These are twin - thread PZD countersunk screws. They are treated with yellow zinc passivation to offer excellent corrosion resistance. The pack includes a wide range of sizes: 3 x 16mm, 3 x 20mm, 3.5 x 25mm, 3.5 x 30mm, 4 x 30mm, 4 x 35mm, 4 x 40mm, 5 x 40mm, 5 x 50mm, 5 x 60mm, and 5 x 80mm. It comes with a convenient storage case that has individual compartments for easy organization. Features: Yellow zinc passivation for great corrosion protection. Twin - thread PZD design for better performance. A variety of useful sizes. Warranty: You get a 1 - year manufacturer warranty. Just register the product on the manufacturer's website.
Using these screws is easy. First, pick the right size for your job from the wide range available in the pack. Make sure to match the screw size to the material you're working with. When screwing, apply steady pressure to ensure the screw goes in straight. As for maintenance, since they're yellow zinc passivated, they're quite resistant to corrosion. But it's still a good idea to keep them in a dry place when not in use. Regarding the warranty, remember to register the product on the manufacturer's website within the specified time to enjoy the 1 - year warranty. Keep the storage case handy as it helps you keep the screws organized and easy to find when you need them.
