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DIBt Newsletter

DIBt Newsletter
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DIBt APPROVAL NEWSLETTER INSIDE: • ABOUT DIBt • PART NUMBERS • HUCK® BOBTAIL® DIBt APPROVAL • COORDINATION DRAWINGS • HUCK MAGNA-LOK® & MAGNA-BULB® DIBt APPROVAL • COATINGS • MECHANICAL VALUES • NEXT STEPS

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It's Official: Huck BobTail Offers Maintenance Free Joints The Huck BobTail 12,14,16, 20mm and 1 inch diameters, after lengthy and vigorous independent testing, has gained the prestigious Allgemeine bauaufsichtliche Zulassungen (German national technical approval) from the world renowned DIBt (Deutsches Institut fur Bautechnik) for use in both static and dynamic applications in civil engineering. Futhermore, the approval concludes that retorque/ retension of an installed Huck BobTail LockBolt is not possible and also not necessary and connections do not require maintenance regarding...

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Procuring the Huck BobTail DIBt Approval A copy of the controlled approval document in German can be purchased After entering the website use the search function to find Z-14.4-591 directly from the DIBt official website (www.dibt.de). Registration is necessary to ensure the purchaser is kept up to date with any changes to the approval. After entering the website use the search function to find Z-14.4-591. Huck BobTail DIBt Approval APPROVAL NUMBER Z-14.4-591 Valid from 1 July 2015 to 4 November 2021 (First approval 2011) The testing and validation of test results are carried out The...

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Nominal Diameter Fv,Rk [KN] Ft,Rk [KN] Fv,Rk Characteristic value of shear resistance Fp,C Characteristic preload Ft,Rk Characteristic value of tension resistance As Tensile stress area As it's such an important part of the approval, the following Additional rules/guidelines are included in the approval text is exact wording taken from the Approval Document: pertinent to use in wind energy plants. SECTION 5 OF DIBt APPROVAL Provision for service and maintenance Accordingly executed connections with LockBolts (e.g. direct contact of structural parts, no unsuitable coating) do...

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Due to the verification of conformity requirement, the products included in the approval have specific part numbers. This ensures that when the products are ordered they meet the DIBt approval standard. Example of Co-ordination Drawing shown below: UNCONTROLLED DOCUMENT HUCK MARK, CLASS 10.9 MARK. & GRIP NUMBER (20 IS EXAMPLE) PIN: DB12112-(GRIP NUMBER) (FINISH CODE) Example: DB12112-20J45 COLLAR: DB12012 (FINISH CODE) Example: DB12012J46 (6) EQUALLY SPACED BUMPS AND 2 HUCK MARKS AS SHOWN APPROVED FINISH CODES MINIMUM INSTA CLAMP TENSILE SHEAR J57 and J58 Finish Codes Added FIRST ISSUE This...

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Procuring the Huck Magna-Lok and Magna-Bulb DIBt Approval The Huck Magna-Lok 1/4", 3/8" and 1/2" and Magna-Bulb 1/4" blind rivets are now certified and approved under the DIBt accreditation. These blind rivets can be used in civil engineering and are installed using suitable tools as discussed on the next page. Applications include steel structural elements. area, providing a stronger, longer lasting connection. When a Magna-Lok is installed, the mandrel is drawn in and fills the diameter of the hole. The pin locks in the sleeve then breaks off. Magna-Lok also has a wider grip range to...

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Fastener Type Rivet Type Diameter [mm] Fv,Rk [KN] Ft,Rk [KN]* Head Style Fv,Rk Characteristic value of shear resistance Ft,Rk Characteristic value of tension 11 A characteristic shear load-bearing capacity reduced to 85% applies for thickness of structural element I < 88.00 mm * The values shown are for "Dicke Bauteil II" of 5mm Service and Maintenance Additional Information Once installed, the Magna-Lok and Magna-Bulb create a permanent lock making these structural fasteners. The unique locking design creates an internal lock during installation that virtually eliminates pin...

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Example of Co-ordination Drawings shown below: INDEX 9129-C1 ZINC PLATE WITH CLEAR CHROMATE. CADMIUM PLATE AVAILABLE. PIN: ZINC PLATE CLEAR CHROMATE REFERENCE INSTALLED PIN POSITION: FLUSH MANUFACTURER'S OPTION. PART NUMBER GRIP RANGE INSTALLED FASTENERS 'This drawing, (he structural design disclosed therein, and the technical data □nd engineering service represented thereby are the exclusive property of Huck International Inc. It is to be returned to Huck upon written request and is not to be reproduced in whale ar in part or disclosed to any one eli without the express written consent of...

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Coatings BobTail Standard coating on the approved BobTail are J45 (Pin) /J46 (Collar) which is equivalent to C4 (typical environments Industrial and Coastal, Chemical Processing Plants) in ISO 12944 http://www.international-pc.com/markets/infrastructure/Documents/iso-12944.pdf Whilst Arconic do not offer a specific corrosion guarantee for each of these coatings, we are able to show through extensive testing that the following figures can be expected, providing the fastener is installed correctly. All testing was carried out by an independent 3rd party testing facility at Institut für...

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