#10 x 3 in 316 Stainless Steel Screws (1500 Pack) - Marine Grade

In this review of the #10 x 3 in 316 Stainless Steel Screws, the bottom line is simple: these fasteners are for builders and homeowners who need long-lasting corrosion resistance in coastal or wet environments. Our review finds the standout reason to buy is the use of genuine 316 marine grade stainless steel, which prevents rust streaks on exterior timber and gives long-term durability for decking, docks, and other outdoor woodwork.

Key Features

• 316 Marine Grade Stainless Steel: Offers superior corrosion resistance so timber projects remain free of rust streaks and staining over time.
• Coastal and Wet Application Ready: Recommended for docks, jetties, boat building, and saltwater-exposed structures where ordinary screws fail.
• Versatile with All Wood Types: Cuts cleanly in hardwoods, softwoods, and pressure treated lumber, making them suitable for decking, fencing and framing.
• Type 17 Point with Star Torx Drive: Sharp point helps reduce splitting while the T25 star drive reduces cam-out and head stripping during installation.
• Includes Driver Bits: The pack ships with two star Torx drivers, so you can start work without sourcing a compatible bit.
• Burnished Finish: Clean shiny look that improves the visual appearance of finished outdoor timber projects.

Who It's For

These screws are aimed at contractors, deck builders, and homeowners doing coastal or high-moisture exterior projects who need hardware that resists corrosion and lasts for years. If you work on docks, boat structures, or exposed decking in salt-air climates, the 316 stainless composition is a practical choice.

Customers who want self-drilling performance or metal-to-metal fastening should look elsewhere, because these are not self-drilling screws and the manufacturer recommends pilot holes for best results; they excel as wood screws rather than for sheet metal or heavy gauge steel applications.

Pros & Cons

Pros

• High corrosion resistance from true 316 stainless steel improves longevity in saltwater environments.
• T25 star drive and included driver bits reduce cam-out and make installation smoother.
• Sharp Type 17 point and burnished finish provide clean entry and a professional look on timber.
• Suitable for a wide range of wood types, including pressure treated lumber and cedar.

Cons

• Not self-drilling; pilot holes are recommended and some customers reported occasional screw breakage during heavy installation.
• Large bulk pack size may be excessive for very small DIY jobs.

Specifications

Size	#10 x 3 in
Material	316 Marine Grade Stainless Steel
Drive Type	T25 Star Torx
Point Type	Type 17 sharp point
Finish	Burnished
Pack Quantity	1500 pieces
Includes	Two star Torx driver bits

Our Verdict

For coastal construction and any exterior woodwork where longevity and appearance matter, these #10 x 3 in screws are a solid value due to the use of 316 stainless steel and a thoughtful drive design. They are a good choice for professional builders and serious DIYers, but remember they are not self-drilling and pilot holes will improve outcomes.

Frequently Asked Questions

Are these suitable for pressure treated lumber?
Yes. The 316 stainless composition makes them appropriate for pressure treated lumber, hardwoods, and softwoods without staining.

Do these screws come with driver bits?
Yes. The pack includes two T25 star Torx driver bits to reduce cam-out during installation.

Do they require pilot holes?
They are not self-drilling; pilot holes are recommended to prevent splitting and reduce the risk of breakage during heavy installation.