Pay Attention ToEnvironment! INTERIOR or EXTERIOR? Is the screw DRILLING CAPACITY suitable for your need? When fixing THICK STEEL to timber, steel must be PRE-DRILLED.
Is the screw LENGTH enough for your fixture?
Screws pointside PENETRATION LENGTH should be at least 6x DIAMETER, unless it is not specified otherwise by the manufacturer.Load-carrying screws should meet the requirements of the CERTIFICATES or STANDARDS
Is the COLOR important?
Important load-bearing connections with heavy loads should be calculated by CONSTRUCTION ENGINEER!