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Written by: Edina Ciuchilan
16/10/23 - 6 Min read
What is a Hollo-Bolt?
The Lindapter Hollo-Bolt is a versatile and innovative fastening solution designed for connecting structural steel sections, hollow structural sections, and connections between steel members. Among the important features of the Hollo-Bolt is its ability to be used with various head variants and corrosion protection materials to suit different application requirements. Let's explore the different head variants and corrosion protection materials available for the Lindapter Hollo-Bolt:
Head Variants
This is the standard head variant of the Hollo-Bolt. It has a hexagonal head that can be tightened using a wrench or a socket set. This head variant is appropriate for most applications where a secure connection is needed.
The countersunk head variant is designed for applications where an architectural finish is required. It allows for a neat and tidy appearance when the bolt is tightened, as the head has a minimal visible protrusion.
The flush fit head variant is designed for applications where a completely flush finish is required. It provides a smooth, flat surface when tightened, making it appropriate for aesthetic applications or situations where surface protrusion is not possible.
Choosing the right head variant and corrosion protection material for your specific application is essential to ensure the longevity and reliability of your connections. Lindapter's selection of Hollo-Bolt options provides flexibility and adaptability to meet various requirements of the project, from aesthetics to structural integrity and environmental conditions.
Download our Hollo-Bolt Coatings & Head Variants brochure and discover further details about real-life examples.
Corrosion Protection Materials
Zinc Plated Hollo-Bolt with JS500: Zinc plating is a common corrosion protection method that involves applying a layer of zinc to the bolt's surface. When combined with JS500, a proprietary coating by Lindapter, the Hollo-Bolt gains enhanced corrosion resistance. This combination provides protection against rust and corrosion, making it appropriate for both indoor and some outdoor applications. Hot-Dip Galvanised Hollo-Bolt: Hot-dip galvanizing is a process in which the bolt is immersed in molten zinc. This results in a thick, durable zinc coating that offers excellent corrosion protection, even in harsh environments. Hot-dip galvanized Hollo-Bolts are frequently specified in outdoor and marine applications. Sheraplex Coated Hollo-Bolt: Sheraplex is a specialised corrosion protection coating. It is a multi-layer system designed to provide lasting resistance against corrosion. Sheraplex-coated Hollo-Bolts are appropriate for challenging environments, such as industrial plants or coastal areas, where corrosion resistance is crucial. Stainless Steel Hollo-Bolt: Stainless steel Hollo-Bolts are inherently corrosion-resistant because of their composition, made from austenitic stainless steel. These bolts are highly resistant to rust and corrosion, making them appropriate for environments where regular steel would quickly deteriorate, such as in food processing facilities or highly corrosive atmospheres.
Corrosion Category & Examples of Typical Corrosion Environments
The durability of the Lindapter Hollo-Bolt is achieved by coating or by use of stainless steel and is categorised by Corrosivity Class in accordance with ISO 9223. Hollo-Bolts are also available with a special Sheraplex finish that is appropriate for High and Very High Corrosion Categories C4 and C5.
C1 Very Low: Heated buildings with clean atmospheres, e.g., offices, shops, schools, hotels C2 Low: Unheated buildings where condensation may occur, e.g., depots, and sports halls. Atmospheres with low levels of pollution. Mostly rural areas. C3 Middle: Production rooms with high humidity and some air pollution e.g., food-processing plants, laundries, breweries and dairies. Urban and industrial atmospheres, moderate sulfur dioxide pollution. Coastal areas with low salinity. C4 High: Chemical plants, swimming pools, coastal ship and boat yards. Industrial areas and coastal areas with moderate salinity. Coastal and offshore areas with high salinity. C5 (I+M) Very High: Building or areas with almost permanent condensation and with high pollution. Coastal and offshore areas with high salinity.
Download our Hollo-Bolt Coatings & Head Variants brochure and discover further details about real-life examples.
