HEICO-LOCK® WEDGE LOCK WASHERS

The HEICO-LOCK® wedge locking system delivers high quality anti-vibration security for the most demanding of bolted joint applications. Even under extremes of vibration or dynamic loads, HEICO-LOCK® wedge lock washers provide Maximum reliability. When the bolt is tightened, the external radial teeth of the HEICO-LOCK® wedge lock washers embed themselves in an interlocking fashion with the respective mating surface. If the securing system is subject to dynamic stress, movement is only possible between the internal washer surfaces. This results in an increase in the preload force.

  • Certified system for securing bolts, working at low and high preload levels

  • Particularly suitable for dynamic loads – including when using lubricants

  • Can be re-used without any reduction in function or quality

  • Very easy to install and remove (wedge lock washers are supplied as a      pre-assembled pair)

  • Also suitable for high-tensile bolts of 8.8, 10.9 and 12.9 and their respective nuts

  • Available in steel or stainless steel with narrow or wide bearing surfaces – other materials such as Inconel and SMO are available upon request

  • Available from M3 – M76 and ¼” – 3” - custom sizes upon request

HEICO-LOCK® RING LOCK WASHERS

HEICO-LOCK® ring lock washers provide high-quality, user-friendly bolt securing for the most demanding of applications and are ideal for repeated use. The ring locking system guarantees that the two wedge lock washers are always fastened in the correct position with the wedge shaped cams on the inside and the radial teeth on the outside. This means that the bolt locking system is always easy, safe and quick to install, even for non-specialist users.

HEICO-LOCK® ring lock washers are supplied pre-assembled. The ring locking system consists of a polyamide ring (PA) and the already familiar HEICO-LOCK® wedge lock washers. Whereas the wedge lock washers secure the bolted connections reliably, the ring holds the two individual washers together in the correct position permanently.

  • Very easy to install and remove (ring locking system is supplied pre-assembled)

  • Proven system for securing bolts, at high as well as low preloads

  • Particularly suitable for dynamic loads – including when lubricants are used

  • Reusable with no reduction in quality or convenience

  • Also suitable for use with high-tensile bolts of 8.8, 10.9 and 12.9 and their respective nuts

  • Available in steel or stainless steel with a narrow or wide bearing surface

HEICO-LOCK® HLK-WASHERS FOR STEEL CONSTRUCTION

The HEICO-LOCK® HLK-washers deliver 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.

  • 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

HEICO-LOCK® WEDGE LOCK NUT

The HEICO-LOCK® Wedge Lock Nut provides a high-quality, user-friendly bolt securing system for the most demanding of applications and is ideal for repeated use. The captive and rotary combination of nut and the original HEICO-LOCK® Wedge Lock Washers makes securing your bolted joints more efficient, effective and easier even under the most extreme vibrations and dynamic loads.

The HEICO-LOCK® Wedge Lock Nut is supplied pre-assembled. The nut and the HEICO-LOCK® Wedge Lock Washers are combined in a captive and rotary way, ensuring the HEICO-LOCK® Wedge Lock Washers and the nut are fixed permanently in the correct position with the wedge lock washers securing your bolted joint using the proven HEICO-LOCK® principle without loss of quality or function.

  • The one piece design eliminates the risk of misuse

  • Minimized ridk of operating and production breakdowns caused by faulty bolted connections

  • Easy handling especially in hard to reach locations

  • Fixed permanently in the correct position

  • Reduction of assembly time and effort

  • Reduced complexity of the component due to less individual parts

  • Easy, safe and fast installation even for non-specialist users

  • Can be re-used without any reduction in function or quality

HEICO-LOCK® WHEEL NUT

The HEICO-LOCK® Wheel Nut is the reliable solution for the problem of self-loosening of wheel nuts on both roads and rough terrain. The captive and rotary combination of the nut and the proven HEICO-LOCK® Wedge Lock Washers provides ideal protection for securing your wheels even under the most adverse circumstances, high speeds and demanding road conditions. With the HEICO-LOCK® Wheel Nut accidents caused by wheel loss are a thing of the past!

