Stainless Steel Brad Nail Factory | Sinsun 304 & 316 Marine Grade Brads
Sinsun Factory Stainless Steel Brad Nails – rust-resistant, precision-crafted finish nails for trim, baseboard, molding & more. Factory-direct pricing for 16/15 gauge, white/black, galvanized & ring shank variants worldwide.
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A quiet, stable floor is the mark of quality craftsmanship. Traditional nails or generic screws are the leading cause of common, frustrating floor failures:
Squeaks & Movement: Insufficient holding power allows boards to rub against subfloor or each other.
Gaps & Separation: Seasonal wood expansion and contraction pull fasteners loose.
Subfloor Damage: Poor screw design can strip or damage plywood or OSB subflooring.
Surface Damage: Improper heads or installation can damage delicate board surfaces.
Sinsun Solution: Engineered for Permanent Stability
Our screws are specifically designed to anchor floorboards securely from below (blind nailing) or through the surface, creating a monolithic, stable structure.
| Category | Search Term | Best For |
| 304 Stainless Brads | 304 stainless steel brad nails | Exterior trim, doors, windows, general outdoor use |
| 316 Marine Grade | 316 stainless steel brad nails | Coastal construction, saltwater exposure, marine projects |
| 2 Inch Length | 2 inch stainless steel brad nails | Thick trim, deck railings, heavy exterior moldings |
| 1-1/2 Inch Length | 1 1 2 stainless steel brad nails | Standard trim, siding, general exterior fastening |
| Cedar Siding Brads | stainless steel brad nails for cedar | Cedar siding, redwood, and other tannin-rich woods |
| Size (Length) | Gauge | Material | Point Type | Collation | Head Type | Common Search |
| 5/8" (16mm) | 18 | 304 / 316 | Chisel | Adhesive Tape | Micro Head | — |
| 3/4" (19mm) | 18 | 304 / 316 | Chisel | Adhesive Tape | Micro Head | — |
| 1" (25mm) | 18 | 304 / 316 | Chisel | Adhesive Tape | Micro Head | — |
| 1-1/4" (32mm) | 18 | 304 / 316 | Chisel | Adhesive Tape | Micro Head | — |
| 1-1/2" (38mm) | 18 | 304 / 316 | Chisel | Adhesive Tape | Micro Head | 1 1 2 stainless steel brad nails |
| 2" (50mm) | 18 | 304 / 316 | Chisel | Adhesive Tape | Micro Head | 2 inch stainless steel brad nails |
Wire Diameter:
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1.25mm (0.049 inches) consistent across all lengths.
Material Grade:
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304 (18-8) or 316 (marine grade with molybdenum).
Tensile Strength:
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700-800 MPa for 304; 750-850 MPa for 316.
Corrosion Resistance:
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Passivated surface for maximum durability.
Collation:
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Precision adhesive tape, straight strip.
Head Style:
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Small flush head (easy to conceal with putty/paint).
Shank Type:
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Smooth (standard) & Ring Shank (textured for extra grip).
Point Style:
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Chisel point (sharp, minimizes wood splitting).
Main Applications of stainless brad nails
Trim and siding on the outside
This is when stainless steel brad nails really shine. Regular nails will rust over time when you put up cedar siding, redwood trim, or any other woodwork on the outside of your home. Cedar and redwood tannins speed up rusting, which causes those ugly black streaks that make a beautiful home look unattractive. This type of corrosion does not affect SinSun's 304 stainless brads at all. Our 316 marine grade gives homes near the ocean, like those on New Zealand's coast or in the Mediterranean, the extra protection they need against salt spray and humid air.
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Built on the coast and in the sea
Builders in Norway and Australia have told me that our 316 steel brads are the ideal choice for constructing docks and beachfront homes. Saltwater damages fasteners. Regular galvanized nails might last for a season or two, but they eventually break. Molybdenum makes 316 stainless steel brad nails more resistant to chloride corrosion. When building a deck that looks out over the ocean or a boat dock that stays in the water all year long, you need marine-grade stainless steel.
