Product Technical Guides : US-EN Direct Fastening - Volume 1 Edition 22 | Page 144

3.4.2.2 MATERIAL SPECIFICATIONS
Component
X-FCM-M and X-FCP-F
X-FCM-R and X-FCP-R Material Coating Material Coating
Disk Carbon steel Duplex 1 SAE 316 None Threaded extension Carbon steel Duplex 1 SAE 316 None
Threaded stud
SAE 316 Equivalent or carbon steel
1 Duplex coating is comparable to 45 μm HDG coating . Reference Section 2.3.3.1 for more information .
None SAE 316 Equivalent None
3.4.2.3 TECHNICAL DATA
Allowable static tension loads for X-FCM-M or X-FCM-R with grating , lb ( kN ) 1 , 2 , 4
Fastener description
Rectangular grid barspacing in . ( mm ) Square grid barspacing in . ( mm ) 3 / 4 ( 19 ) 1-3 / 16 ( 30 ) 3 / 4 ( 19 ) 1-3 / 16 ( 30 )
X-FCM-M 180 ( 0.8 ) 180 ( 0.8 ) 405 ( 1.8 ) 3 180 ( 0.8 ) X-FCM-R 315 ( 1.4 ) 225 ( 1.0 ) 405 ( 1.8 ) 3 225 ( 1.0 )
1 Allowable loads represent the capacity of the Hilti Grating System only . The capacity of the grating must be investigated in accordance with accepted design criteria . 2 Unless otherwise noted , load values are limited by plastic deformation of the X-FCM disk . 3 Allowable load value is limited by Allowable load for threaded stud . Reference Sections 3.2.13 , 3.2.14 , 3.2.15 . 4 X-FCM-M and X-FCM-R 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 .
Allowable Static Tension Load for X-FCP-F and X-FCP-R with Checkerplate 1 , 3
Fastener description
X-FCP-F X-FCP-R
Allowable tension loads 2
lb ( kN )
405 ( 1.8 )
1 Allowable loads represent capacity of X-FCP disk or threaded stud . The capacity of checkerplate must be investigated in accordance with accepted design criteria .
2 Allowable load value is limited by the Allowable load for the threaded stud used with the grating disk . 3 X-FCP-F and X-FCP-R are not intended for shear loading .
3.4.2.4 INSTALLATION INSTRUCTIONS
Ø50 [ 1.969 "]
Product Selection Guide for Grating
8.6 [ 0.339 "]
Ø10.3
[ 0.406 "]
5 [ 0.197 "]
16
[ 0.630 "]
19.6 [ 0.768 "]
L
L + 4 [ 0.157 "]
Grating disk
Duplex coated 1
Stainless steel
L
Grating height
in . ( mm ) in . ( mm )
X-FCM-M 25 / 30 X-FCM-R 25 / 30 0.906 ( 23 ) 1 to 1-3 / 16 ( 25-30 )
X-FCM-M 1 -1 / 4 X-FCM-R 1-1 / 4 1.063 ( 27 ) 1-1 / 4 ( 32 )
X-FCM-M 35 / 40 X-FCM-R 35 / 40 1.299 ( 33 ) 1-3 / 8 to 1-9 / 16 ( 35-40 )
X-FCM-M 45 / 50 X-FCM-R 45 / 50 1.693 ( 43 ) 1-3 / 4 to 2 ( 45-50 )
X-ST-GR M8 / 10 P8
Threaded stud
X-BT-GR M8 / 7 SN 8
S-BT-GR M8 / 7 SN6
S-BT-GF M8 / 7 AN6
1 480 hour salt spray test per DIN 50021 and 10 cycles Kesternich test per DIN 50018 / 2.0 ( Comparable to 45 microns HDG coating ).
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