Modular Supports System Product Technical Guide June 2026 | Page 119

Modular Support Systems Technical Guide, Edition 2
3.0 Modular Support System
3.2.3 MT System Connectors
MT-C-GL A OC
Description
Adjustable connector for MT-80( long side), MT-90, MT-90H flat side, and MT-100 girders.
Material Specifications
Description
Standard
Grade
F y, ksi
( MPa)
F u, ksi
( MPa)
MT-C-GL A OC
( GB / T 1591)
( Q355 B)
51.49
( 355)
68.17
( 470)
MT-C-GL A US OC ASTM A1011 1
HSLAS-F Grade
50 MOD 1
51.49
( 355)
68.17
( 470)
1 ASTM A1011 HSLAS Grade 50 MOD is an enhanced version of ASTM A1011 HSLAS Grade
50 with Fu >= 470MPa and Fy >= 355MPa.
Corrosion Protection
Description
Environmental Conditions MT-C-GL A OC Outdoor, low to moderate pollution( C3 / C4- low) MT-C-GL A US OC Outdoor, low to moderate pollution( C3 / C4- low)
Ordering Information
Description
Weight Per Piece, lbs( kg)
Quantity Piece( s)
Item No. MT-C-GL A OC 2.53( 1.15) 10 2272069 MT-C-GL A US OC 2.53( 1.15) 10 2487448
mm( in)
Figure 60 – MT Single Angle Connection
Table 222- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fx Fy
Fz
lb( kN)
lb( kN)
lb( kN)
3,005
2,620
3,005
( 13.36)
( 11.66)
( 13.36)
1 Minimum Safety Factor, Ω, for tabulated values is 2.13.
2 Multiply tabulated values by 1.5 to obtain minimum Load and Resistance Factor Design( LRFD)
values.
3 See Figure 60.
Table 223- Limit State Design( LSD) Load Data 1, 2
B. MT-80( long side)/ 90 / 100( short side) Figure 61 – MT Double Angle Connection
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
4,495( 20.00)
3,935( 17.52)
4,495( 20.00)
1 Maximum Resistance Factor, φ, for tabulated values is 0.52.
2 See Figure 60.
Table 224- Allowable Strength Design( ASD) Load Data 1, 2, 3
Fx Fy
lb( kN)
lb( kN)
lb( kN)
lb ft( kN m)
6,565
5,275
5,620
1,320
( 29.20)
( 23.47)
( 24.99)
( 1.79)
1 Minimum Safety Factor, Ω, for tabulated values is 2.2.
2 Multiply tabulated values by 1.5 to obtain minimum LRFD values.
3 See Figure 61.
Table 225- Limit State Design( LSD) Load Data 1, 2
Fz My
Fx lb( kN)
Fy lb( kN)
Fz lb( kN)
My lb ft( kN m)
8,530( 37.96)
7,635( 33.97)
7,970( 35.47)
1,870( 2.54)
1 Maximum Resistance Factor, φ, for tabulated values is 0.65.
2 See Figure 61.
A. MT-80( long side)/ 90 / 100( short side)
118 Modular Support Systems Technical Guide Edition 2 | Installation Systems Hilti, Inc. 1-800-879-8000 | en español 1-800-879-5000 | www. hilti. com | Hilti( Canada) Corporation | 1-800-363-4458 | www. hilti. ca