Glass adaptor D40, SS, satin

The Strofix D40 glass adaptor with face screw is a stainless-steel point fixing used to mount 8–17.52 mm glass panels close to flat surfaces in balustrades, façades, and architectural glazing, with a Ø40 mm cover retained by a visible decorative screw. Available in AISI 304 or AISI 316 grade with a fixed 10 mm spacer, satin finish, and an M10 × 50 mm screw.

The 10 mm un-threaded spacer creates a short standoff between the wall and the glass, while the cover-with-screw construction gives the fixing a distinctive exposed-fastener appearance — different from the smooth cap variants in the D40 family. Each adaptor secures the glass through a single Ø14 mm pre-drilled hole, with a 13 mm inner bushing diameter, and is clamped by an M10 × 50 mm stainless-steel screw. AISI 304 suits interior and standard exterior installations; AISI 316 contains added molybdenum for higher resistance to chlorides and salt air, making it the correct choice for coastal and high-humidity environments.

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 in mid-size formats
• Balustrades with toughened or laminated glass up to 17.52 mm
• Glass partitions in offices, retail, and hospitality spaces
• Pool fencing and seafront balustrades (AISI 316 recommended)
• Stair side glazing and mezzanine edge protection
• Projects where an exposed decorative cover screw is preferred over a smooth cap

FAQ:

What glass thickness does this adaptor support?

This D40 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 partitions.

What size hole must be drilled in the glass?

A minimum Ø14 mm hole is required for the M10 screw. The adaptor uses a 13 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.

How does this differ from the other D40 flat-cover SKUs?

This SKU has a Ø14 mm glass hole, 13 mm bushing, and a cover retained by a visible face screw. The flat-cap D40 SKUs use larger holes (Ø12 or Ø15 mm with 11 or 14 mm bushings) and a smooth cover cap. Choose this SKU when the project visual language calls for a visible decorative screw on the cover, or when matching the look of the D60-with-screw family at a smaller diameter.

What is the difference between AISI 304 and AISI 316?

AISI 316 contains molybdenum, which provides higher resistance to chlorides and salt air. Specify AISI 316 for coastal, pool, and high-humidity installations. AISI 304 is sufficient for interior use and standard outdoor conditions inland.

Is the spacer height adjustable?

No. This SKU ships with a fixed 10 mm un-threaded spacer, which sets the standoff distance between the wall and the glass. The spacer cannot be adjusted after installation — choose a different D40 variant if a different offset or adjustable spacer is required.

Can I install it myself?

Yes, with basic tools: a drill with the correct bit for your wall material, a torque wrench, an M10-rated wall anchor matched to the substrate, 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.