You searched for "code lock"
Capri
Capri, Nickel Plated Stainless Steel Lock Nut, EN 60423, M40mm
Part: CAP224094
Large nickel-plated stainless steel lock nut M40 for high-specification industrial fastening needs.
Capri
Capri, Nickel Plated Stainless Steel Lock Nut, EN 60423, M40mm
Part: CAP223294
M40 stainless steel lock nut with nickel plating for industrial fastening and assembly.