16/10/23 - 6 Min read
What is a Hollo-Bolt?
The Lindapter Hollo-Bolt is a versatile and innovative fastening solution designed for connecting structural steel sections, hollow structural sections, and connections between steel members. Among the important features of the Hollo-Bolt is its ability to be used with various head variants and corrosion protection materials to suit different application requirements. Let's explore the different head variants and corrosion protection materials available for the Lindapter Hollo-Bolt:
Head Variants
This is the standard head variant of the Hollo-Bolt. It has a hexagonal head that can be tightened using a wrench or a socket set. This head variant is appropriate for most applications where a secure connection is needed.
The countersunk head variant is designed for applications where an architectural finish is required. It allows for a neat and tidy appearance when the bolt is tightened, as the head has a minimal visible protrusion.
The flush fit head variant is designed for applications where a completely flush finish is required. It provides a smooth, flat surface when tightened, making it appropriate for aesthetic applications or situations where surface protrusion is not possible.
Choosing the right head variant and corrosion protection material for your specific application is essential to ensure the longevity and reliability of your connections. Lindapter's selection of Hollo-Bolt options provides flexibility and adaptability to meet various requirements of the project, from aesthetics to structural integrity and environmental conditions.
Download our Hollo-Bolt Coatings & Head Variants brochure and discover further details about real-life examples.
Corrosion Protection Materials
Zinc Plated Hollo-Bolt with JS500: Zinc plating is a common corrosion protection method that involves applying a layer of zinc to the bolt's surface. When combined with JS500, a proprietary coating by Lindapter, the Hollo-Bolt gains enhanced corrosion resistance. This combination provides protection against rust and corrosion, making it appropriate for both indoor and some outdoor applications. Hot-Dip Galvanised Hollo-Bolt: Hot-dip galvanizing is a process in which the bolt is immersed in molten zinc. This results in a thick, durable zinc coating that offers excellent corrosion protection, even in harsh environments. Hot-dip galvanized Hollo-Bolts are frequently specified in outdoor and marine applications. Sheraplex Coated Hollo-Bolt: Sheraplex is a specialised corrosion protection coating. It is a multi-layer system designed to provide lasting resistance against corrosion. Sheraplex-coated Hollo-Bolts are appropriate for challenging environments, such as industrial plants or coastal areas, where corrosion resistance is crucial. Stainless Steel Hollo-Bolt: Stainless steel Hollo-Bolts are inherently corrosion-resistant because of their composition, made from austenitic stainless steel. These bolts are highly resistant to rust and corrosion, making them appropriate for environments where regular steel would quickly deteriorate, such as in food processing facilities or highly corrosive atmospheres.
Corrosion Category & Examples of Typical Corrosion Environments
The durability of the Lindapter Hollo-Bolt is achieved by coating or by use of stainless steel and is categorised by Corrosivity Class in accordance with ISO 9223. Hollo-Bolts are also available with a special Sheraplex finish that is appropriate for High and Very High Corrosion Categories C4 and C5.
C1 Very Low: Heated buildings with clean atmospheres, e.g., offices, shops, schools, hotels C2 Low: Unheated buildings where condensation may occur, e.g., depots, and sports halls. Atmospheres with low levels of pollution. Mostly rural areas. C3 Middle: Production rooms with high humidity and some air pollution e.g., food-processing plants, laundries, breweries and dairies. Urban and industrial atmospheres, moderate sulfur dioxide pollution. Coastal areas with low salinity. C4 High: Chemical plants, swimming pools, coastal ship and boat yards. Industrial areas and coastal areas with moderate salinity. Coastal and offshore areas with high salinity. C5 (I+M) Very High: Building or areas with almost permanent condensation and with high pollution. Coastal and offshore areas with high salinity.
Download our Hollo-Bolt Coatings & Head Variants brochure and discover further details about real-life examples.
For more information on Lindapter Hollo-Bolt Coatings & Head Variants talk to Lindapter International
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