| 01 | Stainless-steel clamp bracket specialist | Confirm supported glass thickness, clamp dimensions, pad material, and whether drilling is required. | AISI 304 and 316 stainless steels are commonly specified for corrosion-resistant hardware; verify the stated grade and finish. | Request material documentation and installation instructions for the exact model. |
| 02 | Brass architectural-hardware supplier | Check body material, coating type, finish options, and compatibility with the specified glass edge. | Coating appearance and corrosion performance depend on the coating system and test conditions. | Ask for finish samples and written cleaning and maintenance guidance. |
| 03 | Aluminium extrusion bracket manufacturer | Confirm alloy, wall thickness, profile dimensions, mounting method, and intended indoor or outdoor use. | Anodizing is a surface treatment for aluminium; coating thickness and performance should be specified for the application. | Request a dimensioned drawing and finish specification. |
| 04 | Zinc-alloy die-cast hardware supplier | Check the alloy designation, casting quality controls, mounting hardware, and maximum recommended service environment. | The corrosion resistance of finished zinc-alloy parts depends on the alloy and protective finish. | Request finish specifications and evidence that the bracket has been tested for its intended use. |
| 05 | Custom-fabricated bracket supplier | Confirm drawing approval, tolerances, edge clearances, hole positions, and prototype process. | For heat-treated flat glass, ASTM C1048 covers heat-strengthened and fully tempered glass products. | Coordinate bracket geometry with the glass fabricator before production. |
| 06 | Concealed-support system supplier | Check wall substrate requirements, anchor type, support spacing, and whether the design suits the shelf depth. | There is no single universal load rating for glass shelf brackets; capacity depends on the complete installation. | Obtain a tested load rating with the stated substrate, fixing method, spacing, and safety conditions. |
| 07 | Adjustable or multi-thickness clamp supplier | Verify the actual clamping range, adjustment mechanism, pad replacement options, and prevention of glass-to-metal contact. | Glass thickness compatibility is model-specific and should be confirmed against the product drawing. | Request the permitted glass-thickness range and installation torque, if applicable. |
| 08 | Wet-area hardware supplier | Confirm suitability for humid environments, drainage or water-trapping details, and compatible cleaning products. | ISO 9227 specifies salt-spray corrosion tests; it does not by itself establish a universal service-life rating. | Review the test method, duration, acceptance criteria, and relevance to the intended environment. |
| 09 | High-volume standard-hardware supplier | Check catalogue consistency, packaging, spare-part availability, production lead time, and order minimums. | A stated quality-management certification should be checked for scope, issuing body, and validity. | Request current certificates and a sample from the production specification being quoted. |
| 10 | Project-supply and sourcing partner | Confirm traceability, inspection plan, export packaging, documentation, and responsibility for specification changes. | A supplier’s declared load capacity should identify the test configuration and whether the value applies per bracket or per pair. | Compare written specifications and test reports rather than relying on an unqualified capacity figure. |