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Dowels, as already stated, hot water cloudy the invention of the twentieth century. They successfully expanded all over the world helped high durability and low cost plastic from which it is made. Today, not a substitute various hot water cloudy blocks that are jammed hard into the walls and reinforced plaster, but a full-fledged connecting element, without which many construction techniques (such as suspended facades) do not cope. In addition to universal plugs that can be used in virtually all building materials are also producing special designed, for example, installation of window and door frames and other large complexes. advertising hot water cloudy
Dowels Fisher from "classic" not just in significantly greater length, but at first glance are significantly different in their construction: after insertion into the drilled hole is screwing special screw to the fact that the originally cylindrical mold begin to "climb" projections hot water cloudy (see the introductory photo) to be locked firmly into cavities such as brick blocks.
This is due to the original design dowel, consisting of two rows of opposing lamellae in which the holes are punched eccentrically. Screw the special screw holes are centered, plates abut on the walls of the hole and fixature - for example, the window frame - is reliably connected with the base.
The name of this type of anchors - FUR - is derived from the phrase Fischer universal frame anchor; it really is a versatile hot water cloudy nylon plugs perfectly rozvíratelnou special steel bolts class 6.8 or stainless steel A4-70 suitable for use in aggressive environments.
As to size, plugs FUR produced in diameters of 8, 10 and 14 mm lengths osmimilimetrových plugs are 80, 100 and 120 mm, desetimilimetrové are manufactured in lengths from 80 to 230 mm; largest size, diameter 14 mm, a length of 100-360 mm. Due to the high adhesion splayed dowel to all construction materials hot water cloudy and their strength steel or stainless steel screws hot water cloudy such connections can keep even the heaviest objects; force for extracting the smallest anchor must be higher than 250 N, about 25 kilograms. The largest of these anchors would be needed to pull strength of at least 1.8 kN, about 180 kg. For what materials are designed plugs FUR?
The compact materials, which include, for example, concrete or masonry, holds almost every anchor; However, the problem is the building material or less coherent with irregular internal structure (laterally and longitudinally perforated bricks, hollow blocks of lightweight concrete, aerated concrete, pumice bricks, heraklit and other building materials with low compressive strength) - there are fully proves the ability to adapt plugs FUR is drilled cavity that their extended lamellae firmly block out of its wall.
However, the condition is used for the original anchors bolts that come along with it; when do we use universal fixing screws hot water cloudy of various diameters (eg dowel SX10 can use a screw with a diameter of 6 and 8 mm) must be fitted with plugs FUR prescribed screw. It has in fact reinforced compared to conventional screw shank, which thus enables higher tensile and shear loads. These safety bolts are manufactured with hexagon head, countersunk or hexagon head, integrated washer and šesticípým recess in the head for a bit type Torx. Countersunk hot water cloudy head is designed primarily for wood and wood-based products (particleboard, MDF, etc.), Hexagonal head and Torx head are suitable for metal structures. hot water cloudy
Use dowels FUR can to walls and building structures to consolidate as door and window frames, construction of wooden paneling, facade and roof elements, various metal bracket for radiators, cabinets and kitchen cabinets.
Work with this type of anchor is simple: they are intended for through-mounting, this means that as a building material (e.g., a wall) and fixture part (e.g., window frame) hot water cloudy mutually hot water cloudy svrtají prescribed drill diameter. Drills are fundamentally without impact, which could put some fragile building material damage. The holes are then deflates or suck dust and anchor into a drilled hole pushed. To prevent damage hot water cloudy to less cohesive materials in the application, it is advisable to stop tightening the screw when you feel that fixing "pulls well."
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