what screws to use for metal studs 04
Metal studs are vertical framing members used in the construction of interior walls and ceilings, and sometimes for exterior walls in non-residential buildings. Metal studs are often used in conjuction with a U track or U channel, which is a thin, lightweight, high-performance, galvanised steel section, which is fixed perpendicular to the metal studs as the top and bottom of the wall framing structure. They serve a similar purpose to traditional wood studs, providing a structural framework to which wall coverings like drywall or sheathing can be attached.
In modern construction, metal studs have become increasingly popular for their light weight, dimensional stability, fire resistance, and ease of installation. They are stronger and more durable than timber studs, making them less likely to warp, twist or shrink over time. This ensures that the framing remains structurally sound and strong, even in adverse weather conditions.
Whether you’re framing interior partitions, building soffits, or constructing ceilings, metal studs offer a reliable alternative to traditional wood framing. However, selecting the right screws for attaching metal studs is a critical step that influences the structural integrity, safety, and efficiency of the entire project. Unlike wood framing, where screws bite easily into the material, metal studs require specialized screws designed to penetrate thin steel and ensure a secure hold.
This essay explores 10 must-know tips to help you choose the right screws for metal studs—whether you’re a professional contractor or a DIY enthusiast.
The first factor to consider is the type of screw. Metal studs used in construction typically range from 0.5mm to 1.5mm in thickness. Common thicknesses include 0.50mm, 0.55mm, 0.60mm, and 0.75mm commonly used in residential and light commercial construction.
For most metal stud applications, self-drilling screws or Tek screws for short, are the best choice. Since metal studs are mostly made of thin-gauge steel, self-drilling screw points work perfectly and shall penetrate with ease.
On the other hand, self-tapping screws require a pre-drilled hole, making them less efficient for standard metal stud installation. For thicker gauges 1.6mm (16-gauge) and above, pre-drilling may still be necessary, but for most framing work, self-drilling screws save significant time.
Screw length is crucial for achieving strong connections without compromising the integrity of the studs. For typical single-stud connections—such as securing drywall track to studs or studs to top and bottom plates—a screw length of 13mm to 30mm (½ inch to 1¼ inches) is sufficient. Longer screws 30mm (1½ inches) or more may be needed for double layers of steel or when attaching accessories like heavy brackets.
The key is ensuring the screw fully penetrates both layers of metal by at least three threads to achieve proper holding strength.
The diameter (or gauge) of the screw affects both its holding power and the amount of torque required to drive it. For most metal stud framing, #6 or #8 screws are the standard choice. They provide adequate shear and tensile strength while minimizing the risk of stripping or deforming the metal stud.
Beefier screws, like #10 or above are sometimes used for attaching heavier accessories, but they require higher torque and may deform thinner gauge studs.
Not all self-drilling screws are created equal. Self-drilling points are categorized by number, indicating their drilling capacity. For example, a #6-No. 2 point can typically drill through up to 2.3mm (0.10 inches) of steel, while a #6-No.3 point can handle slightyly thicker steel. For typical 0.63mm (25-gauge) or 1mm (20-gauge studs), a No.2 point is usually sufficient.
Understanding point design helps you match the screw to the stud gauge without excessive stripping or overheating during installation.
The head style affects both installation ease and the final appearance. The three most common head types for metal stud screws are:
Low-profile with a slighly raised beveled head and larger diamter compared to the shank. Sits flush agains the surface while providing a wider bearing surfacel
Wide, flat surface, offering good bearing and minimal surface distortion. Ideal for general framing and drywall track installation.
Combines a hex drive with an integrated washer for added bearing surface, excellent for heavy-duty framing or when using power tools with hex drivers.
Tapered design that sinks flush with the surface, commonly used for attaching drywall but also suitable for light framing where a flush finish is desired.
Choosing the right head style ensures a secure hold and helps avoid protrusions that could interfere with drywall or finishing.
The drive type refers to the recess in the screw head that engages with the driver bit. Phillips drive is the most common for metal stud screws, but it’s prone to cam-out (slipping) at high torque. Square drive and Torx drive offer better engagement and reduce the risk of stripping, making them ideal for high-volume or high-torque applications with power tools.
Selecting a drive type that matches your tools and installation needs will improve efficiency and reduce frustration.
Metal stud framing often occurs in indoor environments, where standard zinc plating is usually sufficient. However, if the framing is in a moist or humid area—such as basements, bathrooms, or exterior walls—consider screws with Ruspert or equivalent corrosion resistant coatings or thick zinc plating finishes. These coatings protect against rust and extend the life of the fasteners.
For high-humidity or exterior metal framing, stainless steel screws can be used, though they’re typically reserved for non-load-bearing applications due to their lower shear strength.
When attaching structural components—such as heavy mechanical units, headers, or bridging—ensure that the screws you select have adequate shear strength and tensile strength to handle the applied loads. Manufacturers often provide technical data on their screws’ mechanical properties, including load ratings for different gauges of steel. Always match the screw’s capacity to the demands of the application to ensure structural safety.
For any structural metal framing project—especially in commercial construction or projects subject to inspection—use screws that comply with the local building and construction standards, and make sure that the supplier is ready to provide letter of conformity or test reports to back it up. Using non-compliant screws can lead to inspection failures or even compromise the structural integrity of the assembly.
Always check that the screws you choose meet local building codes and manufacturer recommendations for the specific application.
Efficiency on the job site is critical, and the right screws can make all the difference. Self-drilling screws with sharp points reduce installation time by eliminating the need for pilot holes. Additionally, screws with properly designed threads minimize the risk of “walking” or misalignment during installation.
Compatibility with power tools—such as hand drills with torque limiters or collated screw system attachements—further speeds up the process and reduces worker fatigue. Always select screws that are easy to handle and drive consistently with the tools you plan to use.
Choosing the right screws for metal studs isn’t just a detail—it’s a key element in building safe, strong, and efficient structures. By understanding the 10 must-know tips—screw type, length, gauge, point design, head style, drive type, coating, strength, code compliance, and installation efficiency—you’ll be equipped to select the best screws for your project.
The right fastener doesn’t just hold metal together; it holds your entire structure to the highest standards of quality and safety. By investing time in selecting the correct screw, you invest in the success and durability of your build.