12.5 cylinder

Brass hidden cylinder hinges are ideal for keepsake boxes, small cabinets, and compact doors. They come in a set of 12 with precise dimensions of 25x4mm (length by diameter), providing a discreet, concealed mount. The brass material offers durability and rust resistance, ensuring reliable performance over time. The folding, invisible design helps maintain a clean exterior while still allowing smooth operation, making them a preferred choice for refined, compact projects.

Hidden cylinder hinges use a concealed mounting system that stays out of sight when the lid or door is closed, delivering a streamlined, elegant look. The set specifies a precise 25mm hinge length and 4mm diameter, which helps you match the hinge to small openings without bulky hardware. Installation is straightforward and quick, eliminating the need for complex tools and enabling clean lines for keepsake boxes or delicate cabinetry.

These hinges are suitable for keepsake boxes, small cabinets, lockers, and petite doors where a discreet hinge is preferred. The concealed design ensures the hardware doesn’t compete with the box’s aesthetics, while brass construction provides a balance of strength and rust resistance. Their compact size makes them a good fit for projects with limited inner depth or slim margins around the lid.

Install with basic tools: align the hinge with the edge of the box or lid, then drive screws into pre‑drilled pilot holes. The simple, fast installation is designed to avoid specialized tools, making it accessible for hobbyists and DIYers. With the 25mm length and 4mm diameter, you can secure a snug fit that preserves the box’s lid alignment while maintaining a clean exterior appearance.

Brass hinges offer natural rust resistance and a classic finish that complements wooden keepsake boxes. The concealed design keeps hardware out of sight, preserving the box’s aesthetic. Consider the box size and lid weight: the 25x4mm hinge is best for smaller to mid‑sized projects where you want dependable support without visible hardware.

They are primarily intended for wooden boxes and small cabinetry where a concealed hinge enhances appearance. Brass’s corrosion resistance helps in humid environments, but you should verify that the depth and mounting points match the hinge specifications (25mm length, 4mm diameter) to ensure a secure fit on metal boxes, which may require different mounting hardware or extra support to achieve the same smooth operation.