Zi-Ea factory is one of Taiwan's leading screw manufacturers. We have more than 30 years experiences of manufacturing screws, nuts and bolts.

We have not only the capacity of manufacturing large quantities of screws but also the technologies for custom-made production, OEM contract manufacturing, wholesale and overseas transport.

Manufacturing Project:

Track Bolts

Cup Square Head Bolts

Round Hand Ribbed Neck Bolts

Flange Bolts, Fitting Up Bolts

Coil Thread Bolts


Cup Square Head Bolts

Customer Made Fitting Up Screws

Socket Flange Screws

Customer Made Special Bolts