Modular Support Systems Technical Guide, Edition 2
4.0 Additional Hardware
Threaded Rod
Material Specifications
Standard Grade F y, ksi( MPa) F u, ksi( MPa)
Carbon steel per AISI1008 or ASTM A36
A36 36( 248.2) 48( 330.9)
Corrosion Protection
Black: Uncoated Zinc: Galvanized to ASTM F1941-Fe / Zn 5A local layer min 5 µ m
Table 405 – Technical Data and Ordering Information
Description
Quantity( Pack)
Weight( lb / ft)
Weight per Package( lbs)
Diameter( in)
Item No.
MSS-SP-58 1 Allowable Tensile Load at 650 ° F( lbs)
AISC 2
Allowable Tensile Load( lbs)
1 / 4 " x 6’ Threaded Rod( Zinc) 50 0.12 35.7 1 / 4 257963 300 780
1 / 4 " x 10’ Threaded Rod( Zinc) 50 0.12 59.5 1 / 4 309386 300 780 3 / 8” x 6’ Threaded Rod( Zinc) 25 0.3 42.6 3 / 8 257964 730 1,750 3 / 8” x 6’ Threaded Rod( Black) 25 0.3 42.6 3 / 8 257969 730 1,750 3 / 8 " x 10’ Threaded Rod( Zinc) 25 0.3 71.3 3 / 8 309387 730 1,750 3 / 8 " x 10’ Threaded Rod( Black) 25 0.3 71.3 3 / 8 309392 730 1,750 1 / 2 " x 6’ Threaded Rod( Zinc) 12 0.5 38.8 1 / 2 257965 1350 3,110 1 / 2” x 10’ Threaded Rod( Zinc) 12 0.5 61.4 1 / 2 309388 1350 3,110 1 / 2” x 10’ Threaded Rod( Black) 12 0.5 61.4 1 / 2 309393 1350 3,110 5 / 8 " x 10’ Threaded Rod( Zinc) 8 0.84 66.5 5 / 8 309389 2160 4,860
3 / 4” x 10’ Threaded Rod( Zinc) 5 1.2 60 3 / 4 309390 3230 6,700
1 Per MSS-SP-58-2002, the ultimate tensile loads are based on a tensile stress of 50,000 psi multiplied by the threaded rod root area based on coarse thread UNC. 2 AISC Allowable Tensile load = 0.33 x Fu x Anom
AISC Allowable Shear load = 0.17 x Fu x Anom
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