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

Product description

• 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.