HEICO-LOCK® Fastening Systems

HEICO-LOCK® Fastening Systems
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HEICO-LOCK® Fastening Systems

Product catalog summary
Introduction
HEICO-LOCK® Wedge Locking Systems are engineered to prevent self-loosening of bolted connections, a common issue under dynamic loads and vibrations. These systems offer reliable anti-vibration security where traditional securing elements may fail.
Product Overview
The product line includes Wedge Lock Washers, Ring Lock Washers, Wedge Lock Nuts, Combi-Washers, and HLK-Washers, suitable for applications in mechanical engineering, offshore, and heavy industry.
Technical Specifications
  • Hardness: Washers have higher surface hardness than structural and high tensile bolts.
  • Angles: The wedge angle is greater than the bolt thread pitch for effective locking.
  • Friction: Lower friction on wedge-shaped surfaces enhances locking.
  • Preload: Increases clamping force under dynamic stress, maintaining bolt security.
Functional Principle
The system uses preload force rather than friction to secure bolts, with wedge-shaped cams and radial teeth ensuring interlocking and increased clamping force under dynamic loads.
Installation Examples
Includes securing hexagon bolts in through-holes and blind holes, and countersunk socket head bolts.
HEICO-LOCK® Products
  • Wedge Lock Washers: Certified for dynamic loads, reusable, available in various sizes and materials.
  • Ring Lock Washers: User-friendly, ideal for repeated use, ensure correct positioning with a polyamide ring.
  • Wedge Lock Nuts: Reusable design combining a nut with wedge lock washers, effective under extreme vibrations.
  • Combi-Washers: Allow quick assembly, compatible with all bolts, offer permanent securing.
  • HLK-Washers: Designed for HV sets, approved for construction use, high corrosion resistance.
Conclusion
HEICO-LOCK® Wedge Locking Systems provide a reliable solution for securing bolted connections in demanding applications, ensuring safety and efficiency.
Additional Product Details
  • HLK-Washers: Designed for HV sets, approved by the German Institute for Structural Engineering, available in sizes M12 to M36.
  • Specifications: Chamfered for optimal surface contact, available in carbon steel, suitable for slip-resistant connections.
  • Torque Guidelines: Detailed torque and preload specifications ensure proper installation and performance.
  • Product Assembly: HEICO-LOCK® PLUS system combines washers and nuts for easy installation, available in sizes M6 to M24.
Technical Support
HEICO offers extensive technical support, including testing, friction coefficient calculations, load and torque tests, and customer-specific tests. Training and seminars are available.
Test Benches and Measurement Technology
In-house testing facilities include vibration test benches, torque/clamp force test benches, and salt spray test chambers.
Special Products
Custom solutions such as the HEICO-LOCK® Combi Bolt and Special Washers are available, with capabilities for producing cold forged parts tailored to customer specifications.
Company Overview
HEICO is a family-owned business based in Germany, specializing in fastening technology since 1900, operating internationally with high levels of technical support and testing options.
Additional Systems
HEICO-TEC® Tensioning Systems complement HEICO-LOCK® products, allowing for easy pretensioning of large bolted joints by hand.
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Catalog excerpts

HEICO-LOCK® Fastening Systems-1

HEICO FASTENING SYSTEMS HEICO-LOCK® WEDGE LOCKING SYSTEMS WWW.HEICO-LOCK.COM

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HEICO-LOCK® Fastening Systems-2

HEICO-LOCK® Wedge Locking Systems - high quality anti-vibration security for the most demanding of bolted joint applications! HEICO-LOCK®WEDGE LOCK WASHERS The proven locking system for the most demanding of bolted joint applications. RING LOCK WASHERS Bolted connections tend to work themselves loose under certain operating conditions. Vibrations cause particular problems as they can overpower the "self-locking effect” of bolted connections. This can lead to functional failure or even to the connection coming apart. As it’s not always possible to know what forces are acting on the structure,...

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HEICO-LOCK® Fastening Systems-3

HEICO-LOCK® WEDGE LOCKING SYSTEM THE HEICO-LOCK® WEDGE LOCKING SYSTEM TECHNICAL DATA Even under extremes of vibration or dynamic loads, the HEICO-LOCK® Wedge Locking System provides maximum reliability. When the bolt is tightened, the external radial teeth of the HEICO-LOCK® Wedge Locking System embed themselves in an interlocking fashion with the respective mating surface. 1. Difference in hardness: HHEICO > HMaterial n The surface hardness of HEICO-LOCK® Wedge Lock Washers is greater than that of structural grade and high tensile bolts (e.g. strength classes: 8.8, 10.9,12.9) Steel (through-hardened,...

