Long wood insert without hex / long screw-in insert nut for structural timber connections

Overview – Industrial long screw-in inserts for B2B timber construction

Our long wood insert or long screw-in insert nut without internal hex is a professional metal threaded insert with CE marking CE1034 according to ETA 12/0481. It provides a strong, reusable metric internal thread in wood for high load applications, prefabricated timber structures and industrial B2B projects. The pilot section ensures accurate positioning and reliable mechanical anchoring in solid wood, OSB, MDF and sandwich panels.

Description

Technical specifications – dimensions, thread types, tolerances and materials

• Internal thread M5 to M16 – compatible with standard metric bolts (6H tolerance) and industrial fasteners.
• Lengths up to 100 mm – adapted to various timber thicknesses and structural load requirements.
• CE certification CE1034 – ETA 12/0481 – validated performance for structural timber construction.
• Materials and corrosion protection – standard white zinc-plated steel; stainless steel versions available on request for humid or outdoor environments.
• Installation tools type 610 / 620 – manual or mechanical installation ensuring repeatable accuracy and reduced assembly errors.
• Pilot section without external thread – improves centering and minimizes the risk of misalignment during installation.

Benefits for industrial assembly – strength, reliability and serviceability

The long wood insert laks an internal hexagon but provides a reusable internal thread, significantly increasing pull-out resistance and torque capacity compared with direct wood screws. This enables easy disassembly, maintenance and component replacement in serial production and prefabricated construction environments. The combination of metric threading and CE approval makes this insert ideal for B2B timber connections in furniture manufacturing, façade systems, pergola construction, stair building and structural beam connections.

Application areas – timber construction, sandwich panels and prefabrication

• Structural timber joints and beam connections
• Façade systems, pergolas and architectural timber assemblies
• Sandwich panels and wood-to-metal interfaces
• Industrial production environments requiring durable and removable threads

Installation guidelines – preparation and best practices

1. Pre-drilling according to the recommended hole diameter and depth.

2. Insertion and screw-in installation using the appropriate tool (type 610 / 620) for accurate alignment.

3. Final alignment check to ensure flush seating and optimal mechanical performance.

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