The HEICO-LOCK® Wheel Nut is supplied pre-assembled. The nut and the HEICO-LOCK® Wedge Lock Washers are combined in a captive and rotary way, ensuring the HEICO-LOCK® Wedge Lock Washers and the nut are fixed permanently in the correct position with the wedge lock washers securing your bolted joint using the proven HEICO-LOCK® principle without loss of quality or function.

  • Significantly reduces risk of accidents by loosening of wheel nuts

  • Easy handling due to pr-assembled combination of HEICO-LOCK® Wedge Lock Washers and nut

  • Minimized risk of operating and production breakdowns caused by faulty bolted connections

  • Reduction of assembly time and effort

  • Can be re-used without any reduction in function or quality

  • Easy, safe and fast installation even for non-specialist users

  • Fixed permanently in the correct position

HEICO-LOCK® COMBI-WASHERS

The efficient combined securing system for highly loaded bolted connections.

HEICO-LOCK® combi-washers enable quick and easy assembly, especially in difficult installation situations. Combine the simple to use HEICO-LOCK® combi-washers with all commercially available bolts provided by your suppliers, quickly and easily.

  • Easy mounting and permanent connection thanks to the inset tabs

  • Can be combined with all commercially available bolts

  • Also available in small purchase quantities

  • Flexible use for various different types of bolts

  • Permanent securing and correct positioning of HEICO-LOCK® wedge lock washers

  • Can be re-used several times

  • Cost savings through increased productivity

  • Available in steel or stainless steel with narrower and wider contact areas

  • Available from M8 to M16

  • Can be supplied completely pre-assembled on request

HEICO-TEC® TENSION NUT

For a secure joint with a HEICO-TEC® tension nut, no electric, hydraulic,
or pneumatic tools are needed. All you need is a torque wrench.


The HEICO-TEC® tension nut is unique in the fact that the pretension
force of the large main thread is distributed to many smaller pressure
bolts. Because the pressure bolts are smaller, a conventional torque
wrench can be used to achieve the correct pretension force.
This eliminates the need for complex, bulky, or heavy tools and makes
securing large bolted joints more convenient and easy.

HEICO-TEC® tension nuts meet all the requirements of ISO 898-2 which enables you to easily replace any hex nut from the same strength class while also offering all the advantages of a hand-tightened nut.

  • SIMPLE
    A hand-held torque wrench is all you need for tightening and loosening.
    No special tools are required. This makes maintenance far easier.

  • FAST
    Manual pretensioning saves on the transport and set-up times that would be required by special tools. HEICO-TEC® tension nuts are often tightened in the same time it takes to set up electric, hydraulic or pneumatic tools.

  • RELIABLE
    The pressure pins act like springs and increase the flexibility of the bolted joint. This compensates for settlement of the joint, thus preserving preload.

  • SAFE
    With the inherent mechanical flexibility of the HEICO-TEC® design, the bolted joint performs as if it has a greater clamping length, making it highly
    resistant to loosening forces.

  • HEICO-TEC® design, the bolted joint performs as if it has a greater clamping length, making it highly resistant to loosening forces.

  • DURABLE
    The greater flexibility reduces the bolted joint’s dynamic stress, thus increasing its service life.

  • PRECISE
    Controlled friction characteristics ensure the highest tightening and repeat accuracy – guaranteed and confirmed by DNV GL.

  • REUSABLE
    As the HEICO-TEC® assembly is not damaged during tightening and loosening, the HEICO-TEC® tension nuts are reusable.

  • COMPATIBLE
    HEICO-TEC® tension nuts comply with all ISO 898-2 requirements. You can
    directly replace any conventional nut from the same strength class.

  • ECONOMICAL
    Our efficient and high volume manufacturing process means that we can transfer the cost benefits directly to our customers.

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