Konnect Fastening Systems is the exclusive distributor of Greenkote® Tension Control Bolts in New Zealand and Australia.

The last time Arnie Glausiusz visited New Zealand was 2019. Since then, we have supplied into over 15 iconic projects throughout New Zealand including NZICC, Westfield Newmarket, Holiday Inn Frankton, Dunedin Public hospital, Christchurch Hospital and IKEA. 

For this trip we presented to a mix of structural engineers, fabricators and universities. The presentation consisted of a live demonstration supported by PowerPoint. 

The first presentation was to the Konnect Fastening Systems internal sales team before visiting the consultant engineering firms. A mixed presentation was delivered after the conclusion of the SCNZ conference in the Wynyard quarter. This was attended by fabricators and engineers leading to engaging questions from different viewpoints. The trip concluded with visits in Christchurch. 

Key points explored in the presentation were:

·        Fast Installation

·         Product Range

·         Health & Safety 

·         Wrenches

·         Greenkote® Corrosion Protection

·         EN14399-10 / System HRC

·         Paint

·         TCB Advantages 

Installation

TC bolts are installed using a specialized shear wrench referred to as a “dumb tool” as it does not require calibration. The wrench holds the TCB by its twelve-point metric spline in the inner socket while the outer socket rotates the nut. This means that there is no torque put into the shank of the bolt only. When the correct tension is reached, the inner socket counter rotates and shears the spline off. The process is simple, fast and results in correct tensioning every time. Quality Control is greatly simplified as spline removal indicates correct tension.     

Product Range

Greenkote® TCB Standard

Greenkote® TCB countersunk

Weathering Steel TCB

Greenkote® Tubolt

Health & Safety 

TC Bolts have many health and safety benefits compared to standard hex bolts including the tools being low noise (less than 85db), lightweight and eliminating the risk of hand-arm vibration syndrome as the tools are non-impacting. 

Wrenches

Variety of wrenches in different shapes and sizes for different situations. There is a 90-degree corner wrench for tight spaces. 

 

Corrosion Protection

Greenkote® is a thermo-chemical surface modification which gives a highly uniform, conformal coating that gives exceptional protection against corrosion as well as enhanced durability and other performance advantages. The natural micro-roughness of the Greenkote® surface gives it superior adhesion qualities for topcoats or paints.

EN14399-10 / System HRC

TCBs are system HRC which stands for High Resistance Calibrated. The European standard is EN 14399 part 10. The 2016 revision of the AS 1252 standard has included the use of EN 14399 - the Structural Bolt assemblies that are manufactured to EN 14399 comply to the requirement of AS 1252:2016.

TCB Advantages 

Key advantages of TC Bolts are:

  • Guaranteed Tension. The spline end shears off when the correct tension is reached, providing instant, visual proof of proper installation, eliminating guesswork and operator error
  • Fast & Easy Installation: Single-person operation with lightweight electric shear wrenches makes installation quick and reduces labour time and cost
  • Enhanced Safety: Consistent, high preload ensures better load distribution and prevents loosening from vibration, increasing structural integrity
  • High Reliability: Designed for long-term performance, they maintain tension over time, reducing maintenance needs
  • Improved Productivity more Economical: Single-person installation, lower labour costs, faster installation, and fewer errors make them cost-effective
  • Versatile Applications: Ideal for bridges, stadiums, complex commercial buildings, wind turbines, rail, and heavy industrial structures
  • The dome head has a bigger bearing surface against the steel – it is an easier surface to accept paint rather than the corners of a hexagon head

If you would like a demonstration, please reach out and we will be happy to come to your site.