3.2.16.4 TECHNICAL DATA
3.2.16.4.1 LOAD APPLICATION
3.2.16.4.2 NORTH AMERICAN LOAD TABLES
Allowable static loads — Standoff Adaptor with X-BT MR threaded studs 1 , 2 , 3 , 4 , 5
Allowable static loads — Standoff Adaptor with S-BT threaded studs 1 , 2 , 3 , 4 , 5
Load type / fastener
Tension , lb ( kN ) 25 , 50 , 75 , 100 mm
Shear , lb ( kN ) 25 mm Adaptor
Shear , lb ( kN ) 50 mm Adaptor
Shear , lb ( kN ) 75 mm Adaptor
Shear , lb ( kN ) 100 mm Adaptor
Tightening Torque , ft-lb ( Nm ) 6
Standoff Adaptor on X-BT
Nut on Standoff Adaptor
Minimum ASTM A36 steel
Miniumum grade 50 steel
775 ( 3.45 ) 840 ( 3.74 )
175 ( 0.78 ) 205 ( 0.91 )
95 ( 0.42 ) 115 ( 0.51 )
75 ( 0.33 ) 85 ( 0.38 )
50 ( 0.22 ) 60 ( 0.27 )
5.9 ( 8.0 ) 5.9 ( 8.0 )
14.8 ( 20.0 ) 14.8 ( 20.0 )
Notes :
1 . Allowable loads are for MR and MF Standoff Adaptors in conjunction with X-BT MR M8 threaded studs . Moments on the stud beyond those induced by the shear load must be evaluated .
2 . All installation parameters for X-BT MR M8 fasteners must be followed .
3 . Allowable loads based on a minimum safety factor of 5.0 applied to the average ultimate load . 4 . Multiple fasteners are recommended for any attachment . 5 . Fastened material must be considered separately . 6 . When installing nut on standoff adaptor , care should taken to ensure standoff adaptor connection to S-BT does not experience excess torque .
Load type / fastener
Tension , lb ( kN ) 25 , 50 , 75 , 100 mm
Shear , lb ( kN ) 25 mm Adaptor
Shear , lb ( kN ) 50 mm Adaptor
Shear , lb ( kN ) 75 mm Adaptor
Shear , lb ( kN ) 100 mm Adaptor
Tightening Torque , ft-lb ( Nm ) 6
Standoff Adaptor on S-BT
Nut on Standoff Adaptor
Minimum ASTM A36 steel Miniumum grade 50 steel
1 / 8 " - 3 / 16 " Thick
≥ 7 / 32 " Thick
1 / 8 " - 3 / 16 " Thick
≥ 7 / 32 " Thick
225 ( 1.00 ) 405 ( 1.80 ) 295 ( 1.31 ) 520 ( 2.31 )
85 ( 0.38 ) 120 ( 0.53 ) 100 ( 0.44 ) 145 ( 0.64 )
45 ( 0.20 ) 65 ( 0.29 ) 55 ( 0.24 ) 80 ( 0.36 )
35 ( 0.16 ) 50 ( 0.22 ) 40 ( 0.18 ) 60 ( 0.27 )
25 ( 0.11 ) 35 ( 0.16 30 ( 0.13 ) 40 ( 0.18 )
3.6 ( 5.0 ) 5.9 ( 8.0 ) 3.6 ( 5.0 ) 5.9 ( 8.0 )
14.8 ( 20.0 ) 14.8 ( 20.0 ) 14.8 ( 20.0 ) 14.8 ( 20.0 )
Notes : 1 . Allowable loads are for MR and MF Standoff Adaptors in conjunction with S-BT threaded studs .
Moments on the stud beyond those induced by the shear load must be evaluated . 2 . All installation parameters for S-BT fasteners must be followed . 3 . Allowable loads based on a minimum safety factor of 5.0 applied to the average ultimate load . 4 . Multiple fasteners are recommended for any attachment . 5 . Fastened material must be considered separately . 6 . When installing nut on standoff adaptor , care should taken to ensure standoff adaptor connection to
S-BT does not experience excess torque .
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