The Simpson Strong-Tie T11A125RNJ 15 Degree Wire Coil Full Round Head Ring-Shank Roofing Nail is a collated roofing nail designed for fastening asphalt roofing and synthetic slate to wood roof decks. Model Number T11A125RNJ. This is a collated roofing nail designed for roofing installation with compatible pneumatic nailers. If you are roofing near the coast, working on a job that needs stainless fasteners, or just want a nail that holds well in OSB and plywood, this is the version to look at.

What matters here is the combination of Type 316 stainless steel, a ring-shank body, and a full round head. The Type 316 material is the big selling point. It gives you severe-level corrosion resistance compared with lower-grade options, which is why this nail makes sense for seaside applications and other harsh environments. The ring shank adds withdrawal resistance, so the nail locks into the deck better than a smooth-shank roofing nail. On a roof, that extra holding power is not a throwaway spec. It directly affects how securely the material stays attached over time.

The nail itself is sized for common roofing work with an 11 gauge body, 1-1/4 inch length, 0.120 inch shank diameter, and 3/8 inch head diameter. That large flat head gives the material solid bearing surface, while the diamond point helps the nail start cleanly and drive easier. In plain terms, it is built to feed reliably, drive efficiently, and hold roofing materials without overcomplicating the job.

Because this is a 15 degree wire coil roofing nail, it is made for fast loading and repeated fastening on the roof. That matters when you are moving through bundles and do not want to waste time reloading loose fasteners. Simpson Strong-Tie positions this nail for fast driving and strong long-term holding, and that lines up with what most roofers actually need: efficient installation today and dependable attachment after the weather starts doing its work.

On the application side, this nail is specifically called out for asphalt roofing and synthetic slate roofing. It is also noted for secure attachment into OSB or plywood roof decks. That makes it a good fit for roofing crews, repair contractors, and builders working in environments where corrosion resistance cannot be treated like an afterthought. If the job is inland and dry, you may not need a Type 316 nail. If the job is coastal, exposed, or specified for stainless, this is the smarter buy.

One more practical note: this product is listed as a special-order item by Simpson Strong-Tie, so lead times and minimum order quantities may apply depending on availability. For buyers who already know they need stainless collated roofing nails in bulk, that is usually not a dealbreaker. It is just something worth knowing before you schedule the job around the delivery.

Simpson Strong-Tie T11A125RNJ 15 Degree Wire Coil Full Round Head Ring-Shank Roofing Nail

If you need stainless collated roofing nails for coastal work or any roof where corrosion resistance actually matters, this is the right kind of fastener to spend money on.

• Who it's for: Roofers, repair crews, and contractors fastening asphalt roofing or synthetic slate over OSB or plywood, especially in seaside or high-moisture environments.
• Why it stands out: Type 316 stainless steel plus a ring shank is the combo that matters here. You get strong corrosion resistance and better holding power in the deck.
• Worth knowing: This is a bulk 3,600-count coil nail product and Simpson lists it as special order, so check availability before the job calendar gets tight.

• What roofing materials is this nail intended for? It is specified for asphalt roofing and synthetic slate roofing applications.
• What roof deck materials does it hold in? Simpson Strong-Tie states the annular ring shank provides secure attachment to OSB or plywood roof decks.
• Is this a stainless nail? Yes. The T11A125RNJ is made from Type 316 stainless steel.
• How many nails are in the package? Packaging quantity is 3,600 nails.