Glass adaptor D30, SS, polished

The Strofix D30 polished glass adaptor is a stainless-steel point fixing used to mount 6–12.76 mm glass panels to flat surfaces in balustrades, façades, and partitions. Supplied in AISI 304 with a fixed 15 mm spacer and a mirror-polished finish.

Each adaptor secures the glass through a single Ø14 mm pre-drilled hole and is tightened with an M8 × 40 mm stainless-steel screw. The Ø30 mm cover provides a low-profile appearance while distributing load evenly across the contact point. AISI 304 is the standard chromium-nickel stainless steel and provides reliable corrosion resistance for indoor installations and standard protected outdoor environments away from coastal conditions.

The polished finish produces a bright, mirror-like surface that reflects surrounding light and visually integrates with chrome and glass interiors. Compared to a satin finish, polished stainless steel offers a more decorative, high-shine appearance, but shows fingerprints and fine surface marks more readily.

Use cases:

• Residential balcony and staircase balustrades with toughened or laminated glass
• Glass partition walls in offices, retail, and hospitality spaces
• Hotel lobbies, showrooms, and luxury retail interiors where reflective hardware is preferred
• Glass canopies, entrance awnings, and shower enclosures
• Stair side glazing and mezzanine edge protection
• Light commercial façade and curtain wall infill panels

FAQ:

What glass thickness does this adaptor support?

The D30 polished glass adaptor is suitable for glass panels from 6 mm to 12.76 mm thick, covering standard toughened glass and common laminated glass buildups.

What size hole must be drilled in the glass?

A minimum Ø14 mm hole is required for the M8 through-screw. The hole must be pre-drilled by the glass supplier before tempering — toughened glass cannot be cut or drilled after heat treatment.

What is the difference between polished and satin finish?

The polished finish is mirror-bright and highly reflective, suited to decorative interiors and luxury retail environments. The satin finish is matte and reduces visible fingerprints and micro-scratches. Polished hardware shows handling marks more readily and is generally preferred for indoor use where appearance is the main selection driver.

What stainless steel grade is used?

This SKU is supplied in AISI 304, the standard chromium-nickel stainless steel. AISI 304 provides reliable corrosion resistance for indoor installations and standard protected outdoor environments. For coastal, pool, or chloride-rich locations, a higher-grade stainless steel such as AISI 316 should be specified.

Is the spacer height adjustable?

No. This SKU ships with a fixed 15 mm spacer, which sets the standoff distance between the wall and the glass panel. The spacer cannot be adjusted after installation — choose a different D30 variant if a larger offset is required.

Can I install it myself?

Yes, with basic tools: a drill with the correct bit for your wall material, a torque wrench, and pre-drilled glass. Handle glass panels with two people and follow the glass supplier's recommended torque to avoid cracking.

About glass adaptors

A glass adaptor is a stainless-steel point fixing that attaches a glass panel to a supporting structure through a drilled hole in the glass. It transfers load from the panel to the substrate while keeping visible hardware to a minimum, leaving the glass as the main visual element in balustrades, façades, partitions, canopies, and shower enclosures.

Strofix supplies round glass adaptors from Ø12 mm up to Ø70 mm (including D30, D38, D40, D50, D60 and D70) plus square 38×38 and 40×40 versions, in AISI 201, AISI 304 and AISI 316 stainless steel, with satin, polished or painted finishes and a broad range of spacer heights. The right adaptor depends on glass thickness, wall-to-glass offset, environment and the type of supporting surface.

Glass adaptors are essential components used to securely connect glass panels to supporting structures while maintaining a clean, modern appearance. They are widely applied in glass railings, partitions, façades, canopies, and other architectural systems where both stability and design matter. By creating a reliable fixing point between glass and metal or wall-mounted surfaces, glass adaptors help distribute load evenly and ensure structural safety without compromising transparency.