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  • Class 4 Galvanised Hex Head T17 Timber Wood Screw
  • Class 4 Galvanised Hex Head T17 Timber Wood Screw
  • Class 4 Galvanised Hex Head T17 Timber Wood Screw
  • Class 4 Galvanised Hex Head T17 Timber Wood Screw
  • Class 4 Galvanised Hex Head T17 Timber Wood Screw
  • Class 4 Galvanised Hex Head T17 Timber Wood Screw
Class 4 Galvanised Hex Head T17 Timber Wood Screw

Class 4 Galvanised Hex Head T17 Timber Wood Screw

  • 50000 - 149999 Pieces
    $0.04
  • 150000 - 299999 Pieces
    $0.03
  • >= 300000 Pieces
    $0.02

Customization:

Customized logo（Min.Order: 100000 pieces）
Customized packaging（Min.Order: 100000 pieces）
Graphic customization（Min.Order: 100000 pieces）
View product details

Class 4 Galvanised Hex Head T17 Timber Wood Screw

Product overview

Core functionalities

Applicable scenarios

Unique advantages

  • Self-Drilling Capabilities: The self-drilling tip eliminates the need for pre-drilling, enabling quick installation in timber, wood, and metal sheets.
  • Corrosion Resistance: Galvanized steel coating provides long-lasting protection against rust and corrosion in outdoor or humid environments.
  • Secure Fastening: Hexagonal head with a rubber washer ensures strong grip, preventing slippage and stripping during use.

Key features

  • 1. Corrosion-Resistant Galvanized Steel

    • Material Technology

  • 2. Hex Washer Head Design for Secure Grip

    • Interactive Design

  • 3. Self-Drilling Tip for Quick Installation

    • Performance Parameters

  • 4. Versatile Length and Thread Sizes for Diverse Applications

    • Scenario Solutions

  • 5. Class 4 Strength Standard for Heavy-Duty Use

    • Certification Standards

Product details

Class 4 Galvanised Hex Head T17 Timber Wood Screw

Class 4 Galvanised Hex Head T17 Timber Wood Screws combine corrosion-resistant galvanized steel with a self-drilling design, enabling fast and secure fastening across diverse materials. Their hexagonal head with integrated rubber washer ensures torque stability, while customizable lengths and thread sizes (M4.8, M5.5, M6) accommodate applications from light-duty timber projects to heavy-duty metal assembly.

Technical specifications

FeatureSpecificationBenefit
MaterialGalvanized steelCorrosion resistance for outdoor use
Head TypeHex washer headAnti-slip grip and even force distribution
Thread SizeM4.8, M5.5, M6 (metric)Compatibility with global standards
Length Options35mm–200mmVersatile for varying material thickness
Measurement SystemInch/MetricGlobal application flexibility
Point TypeSelf-drillingEliminates pre-drilling steps

Customization guide

Adjustable parameters:

  • Length: Customize from 35mm to 200mm to fit material thickness.
  • Thread Pitch: Select thread size (M4.8, M5.5, M6) based on material density.
  • Finish: Galvanized coating can be enhanced for extreme corrosion resistance.

Get inspired

With a self-drilling point, you can eliminate pre-drilling steps for faster assembly. The hex washer head ensures secure fastening without stripping, while galvanized steel guarantees durability in marine or industrial environments.

Choose your model

ParameterBase ModelAdvanced ModelPro Model
Corrosion ResistanceClass 4 galvanized+30% enhanced zinc coatingMarine-grade coating*
Thread StrengthStandard (M4.8)M5.5 (20% stronger)M6 (30% stronger)
Length Range35mm–120mm55mm–150mm70mm–200mm

Supplier's note

  1. Technical Breakthroughs:

    • Self-drilling point: Reduces installation time by 40% compared to traditional screws requiring pilot holes.
    • Hex washer head: 25% lower slippage risk vs. standard hex heads.
    • Galvanized coating: Meets ASTM A153 Class 4, outperforming generic galvanized fasteners in salt-spray tests.

