How to Install Chemical and Mechanical Anchors: Instructions and Best Practices

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The correct installation of anchors is essential to ensure the strength and safety of fixings, guaranteeing optimal performance and long-term reliability. For a secure and durable anchorage, it is crucial to carefully follow installation procedures, use appropriate tools, and comply with the specified installation times and values indicated in the technical data sheets. For this reason, we recommend always consulting the updated product technical data sheets to access any revisions or updates to technical information.


Ancoranti chimici

Installing chemical anchors requires precision, dedicated tools, and strict adherence to a sequence of steps to guarantee proper installation, maximum load capacity, and safety.

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1. Forare i materiali pieni con trapano a rotopercussione, mentre per i materiali forati utilizzare solo la rotazione per evitare danni al supporto. Controllare sempre la perpendicolarità del foro.

The hole diameter must be larger than the threaded rod or rebar to be installed, as specified in the technical data sheet.

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2. Procedere alla pulizia del foro, necessaria per garantire l’adesione della resina. Soffiare il foro con pompa soffiante o compressore d’aria per rimuovere completamente polvere e residui, quindi pulire le pareti con scovolino metallico di diametro superiore a quello del foro (per esempio, per barra M12 con foro 14, lo scovolino consigliato è 16). Soffiare nuovamente fino a ottenere un foro perfettamente pulito.

Incomplete cleaning can compromise load performance and pose a safety risk.

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3. Preparare la cartuccia svitando il tappo. Nei formati 300 ml e 165 ml rimuovere la clip metallica inserendo il miscelatore nell’asola dell’estrattore in plastica, tirando per sfilare la clip di chiusura del sacchetto. Avvitare quindi il miscelatore e inserire la cartuccia nel dispenser, utilizzando protezioni per mani e viso.

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4. Check that the components are properly mixed by extruding an initial portion of the product. The two components (A white and B black) must be fully blended until a uniform color is achieved; only then is the product ready for use.

If mixing is incomplete, the chemical reaction may fail, and the resin may not cure properly, compromising anchoring performance.

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5. Estrudere la resina partendo dalla base del foro fino a riempirlo per circa due terzi. Per materiali forati, inserire la gabbietta plastica o metallica e poi estrudere la resina fino al completo riempimento della gabbietta. Per fori profondi utilizzare prolunghe applicate all’estremità del miscelatore in modo da garantire il corretto riempimento dal fondo verso l’uscita, evitando bolle d’aria o zone senza resina.

L’ancorante chimico è tixotropico, quindi non cola e può essere impiegato anche in applicazioni sopra testa. L’uso della prolunga con tappo per l’iniezione permette di controllare con precisione il flusso della resina, garantendo il riempimento corretto del foro dal fondo verso l’uscita.

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6. Insert the clean and dry threaded rod or rebar with a slow twisting motion to eliminate air pockets.

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7. Respect the curing times specified in the technical data sheet before applying torque or load.

Chemical anchors

Ancoranti meccanici

Even for mechanical anchors, strictly following the correct operational sequence, from drilling to tightening, is essential to ensure full efficiency and the safety of the anchorage.

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1. Forare il supporto con trapano a rotopercussione, utilizzando il diametro corretto indicato in scheda tecnica e controllando sempre la perpendicolarità del foro.

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2. Pulire completamente il foro da polvere e residui mediante aria compressa o pompa soffiante, assicurando il contatto ottimale tra ancorante e supporto.

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3. Insert the anchor into the hole by tapping it with a hammer, positioning it correctly without damaging either the anchor or the base material.

4. Tighten using a torque wrench according to the values specified in the technical data sheet.


Careful execution of all installation steps is crucial to achieve the load capacities stated in technical data sheets and to minimize the risk of structural failure or inadequate resin bonding. Key factors such as proper hole cleaning, correct resin mixing (for chemical anchors), controlled insertion and torque-controlled tightening are essential to ensure consistent, safe, and long-lasting performance. For every application, always refer to updated technical data sheets and ETA (European Technical Assessment) certifications.

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      Chemical anchors

      Bossong offers a complete range of chemical anchors engineered to provide outstanding reliability, fast installation, and compliance with European regulations.
      The choice depends on the type of base material, installation conditions, and required load performance.
      Chemical anchors are the ideal solution when a secure and long-lasting fastening is needed across different construction materials. They work through a resin that, once injected into the hole with a threaded rod or rebar, hardens and creates a high-strength bond. Versatile and high-performing, chemical anchors are suitable for applications ranging from small craft installations to demanding structural works.

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      Threaded rods & anchoring elements

      Bossong offers a wide range of rods and accessories designed to suit various construction materials and on-site requirements, always in compliance with current technical standards.
      Threaded rods and anchoring elements are essential components in construction fixings. Used together with chemical or mechanical anchors, they ensure strength, safety, and precision.
      Whether for structural connections, masonry installations, or light fixings, these elements form the core of the anchoring system, providing the crucial link between the structure and the base material.

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      Construction chemicals

      Construction chemicals include essential products for fastening, filling, and protection tasks. From pourable epoxy resin for structural consolidation to polyurethane foams for quick sealing, and professional sprays for maintenance and treatment, these materials make site operations faster, more accurate, and more durable.
      Bossong provides safe, tested solutions engineered to deliver consistent performance at every stage of the construction process.

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      Mechanical anchors

      Mechanical anchors are fastening systems that rely on expansion or mechanical tightening to secure an element within the base material. They offer a fast, reliable solution suitable for both light loads and more demanding applications.
      Bossong provides a complete assortment of anchors and accessories designed for different materials and installation conditions.

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      Lightweight Anchors

      Light-loads anchors are designed for quick, secure fixings in low-strength materials or thin supports such as plasterboard, hollow blocks, or insulation panels.
      They stand out for ease of installation, versatility, and practicality—making them indispensable for everyday applications.
      Bossong offers a selection of high-quality products capable of meeting the needs of construction professionals.

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      Fastening with screws

      Screw fastening is the most common and immediate fixing solution in construction, thanks to its ease of use and the high level of safety it provides.
      Each screw type is engineered to match specific base materials—from wood to concrete, steel, and window or door frames.
      Bossong supports industry professionals in their daily work with a wide range of products developed through decades of field experience.

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      Direct fastening

      Powder-actuated direct fastening makes it possible to drive nails and brackets directly into the base material without pre-drilling, significantly reducing installation time and costs.
      This technology is especially valuable on construction sites where speed is essential.
      Bossong enables construction professionals to work with speed, precision, and safety thanks to internally developed systems backed by decades of industry experience.

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      Hand nailing

      Manual nail fastening remains one of the most practical and immediate solutions for light-duty applications or finishing work.
      Simple and reliable tools make it ideal for light carpentry and everyday on-site tasks.
      Bossong has always offered a wide range of nails and accessories to ensure safe and comfortable work conditions.

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      Drilling & cutting

      Drilling and cutting are everyday tasks on construction sites.
      To ensure precision, speed, and long tool life, Bossong offers a complete range of dedicated equipment—products developed through extensive field experience and continuous dialogue with construction professionals, delivering maximum performance in every condition.

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      Testing equipment

      Testing equipment is essential for verifying the holding power and strength of installed anchors, ensuring safety and regulatory compliance.
      Bossong designs each solution according to strict standards, drawing on decades of field experience and continuous internal research to offer construction professionals the highest performance in every context.

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