Stanley Heavy-Duty Staples - TRA7

TRA7 is Stanley's product code for this specific size and type of heavy-duty staple. It is equivalent to other common designations like Type G, Type 4, Type 11, or Type 140.

While these staples are equivalent to common types like 4, 11, or 140, they are specifically designed and tested for optimal performance in Stanley brand tackers. Using them in other brands is at your own risk and may lead to jamming or poor results.

These heavy-duty staples are suitable for fastening wood, upholstery, fabric, insulation, carpet, thin plywood, and other similar materials commonly used in DIY, crafting, and furniture repair.

The number of staples per box can vary by retail packaging. Typically, they are sold in strips, and a standard box might contain several hundred or over a thousand staples.

The TRA7 designation typically refers to a specific standard leg length. For different material thicknesses, you would need to ensure your stapler can accommodate it or look for a different staple type that offers varied leg lengths.

Store staples in a dry place, ideally in their original packaging or a sealed container, to prevent rust and corrosion, which could affect their performance.

Check if the staple magazine is properly loaded and closed. Ensure the correct staple type (TRA7) is being used and that the staples are not jammed. Inspect the stapler's driving blade for obstructions.

Verify that the staples are fully seated in the magazine. Ensure the stapler is in good working condition and the driving force is adequate for the material. For some models, there might be a pressure adjustment.

Clean the staple channel and driving mechanism of the stapler. Ensure staples are loaded straight and not damaged. Using the correct staple size and type for your specific Stanley model is crucial.

Confirm the staple leg length is appropriate for the material thickness. Ensure the staple is driven fully into the substrate. Check for any obstructions preventing full staple deployment.