Improve your folding door performance with high-quality Regenschirmschrauben (umbrella screws) made to precise dimensions for easy, error-free installation and long-term value. Purpose and function: these metal Regenschirmschrauben are engineered to fit the lower pivot points of folding doors, ensuring smooth opening and closing while supporting the door’s load reliably. Key attributes: Material: durable metal construction for wear resistance and extended service life. Size and fit: precision-manufactured to match the lower hinge/pivot geometry of standard folding doors for a secure fit. Performance: reduces play and friction at the pivot, contributing to quieter, smoother operation. Why you need them: Replace worn or mismatched pivot hardware to restore proper alignment and function. Avoid repeated repairs by using purpose-designed parts that resist wear. Easy installation saves time and reduces service costs. Practical applications: 1. Repair or upgrade the lower pivot points on residential folding doors and closet flap doors. 2. Maintain smooth operation of cabinet, utility compartment, or vehicle hatch folding mechanisms that use lower pivot hardware. 3. Use in workshop or building maintenance tasks where durable pivot screws are required for repeated opening/closing cycles. Reliability: trust these quality Regenschirmschrauben to support your folding door securely and consistently, reducing rattles and improving operational life.