynamic loads. Engineered to ASME B18.21.1 standards, this industrial-grade washer ensures reliable performance in automotive assemblies, heavy machinery, construction equipment, and aerospace applications where fastener security is non-negotiable.
Specification Summary & Compliance
This standard split lock washer features precise dimensional specifications including 0.385" inner diameter, 0.55" outer diameter, and 0.125" thickness, designed specifically for 3/8" screw size applications. Manufactured in compliance with ASME B18.21.1 standards for dimensional accuracy and mechanical properties. The washer meets RoHS 3 (2015/863/EU) compliance for restricted substances and REACH (EC 1907/2006) regulations regarding chemical safety, ensuring environmental responsibility and workplace safety standards are maintained.
