Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.1 MT Connection Mechanisms
MT-TFB OC
Description
Thread forming bolts for all boxed profiles including MT- 70, MT-80, MT-90, MT-90 H, and MT-100 connection. Thread forming bolt is fastened using the TX-50 or an M17( 11 / 16”) diameter socket. mm( in)
Approvals / Listings
European Technical Assessment ETA-21 / 1017
Corrosion Protection |
Description |
Environmental Conditions |
MT-TFB OC |
Outdoor, low to moderate pollution( C3 / C4- low) |
Ordering Information
Description
Weight Per Piece, lbs( kg)
Quantity Piece( s)
Item No. MT-TFB OC 0.07( 0.03) 250 2272084
Figure 1 – MT Connection Table 104- Allowable Strength Design( ASD) Load Data 1, 2, 3 Tension
Shear lb( kN) lb( kN)
1,650 2,430
( 7.33)
( 10.80)
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 1.
Table 105- Limit State Design( LSD) Load Data 1, 2 Tension
Shear lb( kN) lb( kN)
2,140 3,310
( 9.53)
( 14.73)
1 Maximum resistance factor, φ, for tabulated values is 0.6. 2 See Figure 1.
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