Number 10 by three inch epoxy coated deck screws are made specifically for the challenges of outdoor building in North America. Whether you are making a deck in the backyard putting up a fence for privacy or holding together wood in areas near the coast these screws give the protection from rust and the reliable performance that workers who do this for a living look for.
Inside is a C1022 carbon steel wire that is shaped into sizes by being cold forged. Then it is covered with a kind of coating made from a hard plastic material that can handle more than 1,500 hours of salt water testing. The tan color looks good with wood that's naturally brown wood that has been treated and man-made materials used for decks. This color helps the screws disappear into the wood so you do not see the metal part.
The T25 Torx shape is the way to turn these screws. It has six points that hold the screwdriver better than types. This means chance of the screwdriver slipping out compared to other shapes. This makes it easier and quicker to put the screws in. It also means broken heads on the job. The Type 17 point makes a hole by itself so you do not need to make a hole before putting the screw in most kinds of wood.
Each box has 310 screws. That is enough to put in about 50 to 60 feet of wood that is 5/4 inch thick when the pieces are 16 inches apart. The box has a lid that can be closed again and again. It comes with a T25 screwdriver bit, inside every box.
Technical Specifications
Property
Value
Material
C1022 Carbon Steel (Cold-Forged)
Surface Treatment
Thermoset Epoxy Polymer Coating
Coating Color
Tan (RAL 1019 custom match)
Coating Thickness
25–35 μm (ASTM D7091)
Salt Spray Resistance
≥1,500 hours (ASTM B117, Red Rust)
Drive System
T25 Torx / 6-Lobe Star Drive
Head Style
Flat Head, 82° Countersink Angle
Head Diameter
9.5 mm ±0.1 mm
Thread Type
Coarse Thread, 60° Profile (ASME B18.6.1)
Threads per Inch (TPI)
12 TPI
Point Type
Type 17 Slash Point (Self-Drilling)
Nominal Diameter
#10 / 4.83 mm
Length (Under Head)
3" / 76.2 mm ±0.3 mm
Shank Diameter
3.2 mm (Reduced Shank)
Tensile Strength
≥800 MPa
Core Hardness
HV 280–350
Surface Hardness
HV 450 min (Case Depth 0.05–0.18 mm)
Pull-Out Strength (SPF)
≥1,200 N (ASTM D1761)
Lateral Shear Strength
≥4.5 kN
Compliance
ACQ / CA-B / MCQ Compatible
Certifications
CE · SGS · RoHS · ISO 9001 · IATF 16949
Packaging
310 PCS / Reclosable Plastic Box
Included Accessory
1 × T25 Driver Bit per Box
Weight per Box
~0.85 kg (1.87 lbs)
Application
Deck Board Fastening
Secure 5/4" and 2" nominal deck boards to joists at 16" O.C. spacing. Tan finish blends with cedar, redwood, and pressure-treated pine.
Wood Fence Construction
Fix fence pickets to horizontal rails. Epoxy coating withstands constant ground-moisture exposure and sprinkler spray.
Pergola & Gazebo Assembly
Structural fastening of rafters, beams, and post connections where aesthetics matter. Flush countersunk head eliminates snag points.
Outdoor Furniture
Build benches, planters, and Adirondack chairs that resist seasonal humidity cycles without rust streaks.
Boardwalk & Dock Decking
Suitable for freshwater dock applications. 1,500-hour salt spray rating provides margin for humid, near-water environments.
Why Choose Fasto?
In a market flooded with commodity fasteners, Fasto stands apart through vertical integration, automotive-grade quality systems, and two decades of export expertise. Here is what that means for your business:
Consistency
Unlike trading companies that source from multiple sub-suppliers, Fasto controls 100% of production in-house. Your batch N+1 is identical to batch N — same wire lot, same coating line, same QC gates.
Coating Integrity
Our epoxy formulation is developed in partnership with a leading polymer chemistry lab. The coating is not just 'sprayed on' — it is electrostatically applied and thermally cross-linked for maximum adhesion and pore-free coverage.
Documentation
Every shipment includes: mill test certificate (MTC), salt spray report, dimensional inspection report, and certificate of origin. No exceptions.
