EJOT JT3-3 fasteners are manufactured from 304 (A2) grade austenitic stainless steel with a hardened carbon steel drill point welded to the stainless steel shank.
The hardened drill point enables the screw to drill carbon steel sections and by having the lead threads formed on this hardened point this allows for correct tapping at high drilling speed.
Where fixing brackets to SFS we recommend they are used with the S16 stainless steel / EPDM vulcanised sealing washer ensuring a safe seal every time.
Subject to design approval we typically recommend using the JT3-3-6.3x50 S16 when fixing EVT helping hand brackets to steel frame systems and the JT3-3-6.3x50 without a washer for fixing tophats and C-channels to steel frame systems.
These fasteners are zinc coated for aesthetic reasons and waxed to lubricate the surface during installation.
The fixing can fix into steel structures 1.2-3.0mm in thickness.
RJ offer a complete range of Ejot stainless steel fasteners for other external applications.
European Technical Approval ETA-10/0200
J8mm Hex Head
A2 Austenitic Stainless Steel fastener with Carbon steel drill point
S16 Stainless/EPDM vulcanised sealing washer
Drive: 8mm clip hex one piece socket
Steel sections from 1.2 to 3.0mm in thickness
Use for assembling EVT Helping Hand brackets, Aluminium Tophats and Channels to steel frame systems. The clamping range varies depending on the fixing WITH or WITHOUT an EPDM washer.