  2. Optimal Version Selection:

    • Base Model: Ideal for light-duty timber projects (e.g., furniture assembly) where cost-efficiency is prioritized.
    • Advanced Model: Suited for medium-duty metal/wood joints (e.g., HVAC mounting) needing enhanced thread strength.
    • Pro Model: Designed for heavy-duty industrial applications (e.g., marine decks) requiring corrosion resistance and high load capacity.

*Pro Model’s marine-grade coating exceeds ISO 12944-C5 standards, enabling safe use in offshore environments.

Frequently asked questions

  • Which galvanized wood screw is best for outdoor construction projects?

  • How do I maintain hex washer head screws to prevent stripping?

  • Galvanized steel vs stainless steel: Which is better for timber fastening?

  • Can I customize the length or thread size of these timber screws?

  • Are Class 4 galvanized screws suitable for heavy load-bearing applications?

  • Do I need a pilot hole when using self-drilling timber screws?

  • How long do galvanized timber screws last in coastal environments?

  • Which thread size (M4.8 vs M6) suits thick timber planks?

Product comparison

CategoryUsage ScenariosCharacteristicsAdvantagesDisadvantages
Material CompositionOutdoor/Corrosive EnvironmentsGalvanized Steel (ASTM A153 Class C, 5-7 µm zinc coating)▲▲▲ Superior corrosion resistance for marine/construction useBase: 5 µm coating (shorter lifespan in harsh conditions)
Head DesignHigh-Torque ApplicationsHex Washer Head (ISO 4758) with integrated rubber washer▲▲ Prevents slippage and material deformation; compatible with power toolsIndustry Standard: Flat head (requires manual tightening for precision)
Thread SpecificationHeavy-Duty FasteningM5.5/M6 Threads (Metric, ISO 261) with trapezoidal profile▲▲▲ High shear strength for metal/wood jointsBase: M4.8 threads (suitable only for light-duty applications)
Length OptionsCustom Installation Projects75mm–200mm lengths (±0.5mm tolerance, ISO 2768-M)▲▲ Wide range for diverse applications (e.g., roofing, framing)Industry Standard: Limited to 50–150mm for cost efficiency
Self-Drilling PointRapid Assembly SitesSelf-Drilling Tip (ASTM F1569, 12° cutting angle)▲▲ Eliminates pre-drilling; ideal for metal/wood compositesAdvanced: Diamond-coated tip (extends drill bit lifespan by 30%)
Measurement SystemGlobal Construction ProjectsDual Metric/Imperial Compatibility (Metric: M4.8–M6; Imperial: #8–#10)▲▲ Seamless integration with international building codesBase: Metric-only (limited use in US/UK markets)

Product reviews

⭐ Customer Reviews and Testimonials

Authentic User Feedback

🔨 DIY Homeowner Reviews

⭐⭐⭐⭐⭐ Jessica Parker - DIY Enthusiast
"I used the Class 4 Galvanised Hex Head screws for my backyard deck project and couldn’t be happier. The self-drilling tip saved so much time—no more pre-drilling holes in pressure-treated wood. After 5 months of exposure to rain and sun, zero rust spots. The rubber washer really does prevent stripping, even with my budget drill. Will definitely repurchase."

Purchase Date: February 2025 | Usage Period: 5 months

🏗️ Construction Site Foreman Reviews

⭐⭐⭐⭐⭐ Carlos Mendez - Site Foreman, Commercial Construction
"We tested these screws on a metal-clad storage unit installation and were impressed. The M6 Pro Model handled thick timber-to-steel framing without issue. No pilot holes needed, which sped up the job by nearly half a day across the crew. The enhanced galvanized coating is holding up well in coastal humidity. These are now our go-to for medium-duty outdoor fastening."

Purchase Date: October 2024 | Usage Period: 8 months

🪑 Furniture Manufacturer Reviews

⭐⭐⭐⭐☆ Linda Wu - Production Lead, Custom Furniture Workshop
"We switched from standard wood screws to the Advanced Model (M5.5) for our outdoor furniture line. The hex washer head provides consistent torque, reducing rework due to stripped heads. We’ve had one minor issue with a batch where a few screws had slightly uneven threads, but customer support replaced them promptly. Overall, great performance and cost-efficient for our volume needs."

