This SAE Recommended Practice applies to fasteners/fixing nuts as specified in SAE J694 and SAE J1835 used for disc wheels and demountable rim attachment respectively. Only the test methods necessary to ensure proper wheel or rim assembly are specified. Fasteners for less common and special applications are not included. Purpose To ensure proper assemblies this recommended practice specifies test methods and performance requirements for Metric or English@ one- or two-piece flange nuts@ single ball seat nuts@ inner and outer ball seat nuts@ and rim clamp nuts.