3.0 MODULAR SUPPORT SYSTEM 3.2.1 MT CONNECTION MECHANISMS MT-TL 3 / 8 " AND 1 / 2 "
Description
Twist lock – for threaded rod to channel connection . MT-TL 3 / 8 and MT-TL 1 / 2 are valid for media fixation only and are not compatible with MT connectors .
Approvals / Listings
City of Los Angeles City of Los Angeles 2020 LABC LARR 26181
European Technical Assessment ETA-21 / 1017
Modular Support Systems Technical Guide , Edition 1
Corrosion Protection
Electro-Galvanized ( EG )
MT-TL 3 / 8 MT-TL 1 / 2
MT-TL 3 / 8 MT-TL 1 / 2
Hot-Dipped Galvanized ( HDG )
MT-TL 3 / 8 OC MT-TL 1 / 2 OC
Ordering Information
Description
Weight Per Piece lbs ( kg )
Quantity Piece ( s )
Item No .
MT-TL 3 / 8 0.07 ( 0.03 ) 50 2273636 MT-TL 3 / 8 OC 0.07 ( 0.03 ) 50 2273637 MT-TL 1 / 2 0.07 ( 0.03 ) 30 2273638 MT-TL 1 / 2 OC 0.07 ( 0.03 ) 30 2273639
MT-TL 3 / 8 OC MT-TL 1 / 2 OC
Figure 3 - MT-TL with Threaded Rod Connection
Table 63 - Allowable Strength Design ( ASD ) Load Data 1 , 2 , 3 , 4
Description
MT-TL 3 / 8 OC
MT-TL 1 / 2 OC
Tension lb ( kN )
Shear lb ( kN )
1,125 |
1,010 |
( 5.00 ) |
( 4.50 ) |
1,125 |
1,010 |
( 5.00 ) |
( 4.50 ) |
1 . Minimum safety factor , Ω , for tabulated values is 2.65 . 2 . Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design
( LRFD ) values . 3 . Loads are for twist-lock mechanism only . Design professional is responsible for checking threaded rod strength . 4 See Figure 3 .
Table 64 - Limit State Design ( LSD ) Load Data 1 , 2 , 3
Description
MT-TL 3 / 8 OC
MT-TL 1 / 2 OC
Tension lb ( kN )
Shear lb ( kN )
1,570 |
1,410 |
( 6.96 ) |
( 6.26 ) |
1,570 |
1,410 |
( 6.96 ) |
( 6.26 ) |
1 . Maximum resistance factor , Φ , for tabulated values is 0.55 . 2 . Loads are for twist-lock mechanism only . Design professional is responsible for checking threaded rod strength . 3 . See Figure 3 .
2023
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