SPEC United Springs is the world's largest precision spring manufacturer, founded in 1858. Initially focused on producing clock springs, it has a history of 135 years and is renowned for its excellent and stable quality. Both in terms of spring production technology and equipment, it ranks first in the world and is a major spring supplier to well-known institutions in the United States today.

The SPEC joint spring series products include: mold springs, compression springs, tension springs, round wire springs, wave springs, disc springs, six finger elastic washers, torsion springs, nitrogen gas springs, and spring box sets, etc. The product sizes are standardized and the types are diversified, providing you with diverse choices.

SPEC mold spring SPEC six finger elastic washer

SPEC compression spring SPEC tension spring



Japanese standard round wire spring