Master Lock Brass Padlock 40mm Fortress 4-Pack FM1840QAU

Master Lock FM1840QAU Brass Padlock – 40mm Fortress, 4-Pack

The Master Lock FM1840QAU Fortress Brass Padlock 4-Pack is built for reliable, everyday protection across multiple applications. Designed with a solid 40mm brass body and hardened steel shackle, each padlock resists corrosion and cutting—making them ideal for securing gates, lockers, cabinets, sheds, toolboxes, and storage units. With 4-pin cylinders and dual locking levers, these padlocks offer increased resistance against tampering and picking. Whether for residential, school, or commercial use, this 4-pack delivers dependable security backed by the trusted Master Lock brand.

Key Benefits

• 4-pack value for multi-point security setups
• Solid brass body offers strong corrosion resistance
• Hardened steel shackle resists cutting and sawing
• Dual locking levers enhance pry resistance
• 4-pin cylinder provides better protection against picking

Technical Specifications

• Model Number: FM1840QAU
• Body Material: Solid Brass
• Shackle Material: Hardened Steel
• Body Width: 40mm
• Shackle Diameter: 6mm
• Shackle Height (Vertical Clearance): 21mm
• Shackle Width (Horizontal Clearance): 21mm
• Lock Type: Keyed
• Pack Contents: 4 padlocks with 4 keys

Usage or Application Tips

Perfect for securing multiple access points—like lockers, sheds, cabinets, or gates. A great value solution for property managers, schools, shared workspaces, and home users needing reliable, everyday padlocks.

Why Do You Need This?

The FM1840QAU 4-pack combines durability, convenience, and consistent security performance. Trusted by professionals and homeowners alike, it’s ideal when you need reliable protection across several access points.