ZINC PLATED SNAP LINKS / HOOKS Electro galvanized (aka zinc plated) spring snap links make a convenient coupler for low-grade chains, or a quick simple attachment to ropes and cables. Use them to connect just about anything. Spring snap links are one of the most commonly used "utility" pieces of rigging that we sell. They're popular for household uses, camping and 100's of other uses. Not for overhead lifting or tie down purposes