Harpoon Self-tapping Screws: For Metal, For Sandwich Panels, LSTC And Other Purposes, Characteristics And Use

2024 Author: Beatrice Philips | [email protected]. Last modified: 2024-01-18 12:09

Self-tapping screw is one of the types of fastening materials. The article will discuss the characteristics and options for using Harpoon self-tapping screws: for metal, for sandwich panels, LSTK and other purposes.

Peculiarities

A variety of fasteners in shape, size, material and method of application allows unlimited use in various areas of the construction industry. The most common types of self-tapping screws:

• on wood;
• for metal;
• with a press washer;
• roofing;
• confirmation or furniture;
• wood grouses are construction.

In 2007, Global Rivet began manufacturing and supplying Harpoon self-tapping screws.

Due to the high corrosion resistance of the products and extensive positive feedback from users, the products of the concern were selected to participate in the state project of energy efficient housing.

Multi-stage control over the quality of produced materials avoids rejects. There are several verification steps for this:

• visual quality assessment;
• checking for correct geometry;
• assessment of the quality of the protective coating;
• checking the strength of the product.

Tested:

• the quality of overcoming steel surfaces;
• twisting the head;
• fracture of the screw barrel;
• cuts, tears and tears from steel sheets;
• the strength of the packaging material.

Varieties and models

As already mentioned, the variety of models of Harpoon self-tapping screws is quite wide. Let's take a closer look at some of them.

Self-tapping screw for metal - a fastening element having a rod in the form of a cylinder with a thread on the outer edge, having a pointed or drill-like tip and a screw head.

A distinctive feature is the frequent thread pitch, which makes it easier to punch holes in the metal.

Here are the most popular models of such products

Harpoon plus - designed for drilling high-strength alloy steel products. Made of carbon steel material and coated with anti-corrosion layer.

Harpoon Bi-Met - coating with an anti-corrosion layer allows the product to be used in a highly aggressive environment. Guaranteed penetration through high-strength, low-alloy steel material. Allows for high-speed assembly. They have a washer resistant to atmospheric conditions.

Harpoon with EPDM - made of hardened carbon metal with anti-corrosion coating. Designed for thickened products.

Harpoon for add-on elements and fastening the profiled sheets to each other.

Harpoon designed for fixing profiled sheets and metal structures among themselves.

Self-tapping screws for concrete or LSTK, like other fasteners, consist of a cylindrical rod of different sizes and a head, the design of which is suitable for the tools used for screwing.

Here are some models of this kind of products

Harpoon HCC-R-S - intended for attaching sandwich panels to concrete structures. Has an anti-corrosive coating and is resistant to being pulled out of the base.

Harpoon HCC-R-S19 - used for fastening the profiled sheet to concrete structures.

Harpoon HCCV-R - used for fastening disc dowels and concrete.

Usage

In the process of building houses or assembling any other sandwich panel structures, it is usually considered a few basic requirements:

• stable and long-term fastening of structural elements to each other;
• during fastening, avoiding the application of defective violations of the surface of the panels;
• penetration of the fastening element to the proper depth.

The design of the product depends on the area in which it will be used.

Roofing screws have a thick drilling head. These fasteners in relation to sandwich panels carry out tightening without drilling.

The wall fasteners have a distinctive design feature: they are equipped with a hidden head and can be fixed with a hexagon.

Another distinction is the outer coating of the fasteners. A certificate of conformity has been developed for each product, which must contain all the data. External coatings are as follows:

• from tin , providing plasticity and reliable fixation;
• made of cadmium-chromium alloy , having anti-corrosion properties;
• made of copper , protects the screw itself well, but, unfortunately, does not imply secondary use;
• nickel , the most resistant, little subject to wear and tear and external atmospheric factors.

For the correct selection, you need to follow the selection conditions recommended by the manufacturer.

Sandwich-type cladding has a massive internal structure, as a result of which it is worth using screws from 75 to 280 mm for fastening, depending on the thickness of the panel.

Thanks to the double thread, it becomes possible to fix it both in the skin itself and in the surface to which it is mounted.

For more than a decade of use, the products of the Global Rivet company, which produce Harpoon self-tapping screws, have received excellent recommendations in various fields of application

• Building . Construction of suspended facade systems for both conventional and high-rise building projects. Assembly of lightweight metal structures and lightweight building structures made of thin steel.
• Industrial products … Domestic auto industry, instrument-making institutes, nuclear industry, medical equipment and furniture, electrical engineering, household appliances, food industry, equipment for trade.

It's safe to say that products manufactured by Harpoon have proven themselves in the market for similar products from the most advantageous side . The recommendations given by the manufacturer allow you to safely give preference in the choice of analogs.