Contact usProjects with cedar and redwood
When working with cedar or redwood, you need to be extra careful. These woods are beautiful on their own, but they are also acidic and react with metals. For any project that uses these woods, stainless steel brad nails are the most suitable choice. Sinsun's stainless brads will keep your fasteners from changing the color of the wood. This is whether you're building a cedar fence, redwood siding, or making a custom pergola. The small head sinks down and disappears, letting the wood's natural beauty speak for itself.
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Furniture and structures for the garden and outside
Stainless steel finishing nails are both durable and good-looking for craftsmen making outdoor furniture, planters, or garden trellises. Sinsun's 304 stainless brads stay strong in the rain, snow, and sun without leaving rust stains on the wood. Also, the 18-gauge size is thin enough to keep delicate hardwood slats from splitting, but strong enough to last for years outside.
Contact usWhat's the difference between 304 stainless steel and 316 stainless steel brads?
The environment you live in will help you decide between 304 and 316 stainless steel. Here's what I advise my customers:
How to Get the Most Out of Stainless Brads: An Installation Guide
Stainless steel brads don't work like regular steel nails. Here are some tips from years of shop work:
Set the correct air pressure. Stainless steel brads are softer than hardened steel brads, but they are also stronger when pulled. For most uses, set your compressor to 80 to 90 PSI. When you apply too much pressure on the brad, it bends in dense hardwoods.
Make sure your nailer is clean. Stainless brads are smooth, but can sometimes feel a bit "grippy" in the magazine. A clean magazine with no dirt makes feeding smooth.
Step 3
Try it out on scrap paper first. If you're working with very dense tropical hardwoods like mahogany or ipe, try a few brads on a scrap piece. This will help you achieve the right depth and pressure.
Step 4
Keep things in the right place. Stainless steel doesn't rust, but moisture can still affect adhesive tape collation. Put boxes in a dry place. Bring only what you need for the day if you have to work in the rain.
Real Customer Feedback
The UV and coastal conditions in New Zealand are some of the most dangerous in the world. I use Shinsun 304 stainless brads for all of my cedar siding work. No bleeding. No lines. My clients like that the wood looks natural. Also, the brads pass through my Paslode without getting stuck, which is not the case with some other steel brands I've tried.
“use reclaimed chestnuts and oak to make furniture for the outdoors. Rust stains would ruin the wood's look. I always use Samsung's 1-1/2-inch stainless brads. They drive clean, the heads sink flush, and I never worry about rust. "The small things make a piece last for generations."
Frequently Asked Questions (FAQ)
What are the differences between 304 and 316 stainless steel brad nails?
304 stainless steel is suitable for siding, trim, windows, and doors on the outside of a building. 316 stainless steel has molybdenum in it, which makes it more resistant to corrosion from saltwater and chloride. If you're working on the coast, in the ocean, or anywhere near treated wood, choose 316.
Why do I need stainless steel brad nails for cedar?
Cedar has natural acids and tannins that speed up steel rusting and even galvanized nails. This reaction doesn't happen with stainless steel, so it stops the black streaks and rust stains that can make cedar siding or decking look unattractive.
Can stainless steel brad nails be used in a brad nailer?
Yes. Sinsun stainless brads work with all major brad nailer brands, such as Paslode, Makita, DeWalt, and Bostitch. They use standard adhesive tapes as a collation method. No special tools are needed.
Are stainless steel brad nails strong enough to apply on trim outside?
Yes, of course. 18 Gauge stainless brads hold trim, siding, and most other things on the outside. The strength comes from stainless steel's ability to stretch, not just its thickness.
Are Sinn brads 2 inches long?
Yes. People like to use our 2-inch stainless steel brad nails for thicker trim, door casings, and heavy molding on the outside of their homes. We have both 304 and 316 grades in 2-inch lengths.
Can I get a certain grade or length?
Yes, of course. We support OEM customization as a factory. We can make it for a certain length, coating, or grade of stainless steel. Get in touch with us and let us know what you need so we can quote you.
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