PRIME-LINE SP 9637 Extension Spring 12 Inch (30.48 cm) | Heavy Duty Spring Steel for Garage Doors & Appliances

• For use in a variety of applications; appliances, automotive, marine, toys, tools, mechanical devices, contraptions and more
• These extension springs are designed with open ends for easy and reliable fastening to fixed and moving parts
• Spring dimensions: 1 inch outside diameter, 12 inch length, 0.105 inch wire diameter, 35.4 lbs. maximum safe load, 11.7 inch maximum deflection
• All springs come in a beautiful, corrosion resistant, nickel plated finish allowing them to be used both indoors and out
• Constructed of durable spring steel (tempered steel wire) to provide optimum retraction when stretched

• Identify Correct Spring — Measure the old spring's length, outside diameter, wire diameter (by compressing 20 coils), and safe load capacity. Ensure it matches the PRIME-LINE SP 9637's 12" (30.48 cm) length, 1" (2.54 cm) OD, 0.105" (0.267 cm) wire, and 35.4 lbs. capacity.
• Ensure Safety Precautions — For garage doors, release all tension from the existing spring system. Use proper winding bars and safety equipment. Never work on a tensioned spring without adequate knowledge or assistance.
• Attach and Secure — Using the open loop ends, securely fasten the new PRIME-LINE SP 9637 spring to the corresponding anchor points on the garage door track or frame. Ensure a firm connection for optimal retraction.
• Test and Verify — Slowly re-apply tension to the system. Test the garage door's balance and operation. Ensure the spring extends and retracts smoothly without binding or excessive noise.

Typical situations where PRIME-LINE SP 9637 Extension Spring 12 Inch (30.48 cm) | Heavy Duty Spring Steel for Garage Doors & Appliances helps — illustrative scenarios, not customer reviews.