Glass adaptor D50 spherical, SS, satin

The Strofix D50 spherical glass adaptor with extended spacer is a stainless-steel point fixing used to mount 8–17.52 mm glass panels to flat surfaces in balustrades, façades, canopies, and architectural glazing, with deeper standoff options for thicker wall buildups. Supplied in AISI 304 with satin finish, a Ø50 mm domed cover, an M10 screw, and four selectable spacer heights (22, 32, 42, or 52 mm).

The Ø50 mm spherical (domed) cover gives the fixing a distinctive rounded profile and allows small angular deviations between the glass and the mounting surface, which is useful in façade and canopy applications where perfect planarity cannot be guaranteed. Each adaptor secures the glass through a single Ø18 mm pre-drilled hole, with a 17 mm inner bushing diameter, and is clamped by an M10 screw whose length is matched to the chosen spacer: M10 × 70 mm for the 22 and 32 mm spacers, and M10 × 90 mm for the 42 and 52 mm spacers. The taller spacers create a deeper standoff between the substrate and the glass, useful where wall insulation, finish layers, or a pronounced shadow gap are required. 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 and suits architectural glazing where a clean, neutral look is required.

Use cases:

• Architectural glass façades and curtain wall point-fixed panels with insulated wall buildups
• Glass canopies, entrance awnings, and porte-cochères where a deeper standoff is required
• Balustrades with toughened or laminated glass up to 17.52 mm on prepared substrates
• Full-height glass partitions with pronounced shadow gap between wall and panel
• Stair side glazing and mezzanine edge protection
• Retrofit installations on existing walls with finish layers added over structural backing

FAQ:

What glass thickness does this adaptor support?

This D50 spherical variant is suitable for glass panels from 8 mm to 17.52 mm thick, covering standard toughened glass and most common laminated glass buildups used in balustrades, façades, and canopies.

Which spacer height should I choose?

The spacer sets the standoff distance between the substrate and the glass panel. Choose 22 or 32 mm for standard wall construction, and 42 or 52 mm where additional clearance is needed for insulation, finish layers, or a pronounced shadow gap. The supplied screw length follows the spacer: M10 × 70 mm for 22 and 32 mm, M10 × 90 mm for 42 and 52 mm. The spacer is not adjustable after installation — select the correct height at order time.

How does this differ from the 10 mm spacer D50 spherical variant?

The 10 mm variant uses a short M10 × 45 mm screw and creates a minimal wall offset. This SKU offers four taller spacers (22–52 mm) with longer M10 × 70 or × 90 mm screws, suited to deeper substrates such as insulated walls. Choose this SKU when the wall buildup or design requires more than 10 mm between the substrate and the glass.

What does "spherical" mean for this adaptor?

The Ø50 mm cover has a rounded, dome-shaped profile rather than a flat disc. The spherical geometry gives the fixing a distinctive visual signature and allows small angular tolerances between the mounting plane and the glass — useful in façade and canopy applications where perfect alignment is hard to guarantee.

What size hole must be drilled in the glass?

A minimum Ø18 mm hole is required for the M10 screw. The adaptor uses a 17 mm inner bushing diameter. 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.

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.