Trade Discount 20%
ASSY® 4 COMBI Timber Screw | Hexagon Head | Zinc Plated | Partial Thread | @Pack of 75 | by Wurth
ASSY® 4 COMBI timber screws are designed for robust wood fastening, featuring a hexagon head and durable zinc plating. Ideal for structural woodwork and timber panel construction, these screws ensure high power transmission and reduced splitting, making them perfect for professional tradespeople. With a reinforced thread design, they provide stability and minimize the risk of screw breakage.
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Product Name/Title: ASSY® 4 COMBI Timber Screw | Hexagon Head | Zinc Plated | Partial Thread | @Pack of 75 | by Wurth
Brand: Wurth
SKU: 158780140
Alternatively Known As: Timber screws, Wood screws, Hex head screws, Zinc plated wood screws, Partial thread screws
Technical Specifications
- Nominal diameter: 8 mm
- Length: 140 mm
- Head type: Hexagon head
- Head height: 4.5 mm
- External drive: WS12
- Internal drive: RW40
- Thread type: Wood screw thread
- Thread design: Partial thread
- Design: With shaft
- Thread form: Coarse thread
- Thread length: 80 mm
- Material: Hardened steel
- Surface: Zinc plated
- Suitable materials: Wood, Derived timber product, Softwood, Board plywood (BSP), Hardwood, LVL
- Core diameter: 5.3 mm
- Tip shape: Tip with hilltop milling cutter
- Tip angle: 34 degrees
- Max screw-in angle: 90 degrees
- Min screw-in angle: 0 degrees
- RoHS-compliant: Yes
- Approval: ETA-11/0190
- Dimensions (H x L x W): 4.5mm x 140mm x 8mm
- Weight: 0.15 kg
Key Features
- Powerful partial-thread screw with shank reinforcement for wood-wood fastening with washer or precise 90° metal-wood fastening
- Ideal power transmission thanks to RW drive
- Larger contact area at the bit for more power
- Tight-fit recess and perfect bit fit for stability, one-handed working, and precise positioning
- Compatibility with previous AW drive
- Combination of hexagon and RW drive reduces force required when fastening
- Displacement milling effect of the milling shank reduces splitting
- High breaking torque minimizes risk of screw breakage
- Integration of milling shank into thread reduces risk of injury from metal chips
- High protection of application tools, no over-tightening or stripping
- Reinforced, asymmetrical thread flank geometry for higher power transmission in hardwoods
- Smooth thread start ensures optimized recessing and biting
- Dome-shaped milling elements reduce splitting effect
Professional Installation Requirements
- Professional installation by a qualified tradesperson is recommended to ensure correct fastening and structural integrity.
Applications
- Element construction
- Timber panel construction
- Structural woodwork
- Metal wood connections
- Indoor dry or sheltered wood construction areas
Standards & Compliance
- AS/NZS 1170 – Structural Design Actions (Wind, Earthquake, Snow Loads)
Environmental Benefits
- RoHS-compliant ensuring reduced hazardous substances
- Durable zinc plating extends product life reducing waste
Warranty Information
Wurth offers standard manufacturer warranty covering defects in materials and workmanship.
Available Now
Wurth ASSY® 4 COMBI timber screws are available for immediate purchase, ideal for timber and structural wood fastening applications.
