00 Contents - Hilti Svenska AB

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Tips for users DX fastenings on concrete Fault Nail is bending Base material is spalling Damaged nail head Cause Possible remedial measures ■ Hard and/or large aggregate in concrete ■ Rebar close to surface of concrete ■ Hard surface (steel) ■ High strength concrete ■ Hard and/or large aggregate in concrete ■ Old concrete ■ Too much driving power ■ Wrong piston used ■ Damaged piston) ■ Use shorter nail ■ Use DX-Kwik (predrill) ■ Use co-acting principle/fastener guide ■ Use stepped shank nail DAK ■ Change cartridge ■ Stud application: Use spall stop X-460- F8SS / - F10SS ■ Nail application: Use shorter nail Use DX-Kwik (predrill) Use DAK16 (for highstrength precast concrete) ■ Reduce power setting ■ Use lighter cartridge ■ Check nail-piston-combination ■ Change piston Wrong pistons can cause all above faults: Match pistons to nails! Fastener Piston Piston head X-U, X-DNI, X-EDNI, X-ZF, X-CF, DAK16 Use piston X-460-P8 X-AL-H Use piston X-L460-P8A 1.86 11 / 2007
DX fastenings on steel Fault Nail does not penetrate surface Nail does not hold in base material ■ Too little driving power ■ Application limit exceeded (very hard surface) ■ Unsuitable system Tips for users Cause Possible remedial measures ■ Excess driving energy in thin steel base material (3 to mm steel) Nail is breaking ■ Too little driving power ■ Application limit exceeded (very hard surface) ■ Try higher power setting or heavier cartridge ■ Short nail application: Try DAK 16 P8 (TH) or X-ZFAH 16 S8 TH ■ Long nail application: Try DAA or X-AL-H ■ Use co-acting principle/fastener guide ■ Switch to heavy system like DX750, DX600N ■ Try different power setting or different cartridge ■ Try ENP2K or X-EDNK22 THQ 12 for fastening sheet metal ■ Try higher power setting or heavier cartridge ■ Use shorter nail ■ Use X-ENP19 ■ Use stronger nail (X-...-H) ■ Use stepped shank nail: DAK 16 P8 (TH) or X-ZFAH 16 S8 TH 11 / 2007 1.87
Page 1 and 2:
Principles and technique Introducti
Page 3 and 4:
Introduction Introduction 1 1.1 Def
Page 5 and 6:
? + ? + = 2.4 kN + + = 2.4 kN A com
Page 7 and 8:
Hilti direct fastening systems are
Page 9 and 10:
The direct fastening system Introdu
Page 11 and 12:
2.1 Fasteners The direct fastening
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Stainless steel fasteners Hilti int
Page 15 and 16:
Hilti Tools All Hilti tools supplie
Page 17 and 18:
The direct fastening system DIN 726
Page 19 and 20:
Health and safety Introduction 1 Th
Page 21 and 22:
Drop-firing safety The drop firing
Page 23 and 24:
ystanders. Safety tests with carton
Page 25 and 26:
Quality of installation The use of
Page 27 and 28:
Corrosion Introduction 1 The direct
Page 29 and 30:
2. Contact corrosion Corrosion is a
Page 31 and 32:
Hilti X-CR / X-BT stainless steel f
Page 33 and 34:
Steel base material Introduction 1
Page 35 and 36: Fusing (welding) Complete fusing of
Page 37 and 38: Guide values for the depth of penet
Page 39 and 40: Steel base material Surface of the
Page 41 and 42: Steel base material Compressive str
Page 43 and 44: 5.5 Thin steel base material Steel
Page 45 and 46: Failure of the base steel If the th
Page 47 and 48: Pull-over test specimen at test beg
Page 49 and 50: X-CRM8-15-12 (stainless steel faste
Page 51 and 52: Steel base material 5.7 Effect of f
Page 53 and 54: 5.9 Effect on the fatigue strength
Page 55 and 56: Concrete base material Introduction
Page 57 and 58: Clamping The compressibility of con
Page 59 and 60: Concrete parameter The concrete par
Page 61 and 62: Edge distance and fastener spacing
Page 63 and 64: Masonry base material Introduction
Page 65 and 66: Temperature effects Introduction 1
Page 67 and 68: Base steel: S355K2G3 h = 25 mm fy =
Page 69 and 70: 8.3 Fire rating of fastenings to st
Page 71 and 72: Temperature effects 8.4 Fire rating
Page 73 and 74: Design concepts Introduction 1 The
Page 75 and 76: The characteristic strength is defi
Page 77 and 78: Determination of technical data Int
Page 79 and 80: 10.2 Profile sheet fastenings Deter
Page 81 and 82: Calculation method The calculation
Page 83 and 84: Determination of technical data The
Page 85: DX fastenings on concrete Fault Fas
Page 89 and 90: Approval Listing Summary of approva
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00 Contents - Hilti Svenska AB

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