Scan Brass Padlocks provide an excellent level of security. Each lock features a brass cylinder mechanism that is accurately machined making it durable and rust resistant. They have stainless shackle springs and a steel shackle with a self-locking action. All brass padlocks above 30mm in body size have hardened anti-cut and saw resistant shackle with double locking tongues for improved security. Each padlock is supplied with 3 keys. Pack of 2 Brass Padlocks 40mm Keyed Alike. Specification: Padlock Width: 40mm.Shackle Height: 22.8mm.Shackle Diameter: 6.2mm.Shackle Width: 21mm.Security Rating: 6.