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ASSY® 4 PH Fittings Screw | Zinc Plated | Partial Thread Pan Head | 100 PCS | by Wurth
ASSY® 4 PH fittings screws are designed for universal fastening in timber construction and structural woodwork. Featuring a visually appealing zinc plated pan head and a partial thread design, these screws ensure optimal power transmission and stability. Ideal for both metal and wood applications, they provide a reliable solution for various construction needs.
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Product Name/Title: ASSY® 4 PH Fittings Screw | Zinc Plated | Partial Thread Pan Head | 100 PCS | by Wurth
Brand: Wurth
SKU: 153860090
Alternatively Known As: ASSY 4 PH screws, partial thread pan head screws, zinc plated wood screws, RW drive screws, Wurth wood screws
Technical Specifications
- Nominal diameter: 6 mm
- Length: 90 mm
- Head type: Pan head
- Head diameter: 12 mm
- Head height: 4 mm
- Internal drive: RW40
- Thread type: Wood screw thread
- Thread design: Partial thread
- Thread form: Coarse thread
- Thread length: 50 mm
- Core diameter: 3.9 mm
- Tip shape: Tip with hilltop milling cutter
- Tip angle: 34 degrees
- Material: Hardened steel
- Surface finish: Zinc plated
- Colour: Silver
- Max screw-in angle: 90 degrees
- Min screw-in angle: 0 degrees
- Product weight per item: 13 g
- Suitable materials: Wood, derived timber products, softwood, plywood, hardwood, LVL
- Area of application: Universal, timber construction, structural woodwork, timber panel construction, element construction, metal plate, wood, roof
- Approval: ETA-11/0190
- RoHS-compliant: Yes
- Dimensions (H x L x W): 4mm x 90mm x 12mm
- Weight: 0.013 kg
Key Features
- Partial-thread screw with visually appealing pan head
- Ideal power transmission due to RW drive with larger contact area
- More stability and precise positioning with tight-fit recess
- Compatibility with previous AW drive
- Flat fastening for metal sheets for secondary purposes
- Flat, cylindrical pan head rounded with a lens for large surface contact
- No over-tightening or stripping with high feed
- Reinforced asymmetrical thread flank geometry for higher power transmission in hardwoods
- Better anchoring with higher thread flanks
- Smooth thread start for optimized recessing and biting
- Reduced splitting effect due to dome-shaped milling elements in the tip
- Friction-reduced thread rotation lowers screw-in force
Professional Installation Requirements
- Professional installation recommended for structural applications to ensure compliance with building codes and safety standards.
Applications
- Universal fastening for metal or plastic hollow profiles
- Timber construction and structural woodwork
- Timber panel and element construction
- Metal plate and wood fastening
- Roof construction
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
Warranty as per Wurth standard terms and conditions.
Available Now
Wurth ASSY® 4 PH partial thread pan head screws are available for immediate purchase, ideal for timber and metal fastening in construction and structural woodwork.
