Resources

Buying guides and technical articles on wire mesh, window screen and fence products from Tongwei’s technical team.

Guides

Factory photo of black powder-coated security screen mesh: round-hole finish on the left and square-hole finish on the right, with a small disc of square-hole mesh placed on the round-hole sheet

Security Screen Mesh Guide

Square-Hole vs Round-Hole Security Screen Mesh: Airflow, Light, Insects and Security

Powder-coated security screen mesh can be finished with square holes or round holes. The wire and weave are the same; the coating is not. Here is how the two finishes compare, with open-area figures for 0.8, 0.9 and 1.0 mm wire.

Updated 10 October 2026