Customization Ready
Need a specific color match for a composite decking brand? Custom head marking with your logo? Wax-lubricated coating for automated collation systems? Fasto's R&D team delivers.
Logistics Reliability
Dedicated export packaging: moisture-barrier inner bag + double-wall corrugated outer carton. FOB Shanghai/Ningbo. Consolidation and LCL options available for trial orders.
FAQ
Q1 Are epoxy coated deck screws better than stainless steel for outdoor decks?
For most decks that are not near the ocean, epoxy coated carbon steel screws are the best choice because they work well and do not cost too much money. The epoxy coating on these epoxy coated deck screws is very good at resisting rust. It can withstand salt spray for over 1,500 hours, which means these epoxy coated deck screws will not rust for 15 years or more in areas that're not near the ocean. If you live near the ocean you should use stainless steel screws because the air has a lot of salt in it. Epoxy coated deck screws are cheaper than steel screws. They cost 40 to 60 percent less than steel screws.
Q2 What size deck screws should I use for 5/4" deck boards?
For deck boards that're 5/4" thick you should use #10 x 3" screws. This size screw is what professionals use for deck boards. The screw is 3" long. It goes into the wood underneath the deck board least 1" which is important for making sure the screw does not come loose over time. If you have 2" deck boards you should use #10 x 3.5" screws or bigger. The #10 screw is a size because it is strong and does not make a big hole in the wood.
Q3 Will these screws rust or stain my pressure-treated wood deck?
No these epoxy coated deck screws will not stain your deck. The epoxy coating on the epoxy coated deck screws is safe to use with pressure-treated wood. It does not react with the chemicals in the pressure-treated wood so it will not make stains on the wood. The color of the epoxy coated deck screws is also chosen to match the color of the wood so if the epoxy coated deck screw gets scratched it will not be very noticeable.
Q4 Do I need to pre-drill holes before using these deck screws?
Most of the time you do not need to make a hole in the wood before you screw into it with epoxy coated deck screws. The point of the epoxy coated deck screw is special. It can make its hole in soft woods like pine or pressure-treated wood. If you are using hardwood or if you are screwing close to the edge of the wood you should make a hole first to avoid splitting the wood. The screwdriver you use is also important. It should be a T25 Torx driver, which's strong and will not slip out of the epoxy coated deck screw.
Q5 How do epoxy coated screws compare to ceramic coated deck screws?
Both kinds of deck screws have a coating that protects them from rust. They work in ways. Epoxy coated deck screws have a coating that keeps water and air away from the metal. Ceramic coated deck screws have a coating that uses chemicals to prevent rust. Epoxy coated deck screws are better at resisting salt spray. They can withstand over 1,500 hours of it while ceramic coated deck screws can only withstand 500 to 1,000 hours. Ceramic coated deck screws are good for high-temperature applications.
Q6 Can I use these screws with composite decking (Trex, TimberTech, Fiberon)?
Yes you can use epoxy coated deck screws with decking. They are compatible with all the brands of decking. The color of the epoxy coated deck screws is chosen to blend with the decking. If you have decking with grooves in it you should use the epoxy coated deck screws with the special clips that the manufacturer provides. If you are screwing directly into the decking the epoxy coated deck screw head will sit flat and will not make a mess.
Q7 What is the shear strength of a #10 deck screw?
The #10 x 3" epoxy coated deck screws are very strong. They can withstand a lot of force before they break. They have a shear strength of least 4.5 kN, which is about 1,012 pounds per square inch. If you need to know the strength of the epoxy coated deck screws for a building project you should look at the engineering tables in the National Design Specification for Wood Construction. In general a single #10 epoxy coated deck screw can support 200 to 250 pounds of weight.
Q8 What is the difference between Torx (T25) and Phillips drive for deck screws?
Torx drive is better than Phillips drive for epoxy coated deck screws. The Torx drive has a shape that fits into the epoxy coated deck screw head and provides a lot of torque without slipping. This means you can drive the epoxy coated deck screw in one motion without having to re-seat the bit. The Torx drive also makes the bit longer. Does not damage the epoxy coated deck screw head. Most professional deck builders use Torx drive because it is better, for epoxy coated deck screws.
