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ASSY 4 Universal Screw Zinc Plated Countersunk 20mm Silver Wurth

BRAND: Wurth
SKU: 19013520
$69.50 List price: $87.40
1000 PCS ($0.07 per PCS)
+ −
30 Days Return Electricians Unlock Trade Access
Wurth ASSY Csmp Universal Screw Zinc Plated features 3.5mm, 20mm length and silver finish. Ideal power transmission thanks to RW recess.
Technical Specifications
  • Nominal diameter: 3.5 mm
  • Length: 20 mm
  • Thread length: 12 mm
  • Head type: Countersunk milling pocket head with milling pockets
  • Head diameter: 7 mm
  • Head height: 2.3 mm
  • Internal drive: RW20
  • Thread type: Wood screw thread, partial thread, coarse thread
  • Core diameter: 2.1 mm
  • Tip shape: Tip with hilltop milling cutter
  • Tip angle: 34 degrees
  • Material: Hardened steel
  • Surface: Zinc plated
  • Colour: Silver
  • Screw-in angle: 45-90 degrees
  • Suitable materials: Wood, derived timber products, softwood, board plywood, hardwood, LVL
  • Suitable machines: Würth BS 14-A Combi, Würth BS 12-A Power
  • RoHS-compliant: Yes
  • Dimensions (H x L x W): 2.3mm x 20mm x 7mm
  • Weight: 0.05 kg
Key Features
  • Universal partial-thread screw for fast, gap-free fastening of wood-wood connections
  • Ideal power transmission thanks to RW recess
  • Larger contact area at the bit for more power
  • One-handed working and precise positioning due to tight-fit recess
  • Compatibility with previous AW drive
  • Significant reduction in force required when screwing
  • Low gap effect due to displacement milling effect of the milling shank
  • Minimized risk of screw breakage due to high breaking torque
  • Reduced risk of injury from protruding metal chips
  • High protection of application tools
  • No over-tightening or stripping and high feed
  • Higher power transmission in hardwoods due to reinforced asymmetrical thread flank geometry
  • Better anchorage thanks to higher thread flanks
  • Smooth thread start ensures optimized recessing and biting
  • Friction-reduced thread rotation reduces screw-in force
  • High strength values and ductility with adjusted heat treatment
Professional Installation Requirements
  • Installation by professionals or skilled workers recommended to ensure proper fastening and safety.
Applications
  • Furniture construction
  • Interior fitting
  • Wood construction in indoor dry or sheltered areas
  • Universal wood-wood connections
Standards & Compliance
  • Complies with AS/NZS 4801 – Occupational Health & Safety Management Systems
Environmental Benefits
  • RoHS-compliant ensuring reduced hazardous substances
  • Durable and long-lasting fastening reduces need for replacements
Warranty Information

Warranty as per Wurth standard terms and conditions.

Available Now

Wurth ASSY® 4 CSMP universal partial-thread screws are available for immediate purchase, ideal for furniture and wood construction applications.

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