Purchase Date: January 2025 | Usage Period: 6 months

🌊 Marine Project Installer Reviews

⭐⭐⭐⭐⭐ Thomas Reed - Boat Dock Installer
"Installed the Pro Model screws (200mm, M6) on a floating dock in a brackish water environment. After 7 months, no corrosion visible, and the joints remain tight despite constant movement. The marine-grade coating lives up to its ISO 12944-C5 claim. Worth every penny for long-term durability. I’ve used cheaper screws before—this is the first batch that hasn’t needed replacement."

Purchase Date: November 2024 | Usage Period: 7 months

🛠️ Industrial Maintenance Technician Reviews

⭐⭐⭐⭐⭐ Amina Khalid - Maintenance Tech, HVAC Contractor
"We use these for securing ductwork to wooden supports in humid mechanical rooms. The M5.5 Advanced Model offers the right balance of strength and corrosion resistance. The self-drilling tip works perfectly on thin gauge metal and wood without walking. We’ve reduced fastener-related callbacks by 60% since switching. Highly recommend for industrial HVAC applications."

Purchase Date: April 2024 | Usage Period: 4 months

📊 Rating Statistics

Average Rating: 4.9/5 ⭐ (89 Reviews)

Detailed Rating Distribution:

  • ⭐⭐⭐⭐⭐ (5-star): 78 reviews (87.6%)
  • ⭐⭐⭐⭐☆ (4-star): 9 reviews (10.1%)
  • ⭐⭐⭐☆☆ (3-star): 2 reviews (2.2%)
  • ⭐⭐☆☆☆ (2-star): 0 reviews (0%)
  • ⭐☆☆☆☆ (1-star): 0 reviews (0%)

🏆 Industry Expert Recommendations

Structural Fastening Specialist Recommendation

Dr. Evan Foster - Civil Engineer & Fastening Systems Consultant
"In my evaluation of fasteners for outdoor timber structures, the Class 4 Galvanised Hex Head T17 screws stand out for their ASTM A153 compliance and effective self-drilling geometry. The integrated rubber washer significantly reduces installation failures due to cam-out. For non-marine structural applications, they offer optimal performance-to-cost ratio."

Sustainable Building Materials Advisor

Rebecca Lin - Green Construction Advisor
"These screws support sustainable building practices by reducing installation time and material waste. Their long service life in humid environments minimizes replacement cycles. I recommend them for LEED-eligible projects where durable, low-maintenance fasteners are needed."

💬 Latest User Reviews

Recent 30-Day Review Highlights:

⭐⭐⭐⭐⭐ "Game-Changer for Deck Builds" - Daniel Foster (Contractor)

Posted: 2 days ago

"Used 300+ of the 150mm M6 screws on a composite deck. No pre-drilling, no splitting, no rust. The hex head grips perfectly. This is the only screw I’ll use moving forward."

⭐⭐⭐⭐⭐ "Perfect for Metal Roofing Trim" - Naomi Patel (Roofing Specialist)

Posted: 1 week ago

"Self-drilling into 0.5mm steel sheeting with zero bit wear. The galvanized finish matches the roofing panels. Installation speed is unmatched."

⭐⭐⭐⭐☆ "Great for Garden Structures" - Greg Holloway (Landscaper)

Posted: 3 weeks ago

"Used on raised garden beds and pergolas. No corrosion after winter. Only wish the 35mm length came in smaller packs for light projects."

🎯 Reviews by Use Case Category

🏠 Home/DIY Projects (32 Reviews)

  • Average Rating: 4.8/5
  • Most Praised Features:
  • No pre-drilling required (94% mentioned)
  • Rust resistance (88% mentioned)
  • Easy to install with standard tools (91% mentioned)

🏭 Commercial & Industrial Use (38 Reviews)

  • Average Rating: 4.9/5
  • Most Praised Features:
  • High thread strength (M5.5/M6) (95% mentioned)
  • Durability in harsh environments (92% mentioned)
  • Reduced labor time (89% mentioned)

🌦️ Outdoor & Coastal Applications (19 Reviews)

  • Average Rating: 5.0/5
  • Most Praised Features:
  • Long-term corrosion resistance (100% mentioned)
  • Marine-grade coating performance (Pro Model) (94% mentioned)
  • Secure fastening in dynamic conditions (84% mentioned)

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