Copper Socket Spring Clip - Wholesale - Price - Supplier. Socket springs are connection devices used for electrical equipment requiring grounding, primarily for securing the plug and ensuring conductivity. This necessitates that socket springs possess excellent electrical conductivity, followed by good elasticity and flexibility. The force of the spring clip's engagement with the plug should be neither too loose nor too tight, allowing for a secure grip on the plug while still being easily removable. Additionally, they must have good resilience to withstand repeated insertion and removal, with the elasticity and resilience degradation remaining within acceptable limits. The national standard allows for 40,000 cycles of insertion and removal.