After achieving ETA Option 1 (ETA – 14/0374) in 2014, Joker points out it is continually extending its certification to cover more head types. Currently, Joker is hoping its high-quality bi-metal concrete screws will achieve an ETA before the end of 2022.
In terms of structural design, the carbon steel portion – combined with the fore-end cutting edges and exclusive patented 3-circle hi-low thread design – allows the bi-metal concrete screw to cut faster, while the shank made from 316 stainless steel also provides excellent outdoor rustproof performance. In a practical test with other similar products, Joker reports the bi-metal concrete screw has been proved to achieve almost double pull-out strength and safety coefficiency with less amount used and better work efficiency. Concrete Lag Screws
“We’ve invested a lot in certification for this product, including shear, tensile strength, breakage limit and many other safety coefficient related tests, with an aim of developing a reliable product that is international standards compliant and safe for users. This product is a newer application in the anchor sector and can be used to replace conventional expansion anchors,” explains Ryan Huang, product manager at Joker Industrial Co Ltd.
Most recently in 2021, Taiwanese-based Joker gained EU approval for seismic tests C1/C2 to satisfy the demands of clients in seismic areas, as well as approval for concrete screws used in redundant non-structural systems (ETA – 21/0177).
Having spent a decade in the fastener industry experiencing every facet – from steel mills, fastener manufacturers, wholesalers, distributors, as well as machinery builders and plating + coating companies, Claire has developed an in-depth knowledge of all things fasteners.
Alongside visiting numerous companies, exhibitions and conferences around the world, Claire has also interviewed high profile figures – focusing on key topics impacting the sector and making sure readers stay up to date with the latest developments within the industry.
Don't have an account? Sign Up
Screwing Into Concrete Slabs Signing up to fastenerandfixing.com enables you to manage your account details.