This spider fitting is typically cast from high-quality stainless steel. Depending on your project requirements, it can be supplied in SUS304 for general interior and exterior use, or SUS316 for areas requiring superior corrosion resistance, such as coastal regions.

Yes. Point-supported spider fittings require precise holes to be drilled and countersunk (or straight-drilled, depending on the routel used) into the tempered glass panels prior to installation.

The GW-F200-4 generally refers to the 4-way spider arm body itself. Articulated glass bolts (routels) are usually selected and purchased separately because the required bolt length and type depend entirely on the thickness of your specific glass panels (e.g., 10mm, 12mm, or double-glazed units).

The large central hole is used to anchor the spider fitting securely to the primary structural support system, such as a steel fin, post, or tension cable truss, using a heavy-duty connector bolt.

The GW-F200-4 is highly versatile and is structurally rated for both vertical curtain walls and horizontal/angled applications like skylights and glass canopies, provided the overall engineering accounts for the respective snow, wind, and dead loads.