The Ontario Building Code | Screws
9.24.1.4. Screws
(1) Screws for the application of cladding, sheathing or interior finish materials to steel studs, runners and furring channels shall conform to,
(a) ASTM C954, "Steel Drill Screws for the application of Gypsum panel Products or Metal plaster Bases to Steel studs from 0.033 in. (0.84 mm) to 0.112 in. (2.84 mm) in Thickness", or
(b) ASTM C1002, "Steel Self-Piercing Tapping Screws for the application of Gypsum panel Products or Metal plaster Bases to wood studs or Steel studs".
In Plain Language
Screws used to fasten steel framing must conform to the standards referenced in this article, ensuring consistent fastener performance with this thinner-gauge material.
This is a plain-language summary of the 2012/2017 Ontario Building Code text above, for general understanding only and not a substitute for the Code. Always confirm current requirements against the 2024 edition (O.Reg. 163/24) or a qualified professional before construction.