Metric grade 8.8 tensile strength (which is generally 116,000 psi).
Genuine British Leyland OEM "new old stock" made in the UK.
Diameter 5/16" inch UNF
Length 5" inch (127 mm)
Use with NH605041 and WL600051 Heavy Duty Washer
See item number 15 in the illustration.
Fitted to tractors: