Dictionary Fastening Technique

1  Spacing distance
Spacing distance ArrayConsideration must be given to the minimum distances required when setting groups of fixings to avoid failure of the building material. A factor of 3 times the setting depth must be used to achieve maximum loads.
2  Edge distance
Edge distance ArrayConsideration must be given to the minimum edge distances to avoid failure of the building material.
3  Bending moment M
Bending moment M ArrayFor some applications anchors are subjected to bending moments. For example at a distance fixing.
4  Screw types
Screw types Array1) Hexagon

2) PZ2/3

3) T30/T40

4) Hexagon, T40, collar
5  Torque
Torque ArrayForce (F) x lever arm (H), measured at fulcrum (D), Nm = Newton meter

The anchor should be set using the recommended torque settings.
6  Installation moment
 When the anchor is set using the correct torque a guaranteed fixing can be achieved.
7  Load directions
Load directions ArrayTension (Z), Shear (Q), Combined (S)
8  Force
 The force is indicated in Kilo-Newton (kN) / Newton (N)

1kN=1000N=100dN ≈ 100kg

10N=1dN ≈ 1kg
9  Setting data
Setting data Arrayhef: Setting depth

h1: Drilling depth

hmin: Thickness of base material

tfix: Usable length
10  Breaking load
 Failure of fixing (pt. 16)
11  Approved and recommended loads
 Approved loads are those given in the corresponding approval. German national approvals for nylon products include a safety factor of 5. Working loads for products with European Technical Approval include a partial safety factor given by ETAG. Recommended loads are not equal to approved loads. Recommended loads are determined under laboratory conditions and do not consider any influence of edge or centre distances.
12  Load classification
Load classification ArrayStatic loads
Load classification ArrayDynamic loads / Pulsating
Load classification ArrayDynamic loads / Shock
Load classification ArrayDynamic loads / Alternative
13  Methods of application
Methods of application ArrayThrough fixing
Methods of application ArrayPre installation
Methods of application ArrayDistance fixing
14  Drilling process
 Rotary drilling with wood drills and carbide drills: Drilling without percussion. Application: wood, plywood, particle board, wood fiberboard, gypsum plasterboard, fibercementboard, aerated concrete, perforated brick.

Percussion drilling with carbide drills: Drilling at high speed with fast, short impacts. Application: brickwork made of solid blocks.

Hammer drilling with SDS-drills: Drilling at low speed with slow, strong impacts. Application: concrete and natural stone.
15  Setting order of insulation fixings
Setting order of insulation fixings Array
16  Modes of failure
Modes of failure ArrayConcrete failure
Modes of failure ArraySteel failure
Modes of failure ArrayAnchor failure
17  Different anchor types
Different anchor types ArrayTorque controlled expansion anchors (e.g. m2, m3, HL). Expansion achieved by application of torque.
Different anchor types ArrayHammer set expansion anchor (e.g. ESA). Expansion is achieved by hammering a cone in the body of the anchor.
Different anchor types ArrayNylon plug (e.g. MN, MQ, MU, MNA, ML, MQL, MB, MBR, MDD). Performance is achieved by the introduction of an expansion component which is screwed or driven into the anchor body. The anchor body is thus firmly blocked against the sides of the drilled hole.
Different anchor types ArrayCavity wall anchor (e.g. MU, MHD-S). The head of the plug is pushed down onto the base material with the screw, and the anchor body is drawn against the interior of the base material by deformation.
Different anchor types ArrayResin Capsule (e.g. MIT, MVA). The anchor consists of a fixing element (male or female rod) and a synthetic-based mortar. Manufactured from 2 components, hardener and resin which when mixed together create the chemical reaction, which hardens to create the fixing by bonding to the base material. Adhesive anchors do not generate stress in the building material.
18  Minimum setting depth
 The indicated setting depths are minimum setting depths and may not be under-run. Non bearing layers as plaster, flagstones, insulating materials etc. do not count as setting depths.
19  Fire protection
Fire protection ArrayFixings, for which fire rated anchors are required, Mungo offers a considerable range of metal-anchors (marked with sign above).

Mungo frame fixings MB-S / MBR-S / MBR-X: These nylon plugs – in connection with mungo Safety Screws – are approved for F90!

MB-S / MBR-S / MBR-X are approved for fixing of curtain walls without any restriction. The expansion part in the building material remains fire-resistant for at least 90 minutes.
20  Corrosion protection
Corrosion protection ArrayAnchors made from galvanic zinc coated steel are used for fixings of fixtures indoors, with the exception of wet rooms. The thickness of the zinc coating is 5 microns. In wet rooms and outdoors mainly in industrial atmosphere and sea proximity fixings should be used made from stainless steel A4 (1.4401 or 1.4571).

Special coating: m3/MUA are provided with a Geomet®-coating.
21  Facade Fixing
 To calculate the number of anchors required to carry the weight of the facade.

1. Calculate the number of anchors required for wind loads.

2. Calculate the number of anchors required to carry the weight of the facade.

3. The larger value from 1 and 2 give the required number of anchors.
22  Concrete uncracked/cracked
Concrete uncracked/cracked Array1) Compression strength: concrete uncracked

2) Tensile strength: concrete cracked

3) reinforcing steel