New A4 concrete screw for more demanding environments
EJOT’s UK based R&D team has played the key role in the development of a new high performing concrete screw for use in more challenging applications. The JC6-KB range of A4, grade 316 fasteners has been introduced in tandem with the expansion of EJOT’s established JC2 concrete screw range which now offers significantly greater application potential.
Option One approval for cracked / non-cracked concrete
The goal was to broaden the scope for using concrete screws in more demanding situations particularly those with environmental classifications C1 to C4, in accordance with BS EN 12944, and give construction professionals a further fastening options with the independent assurance of European Technical Assessment (ETA).
Engineered for high technical performance
The result is a bi-metallic, hexagon head concrete screw - distinguished by its gold marking. The fastener is available in 6, 8, 10, 12mm variants formed using corrosion-resistant A4 grade 316 austenitic stainless steel for the main fastener body and head, precision welded to hardened carbon steel on the lead threads.
This JC6-KB’s design also includes ‘anti back-out’ serrations. These serrations form part of the under-head design to provide much greater grip into metal fixture materials such as aluminium. It is part of the innovation that ensures the screws are as easy to use as all the products in the EJOT JC2 concrete screw range.
Performance benefits at a glance:
- Superior corrosion resistance
- Environmental classifications C1 up to C4
- More versatility compared to many anchors
- Minimal expansion means smaller spacings and edge distances
- Simple installation provides a degree of adjustability
- Gold mark bi-met indicator
- Anti-back-out serrations under head
The A4 grade 316 JC6-KB is one part of EJOT’s recently upgraded range of concrete screws. This includes the JC2 range which offers five further screw types suitable in Option 1 cracked, non-cracked and hollowcore concrete suitable for in a wide variety of construction applications, all designed and manufactured to EJOT’s high quality standards and ETA-approved. Read more...
