Our recommended products and services
HEICO-TEC® Reaction Nuts are the ideal complement to the HEICO-TEC® Tension Nut for use with through-bolted connections. If you already enjoy the advantages of HEICO-TEC® Tension Nuts for active pre-tensioning, you need an equivalent reactive nut on the opposite end. Due to their special shape, HEICO-TEC® Reaction Nuts can flex elastically. And the more elastic a bolted joint is, the more durable and secure it is against untightening and loosening. Advantage of the HEICO-TEC® Reaction Nut Even load distribution through concave contact surface Preload losses are effectively reduced No additional space is required, tension nuts and reaction nuts have the same dimensions Compatible with ISO 898-2 HEICO-TEC® Reaction Nuts meet all requirements of ISO 898-2. They therefore have the same strength as conventional hex nuts and can replace them 1:1. However, they must not be used for active pre-tensioning, rather only on the opposite reactive end.
The HEICO-LOCK® HLK-Washers offer high quality anti-vibration security for HV sets according to DIN EN 14399-4 and DIN EN 14399-8. Even under extremes of vibration or severe dynamic loads in steel construction the HEICO-LOCK® HLK-Washers, which are approved by the German Institute for Structural Engineering (DIBt), provide maximum reliability. Due to the increased under head radius of HV bolts, the HEICO-LOCK® HLK-Washers are chamfered on the internal diameter to ensure optimal surface contact while tightening. Advantages of the HEICO-LOCK® HLK-Washers Designed to secure HV sets according to DIN EN 14399-4 and DIN EN 14399-8 Replacing washers according to DIN EN 14399-6 Approved and certified construction product (certificate of conformity) Approved for use by General Building Supervisory Authority (DIBt) Approval No Z-14.4-702 Very easy to install and remove (HLK-washers are supplied as a pre-assembled pair) The double chamfer also ensures that the HEICO-LOCK® HLK-Washers cannot be applied incorrectly, so avoiding operator error High corrosion resistance provided by use of a zinc-flake coating Available for HV sets from M12 up to M36