Direct Fastening Technical Guide , Edition 24
X-MGR selection guide for grating
Fastener description |
Powder-actuated fastener |
Grating height in . ( mm ) |
Minimum cross bar spacing 1 in . ( mm ) |
Bearing bar spacing 1 in . ( mm ) |
Maximum bearing bar thickness 1 in . ( mm ) |
Base Steel Thickness in . ( mm ) |
X-MGR-W60 |
|
|
|
|
|
|
None |
1 to 1-1 / 2 ( 25 to 38 ) |
1-3 / 16 ( 30 ) |
|
|
|
1 ( 25 ) |
3 / 16 ( 4.8 ) |
|
1 / 8 to 1 ( 3 to 25 ) |
1 Reference step 2 of the X-MGR Installation Procedures below for more details on bar spacing and thickness requirements .
X-MGR installation procedures for grating 2
1 . Place the grating sections following recognized safety precautions .
2 . Install the X-MGR Fastener per the " Instructions for Use ."
3 . Tighten the screw 1
T rec
= 3.7 - 6.0 lb-ft ( 5 - 8 Nm )
Tightening tool :
• Screw driver with torque release coupling ( TRC )
• 1 / 4 " Allen-type bit
4 . Check
4a . Check that the indentation line on the clip is positioned under the steel flange as shown below .
indentation line
|
a |
b |
c |
X-MGR |
1 " |
≥ 1-3 / 16 " |
≤ 3 / 16 " |
W60 |
( 25 mm ) |
( 30 mm ) |
( 4.8 mm ) |
Do not over tighten : The saddle of the fastener should not be bent .
4b . Check that screw has not been over tightened as shown in step 3 .
1 Tool torque settings are for guideline purposes . Tool wear and temperature as well as battery charge will influence torque characteristics .
2 Installation Instructions For Use ( IFU ) are included with each product package . They can also be viewed or downloaded online at www . hilti . com . Because of the possibility of changes , always verify that downloaded IFU are current when used . Proper installation is critical to achieve full performance . Training is available on request . Contact Hilti Technical Services for applications and conditions not addressed in the IFU .
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