Glass adaptor D30, SS, satin

The Strofix D30 glass adaptor with 6 mm spacer is a stainless-steel point fixing used to mount thick 8–21.52 mm glass panels close to flat surfaces in balustrades, façades, and partition systems. Supplied in AISI 304 with a fixed 6 mm spacer, a flat cover, and a satin finish.

The 6 mm spacer gives a minimal wall offset, and the adaptor is dimensioned specifically for thicker glass buildups: the 8–21.52 mm range covers structural laminated glass (for example 8.8, 10.76, 12.76, 16.76, 17.52, and 21.52 mm combinations) used in heavier balustrades and full-height glazing. Each adaptor secures the glass through a single Ø12 mm pre-drilled hole and is tightened with an M8 × 45 mm stainless-steel screw passing through the un-threaded spacer. The Ø30 mm flat cover sits close to the glass surface and distributes 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 satin finish reduces visible fingerprints and micro-scratches compared to polished stainless steel, giving a clean, neutral look that suits commercial railings and architectural glazing.

Use cases:

• Balustrades with thick laminated glass where a minimal wall offset is required
• Full-height glass partitions and floor-to-ceiling glazing in offices and retail
• Stair side glazing with structural laminated panels
• Glass façades and curtain wall infill with heavier glass buildups
• Mezzanine and gallery edge protection with laminated safety glass
• Interior glazed walls where the fixing must sit close to the wall line

FAQ:

What glass thickness does this adaptor support?

This D30 variant is dimensioned for glass panels from 8 mm to 21.52 mm thick. The range covers thicker single-pane and laminated glass buildups commonly used in heavy-duty balustrades and full-height glazing, such as 10.76 mm, 12.76 mm, 17.52 mm, and 21.52 mm laminated panels.

How does this differ from the standard D30 glass adaptor?

The standard D30 supports 6–12.76 mm glass with a Ø14 mm hole and spacer heights from 15 mm upward. This variant is built for thicker 8–21.52 mm glass, uses a smaller Ø12 mm hole, and has a 6 mm spacer for a minimal wall offset. Choose this SKU when the glass is heavier than 12.76 mm or when the installation requires the fixing to sit close to the wall.

What size hole must be drilled in the glass?

A minimum Ø12 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 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 6 mm spacer (without internal thread), which sets a short 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 thicker laminated panels with two people — they are considerably heavier than standard 8 mm toughened glass — 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.