Product Technical Guides : US-EN Direct Fastening - Volume 1 Edition 22 | Page 145

Direct Fastening Technical Guide , Edition 24

3.4.3 X-GR AND X-MGR GRATING FASTENING SYSTEMS

3.4.3.1 PRODUCT DESCRIPTION

Hilti provides a wide range of solutions for the attachment of grating . These solutions allow attachment of different grating heights , have HDG * equivalent corrosion resistance and provide the ability to remove the grating .

Product features :

• Grating fastened in place

• Topside only access needed

• Removable and reusable **

• Corrosion resistance of HDG *

• Non-trip profile

• No electrical or pneumatic power required

* Refer to material specifications below for more details on coatings . ** Only saddle clip and screw parts of X-GR and X-MGR grating fastening systems fasteners can be removed and reused .

3.4.3.2 MATERIAL SPECIFICATIONS

System component

X-GR

X-MGR

Material Coating 1 Material Coating 1

X-GR Grating Fastening System

Saddle clip Carbon steel Duplex 2 Carbon steel 65 μm zinc

Powder-actuated fastener CrMnMo alloy 4 8 μm zinc 3 – – Screw Carbon steel Duplex 2 Carbon steel 60 μm zinc Nut – – Carbon steel 45 μm zinc

Nut holder – – Stainless steel –

1 Reference Section 2.3.3.1 for more information on coatings . 2 Duplex coating is comparable to 45 µ m HDG coating . Reference Section 2.3.3.1 for more information . 3 Zinc coating on X-GR stainless steel powder-actuated fasteners are for improved driving performance during installation . 4 Equivalent to grade 316 stainless steel

3.4.3.3 TECHNICAL DATA

Allowable static tension loads for Hilti grating fastening systems 1 , 2 , 3

X-MGR Grating Fastening System

X-GR 1 to 1-1 / 4 ( 25 to 32 ) 3 / 16 to 1 / 2 5 ( 4 to 12 ) 180 ( 0.8 ) X-MGR ≥ 1-3 / 16 ( ≥ 30 ) 1 / 8 to 1 ( 3 to 25 ) 135 ( 0.6 )

1 Allowable loads represent the static capacity of the Hilti Grating System only . The capacity of the grating must be investigated in accordance with accepted design criteria . 2 Allowable load values are limited by plastic deformation of the X-GR or X-MGR saddle clip . 3 X-GR and X-MGR Grating Fastening Systems resist shear by friction and are not suitable for explicit shear load designs , ( e . g . diaphragms ). Depending on surface characteristics , shear loads of up to 65 lb ( 0.3 kN ) will not result in permanent deformation . Therefore , small unexpected shear loads can generally be accommodated without damage . 4 Reference installation instructions for more details regarding bearing and cross bar dimensions . 5 Fastening in base material thicknesses beyond 1 / 2 " ( 12 mm ) is possible for A36 and Grade 40 steels . Site testing required .

* For application limits and cartridge selection of X-GR grating fastening system , please refer to Section 3.2.4

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