Where specified they are assembled with a high quality metal and EPDM vulcanized sealing washer ensuring a safe seal every time.įor aesthetic reasons and to provide lubrication during driving a zinc finish plus wax is applied to these fasteners. The drill points and thread forms are designed to provide maximum mechanical performance with ease of installation into aluminum or timber substrates. Specifically engineered to fix components to thin metal profile, EJOFAST features excellent clamping properties.Ī/F5/16‘‘ hexagon drive JT4 stainless steel SAPHIR self-drilling and self-tapping screwsĪ range of fasteners manufactured entirely from austenitic stainless steel material grade 304 (A2) suitable for use when drilling and tapping into aluminum sections. The EJOFAST range of bi-metal self-drilling screws are manufactured from SS grade 304 and feature an extremely hard carbon steel drill point in combination with high-performance leading threads. The innovative double-thread reduces installation time considerably and noticeably saves labor costs. It is a self-drilling screw without the usual cutting bit. The EJOFAST® thin sheet metal screw is part of the latest screw generation at EJOT. Tensometer testing shows that the EJOFAST JF3 offers an improved pullout resistance advantage of 30% over conventional stitchers. ‘Overlooked’ swarf soon turns to unsightly rust. On site, the removal of swarf should be ‘good housekeeping’ practice. Displaced metal is forced forward - creating a tighter joint. This means significant labor saved on any moderate to large installation.īy displacing, as opposed to cutting the metal, this innovative thread creates no debris and swarf. Multiple time tests at a drive speed of 1650 rpm with an end loading of 44lbs clearly showed EJOFAST to be on average 30% faster than a standard stitcher. Installation also ‘feels’ equally smooth. Preassembled 304 SS washer with vulcanized elastomer for excellent atmospheric/UV resistance and optimal load transmission and secure sealing.ĮJOFAST goes exactly where it should go – no skating on the surface.Material SS 304 (A2) with case-hardened drill point.Point geometry ensures virtually no metal chips.New screw point geometry prevents the fastener from slipping.Asymmetric thread for high-pull-out values.Self-drilling screw without the common drill tip.A2 stainless steel with case-hardened carbon steel drill pointĮJOT EJOFAST JF3 Bi-metal self-drilling fastenersįastens sheet metal fast: used extensively for side-lap stitching on exposed fastener metal panel roofs.įor fixing metal profiles, profiled metal sheets, insulated metal panels, solar mounting systems, wind deflectors directly to steel roof profiles.Excellent atmospheric and UV resistance.
Small dead centre prevents misalignment on the component surface.
Since the 1920s Ejot has been a leader in fasteners for the construction industry.įeatured here are four series of fasteners for metal roofing and cladding applications.