🟡 300Pcs Yellow Deck Screws 4 Inch – #10 x 4" Galvanized Wood Screws, Torx/Star Drive, Self Tapping, Includes 2 T25 Bits
🏷️ Brand: HomeDIYer | #10 x 4" | Torx Star Drive | Yellow Finish | 300-Piece Kit + 2 Bits
📌 Overview — Everything you need to build a deck, fence, or outdoor structure – all in one box. Tired of stripped screws and rusted fasteners? Our 300-piece yellow deck screw kit includes #10 x 4" self-tapping screws with a corrosion-resistant galvanized yellow finish, plus two T25 star bits (50mm and 100mm long) for immediate use. The Torx/Star drive eliminates cam-out and stripping, delivering consistent torque for a professional finish. The sharp self-tapping point works in wood, composite, plastic, and even thin metal – no pre-drilling required for most materials. Ideal for decking, fencing, railing, and outdoor furniture. With 300 screws and two bits, you'll have plenty for large projects and spare bits for your drill or impact driver.
✨ Key Features – Yellow Galvanized Deck Screws
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Torx/Star Drive (T25) – Prevents stripping and cam-out, ensuring secure, slip-free fastening. Two T25 star bits (50mm & 100mm) included.
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Yellow Galvanized Finish – Provides excellent corrosion resistance for outdoor applications. Works with pressure-treated lumber and resists moisture.
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Self-Tapping Sharp Point – Cuts its own path into wood, plastic, and thin metal – no pre-drilling required in most materials.
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Partially Threaded Design – Smooth upper shank pulls boards tight without jacking; threads near the tip provide a strong grip.
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#10 x 4" Size – Ideal for 2x lumber, deck boards, and fence pickets. The 4" length provides deep penetration for secure holding.
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High-Quality Carbon Steel – Strong and durable, resists bending or breaking under driving torque.
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300-Piece Bulk Kit + 2 Bits – Generous quantity for large projects, plus spare bits so you never have to search for the right driver.
📏 Technical Specifications
| Specification |
Details |
| Fastener Size |
#10 x 4 inches (4.8mm x 101.6mm) |
| Thread Size |
#10 (4.8mm) |
| Length |
4 inches (101.6mm) |
| Drive Type |
Torx / Star (T25) |
| Head Style |
Flat / Countersunk |
| Material |
Carbon Steel |
| Finish / Coating |
Yellow Galvanized (Corrosion-resistant) |
| Thread Coverage |
Partially threaded (smooth upper shank) |
| Self-Tapping |
Yes – sharp point |
| Quantity |
300 screws |
| Included Bits |
2pcs T25 Star Bits (50mm & 100mm lengths) |
💡 Installation tip: Use the included T25 bits with an impact driver or drill. For softwoods and pressure-treated lumber, no pre-drilling is needed. For dense hardwoods (oak, ipe), pre-drill a pilot hole to prevent splitting. These screws also work well in plastic and thin sheet metal.
🛡️ Yellow galvanized finish: This coating provides good corrosion resistance for exterior use, including contact with treated lumber. For coastal saltwater environments, consider stainless steel screws, but for decks, fences, and general outdoor projects, this finish performs reliably.
❓ Frequently Asked Questions – Yellow Deck Screws
Do I need to pre-drill before using these screws?
🔧 For most softwoods (pine, cedar, fir) and pressure-treated lumber, no pre-drilling is required – the self-tapping tip cuts its own path. For dense hardwoods (oak, hickory, ipe) or when screwing near the edge of a board, we recommend pre-drilling a pilot hole about 75% of the screw diameter to prevent splitting.
Are the T25 Torx bits included? What sizes?
✅ Yes. The kit includes two T25 star bits: one 50mm (about 2 inches) and one 100mm (about 4 inches). The longer bit helps reach recessed screws or work in tight spaces. Both bits fit standard impact drivers and drills.
Will the yellow galvanized coating rust outdoors?
🌧️ The yellow galvanized finish provides good corrosion resistance for exterior use, including decks, fences, and garden structures. It is suitable for contact with pressure-treated lumber. Over many years of direct weather exposure, some surface oxidation may occur, but the coating significantly outlasts plain steel or light zinc plating. For harsh coastal environments, consider stainless steel fasteners.
Can I use these screws for materials other than wood?
🛠️ Yes. The self-tapping point works well in thin sheet metal (up to 1/8"), plastic, composite decking, and even fiberglass. For metal, we recommend pre-drilling a slightly smaller hole to avoid cracking the material. These are versatile fasteners for many DIY and construction tasks.
What is the advantage of partially threaded screws?
📐 The smooth upper shank (unthreaded portion) allows the screw to pull two boards tightly together without the threads grabbing the top board – this prevents "jacking" (a gap between boards). The threads near the tip provide a strong grip on the bottom board. This design is standard for decking screws and ensures a flush, professional finish.
⚙️ HomeDIYer — Quality deck fasteners with bits included. Order your 300-piece kit today and build your outdoor project with confidence.