Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.1 MT Connection Mechanisms
MT-CTAB
Description
Screw for strut connection. MT-CTAB screw is fastened into the M10 Twist Lock or directly to the channel using the TX-50 or a 17 mm( 11 / 16) diameter socket.
Material Specifications
Standard 1 Grade 1 F y, ksi( MPa) F u, ksi( MPa)
EN-10025-2 S235 JR 34.08( 235) 53.66( 370)
1 Mechanical properties of EN-10025-2 Grade S235 JR meet or exceed the mechanical properties of ASTM A1011 SS Grade 33.
Corrosion Protection
Description MT-CTAB
Environmental Conditions
Dry indoor conditions( C1) Indoor with temporary condensation( C2)
MT-CTAB OC Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information
Description
Weight Per Piece, lbs( kg)
Quantity Piece( s)
Item No. MT-CTAB 0.11( 0.05) 100 2332797 MT-CTAB OC 0.11( 0.05) 100 2332788 mm( in)
Figure 5 – MT Channel Connection
Table 112- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fx lb( kN) |
Fy lb( kN) |
Fz lb( kN) |
415( 1.86) |
505( 2.26) |
1,405( 6.25) |
1 Minimum safety factor, Ω, for tabulated values is 2.3. |
2 Multiply tabulated values by 1.5 to obtain minimum Load and |
Resistance Factor Design( LRFD) values. |
3 See Figure 5. |
Table 113- Limit State Design( LSD) Load Data 1, 2
A. |
MT-30 / 50 / 60 |
B. |
MT-40D |
Figure 6 – MT Channel Connection
Fx lb( kN) |
Fy lb( kN) |
Fz lb( kN) |
525( 2.35) |
810( 3.61) |
1,850( 8.23) |
1 Maximum resistance factor, φ, for tabulated values is 0.75. |
2 See Figure 5. |
Table 114- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fx lb( kN) |
Fy lb( kN) |
Fz lb( kN) |
505( 2.26) |
505( 2.26) |
1,405( 6.25) |
1 Minimum safety factor, Ω, for tabulated values is 2.3. |
2 Multiply tabulated values by 1.5 to obtain minimum LRFD values. |
3 See Figure 6. |
Table 115- Limit State Design( LSD) Load Data 1, 2
A. |
MT-30 / 50 / 60 |
B. |
MT-50 / 60 |
Fx lb( kN) |
Fy lb( kN) |
Fz lb( kN) |
810( 3.61) |
810( 3.61) |
1,850( 8.23) |
1 Maximum resistance factor, φ, for tabulated values is 0.75. |
2 See Figure 6. |
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