The Simpson Strong-Tie S13A200SNC 15b0 Wire Coil Full Round Head Ring-Shank Siding Nail is a collated siding nail built for fastening wood siding and fiber-cement boards with a pneumatic coil nailer. This is a collated siding nail designed for exterior siding fastening. Model Number: S13A200SNC. In this version, you get a 2 inch long, 13 gauge, Type 304 stainless steel nail with a full round head, annular ring shank, diamond point, and a 3,600-count package for higher-volume work.

What matters most here is how the nail is set up for real siding work. The annular ring shank increases withdrawal resistance, so the fastener hangs on better once it is in the board. That is important on siding where seasonal movement, wind, and repeated wet-dry cycles can work a weaker fastener loose over time. Simpson Strong-Tie also calls out that this ring-shank design helps reduce cupping of siding boards by providing a more secure attachment.

The 2 inch length, 0.092 inch shank diameter, and diamond point make this nail a practical middle-ground option for common siding applications where you want solid penetration without overcomplicating the install. The diamond point helps the nail start cleanly and drive more easily. The slender gauge supports easier driving as well, which is worth paying attention to when you are running a lot of fasteners in a day and do not want every shot fighting the material.

One of the better details on this nail is the head design. It uses a full round head with a checkered pattern. That checker pattern is not there just for looks. Simpson Strong-Tie notes that it blends better with wood grain, cuts glare from sunlight, and accepts surface finishes more cleanly. If the fastener head may remain visible, that small detail makes the finished job look less obvious and less shiny than a plain head.

Another jobsite-friendly detail is the generous underhead fillet. In practical terms, that means the nail can be driven flush or slightly countersunk without crushing the surrounding wood as easily. On siding work, especially when appearance matters, that can help you avoid a rough-looking finished surface around the fastener head.

Material choice is a big reason someone buys this specific version. S13A200SNC uses Type 304 stainless steel, which gives you corrosion resistance suited to many exterior environments. If you are matching fastener material to siding or trim exposure conditions, that matters. Simpson Strong-Tie also offers Type 316 options in the broader family for harsher seaside conditions, but this exact model is the Type 304 version, which is the right call when you need stainless performance without stepping up to the more specialized marine-grade option.

As a collated fastener, this nail is built for production. The 15 degree wire coil format feeds through compatible pneumatic coil nailers and keeps reload frequency down compared to smaller packs. A 3,600-count box makes sense for contractors, siding crews, remodelers, and serious builders who do not want to stop every hour to restock nails. It is also compatible with many major manufacturers' pneumatic tools, and Simpson Strong-Tie points users to its Fastener Finder and compatibility matrix when they need to confirm tool fit.

Who should buy it? If you install wood siding, fiber-cement boards, or exterior cladding and you want a stainless collated nail with better holding power than a smooth shank, this is the one to look at. It is a solid fit for siding contractors, remodelers, builders, and repair crews already running 15 degree wire coil nailers. If your work is inland or in typical exterior conditions and you want stainless corrosion resistance with high pack quantity, the Simpson Strong-Tie S13A200SNC makes a lot of sense.

A solid stainless siding nail for crews that care about hold and finish

The Simpson Strong-Tie S13A200SNC gives you the stuff that actually matters in siding work: stainless material, ring-shank holding power, and a head design that does not look sloppy when the job is done.

• Who it's for: Siding installers, remodelers, and contractors running compatible 15 degree pneumatic coil nailers for wood siding or fiber-cement work.
• Why it stands out: The Type 304 stainless construction and annular ring shank make it more than just another coil nail. You get corrosion resistance plus stronger grip where movement and weather can work fasteners loose.
• Worth knowing: This is a 3,600-count collated pack, so it is best suited to production work. As with any collated fastener, confirm tool compatibility before you load up a case.

• What is this nail designed for? It is designed for fastening wood siding and is also identified as ideal for use in fiber-cement boards.
• What type of nailer does it work with? It is a 15 degree wire coil collated siding nail made for compatible pneumatic tools. Simpson Strong-Tie recommends confirming tool model compatibility with its Fastener Finder or compatibility matrix.
• Is this the Type 304 or Type 316 version? The S13A200SNC is the Type 304 stainless steel version.
• How many nails come in the package? This model is packed in a quantity of 3,600 nails.