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HEICO-LOCK® Fastening Systems-4

HEICO-LOCK® WEDGE LOCK WASHERS THE PROVEN LOCKING SYSTEM FOR THE MOST DEMANDING OF BOLTED JOINT APPLICATIONS. PRODUCT OVERVIEW The self-loosening of bolted joints is one of the most commonly occuring failure modes in the operation of machines and systems. HEICO-LOCK® Wedge Lock Washers prevent loosening of the bolted joint by providing a safe and reliable bolt securing system - even for extremes of vibration or dynamic loads. STAINLESS STEEL* ITEM NO. n Certified system for securing bolts, working at low and high preload levels n Particularly suitable for dynamic loads – including when using...

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HEICO-LOCK® Fastening Systems-5

HEICO-LOCK® RING LOCK WASHERS THE INNOVATIVE SYSTEM WITH ADDED SECURITY. PRODUCT OVERVIEW 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. n Very easy to install and remove (ring locking system...

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HEICO-LOCK® Fastening Systems-6

HEICO-LOCK® WEDGE LOCK NUTS COMBINED. EFFICIENT. SAFE! PRODUCT OVERVIEW The HEICO-LOCK® Wedge Lock Nut is a re-usable one piece design that delivers high quality, user friendly bolt security without the need for seperate fasteners. The captive and rotary combination of the 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 n The one piece design eliminates the risk of misuse n Minimized risk of operating and production breakdowns caused by faulty bolted connections...

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HEICO-LOCK® Fastening Systems-7

HEICO-LOCK® COMBI-WASHERS FLEXIBLE. FAST. INNOVATIVE. PRODUCT OVERVIEW 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. n Easy mounting and permanent connection thanks to the inset tabs STAINLESS STEEL* ITEM NO n Can be combined with all commercially available bolts n Also available in small purchase quantities n Flexible use...

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HEICO-LOCK® Fastening Systems-8

HEICO-LOCK® HLK-WASHERS HLK-WASHERS FOR STEEL CONSTRUCTION PRODUCT OVERVIEW 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. * Carbon...

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HEICO-LOCK® Fastening Systems-9

HEICO-LOCK® PLUS THE EASY-TO-ASSEMBLE COMBINATION OF NUT AND WASHER HEICO-LOCK® PLUS offers an easy to assemble and economically advantageous bolt securing system due to the flexible, glued connection of nut and Wedge Lock Washer. Standard hexagon nuts according to ISO 4032 are combined with our proven HEICO-LOCK® Wedge Lock Washers. This systems secures your bolt connection, saves time and reduces costs. ■ Reduction of parts due to combination of wedge lock washer and nut ■ Easy, safe and fast installation in both serial production and in the field ■ Reduction of assembly time and effort ■ Flexible...

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HEICO-LOCK® Fastening Systems-10

TECHNICAL SUPPORT HEICO-LOCK® SPECIAL PRODUCTS SPECIAL PRODUCTS FOR NON-STANDARD APPLICATIONS In addition to the standard products, we also offer you special custom solutions - such as the HEICO-LOCK® Combi Bolt or HEICO-LOCK® Special Washers. In order to be able to respond quickly and flexibily to your wishes, we have modern machinery at our disposal. On high-performance multi-stage presses, such as the SACMA SP 470, we are able to produce cold forged parts according to customers’ drawings using cold forming or warm forming methods. In our production, we process wire (steel, stainless steel,...

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HEICO-LOCK® Fastening Systems-11

A STRONG GROUP BEHIND STRONG PRODUCTS The HEICO group, based in the town of Ense in Westphalia, Germany, is a family-owned business with a long tradition. The company has been working passionately in the field of fastening technology since 1900. HEICO operates internationally with multiple company sites strategically located throughout the world. The group offers the highest degree of technical support and individual testing options. Find out more about us: www.heico-group.com In addition to the HEICO-LOCK® Wedge Locking Systems, the HEICO-TEC® Tensioning Systems complement the portfolio of the...

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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.