To determine the correct size(s), you need to specify what you're working on. For example:
* Tailgate: This often uses a specific size, sometimes even a combination of sizes.
* Bed rails/stake pockets: These may use different sizes depending on the specific bolt.
* Bed liner attachment: If you have an aftermarket bed liner, the fasteners will depend entirely on the liner's manufacturer.
Recommendation:
The best approach is to:
1. Identify the specific bolts: Locate the bolts you need to work with.
2. Inspect the bolt head: Look closely at the bolt head to see the Torx size (it will be marked on the head, but might be difficult to read). Common sizes for vehicles are T25, T30, T40, and T45.
3. Take a bolt to a hardware store: Bring a bolt with you to match it to a Torx bit. This is the most reliable way to ensure you get the correct size.
4. Use a Torx bit set: Buying a Torx bit set that includes several common sizes (e.g., a set ranging from T10 to T50) will cover most possibilities.
Without knowing the specific application, it's impossible to give you a definitive answer.
