YINETTECH 304 Stainless Steel Heavy Duty Letter Plate Spring 36mm Letterbox Replacement Springs Compatible with Carlisle Brass Letter Plates

YINETTECH 304 Stainless Steel Heavy Duty Letter Plate Spring 36mm Letterbox Replacement Springs Compatible with Carlisle Brass Letter Plates

• Our mailbox spring is compatible with Carlisle's large-size brass mailbox plates.
• Mailbox spring wire diameter: 1.6mm, spring length: 36mm, spring inner diameter: 5.9mm, spring outer diameter: 9.1mm, one end is 32mm long, and the other end is 7mm long.
• Mailbox springs are suitable for door and window letterboard installation in various building types such as homes, offices, apartment buildings, villas, etc.
• The mailbox spring is made of 304 stainless steel, has good elasticity and corrosion resistance, and can maintain excellent performance under various environmental conditions.
• This spring can enhance the security of the letter board, prevent malicious damage or illegal intrusion, and protect the privacy and property safety of users.