Columbia Manufacturing - Forged Steel Extension Links
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Columbia MFG, LLC |
Forged Steel Extension Links
Material Specifications
Forged steel meeting the requirements of ASTM 668, latest revision; AISI 1040/1045 carbon steelQuenched and tempered, final hardness 212/248 BHN.
Magnetic particle inspected.
Clevis Bolt
3/4" clevis pinwith cotter pin is standard for all clevis end units.Optional Clevis Bolt
3/4" x 3 1/2" hex head bolt, 3/4" hex nut and 3/16" x 1 1/4" brass cotter pin is available - designate with suffix BNC for this option.Bolts shall meet requirement of ASTM1-325, latest revision.
Finish
All steel shall be hot dipped galvanized per ASTM A153, latest revision.Tolerances
Lengths 36" and less +/_ 3/8"Lengths over 36", +/- 3/4"
Catalog
NumberFigure
NumberDimensions (inches) Ultimate
Strength
lbsWeight (lbs)
per 100 PCSA B C D E F G H 1112 1 12" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 425 1118 1 18" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 500 1124 1 24" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 575 1130 1 30" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 650 1136 1 36" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 725 1142 1 42" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 800 1148 1 48" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 875 2112 2 12" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 425 2118 2 18" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 500 2124 2 24" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 575 2130 2 30" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 650 2136 2 36" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 725 2142 2 42" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 800 2148 2 48" 1 3/16" 1 3/4" 2" - - - 3/4" 30,000 875 3112 3 12" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 340 3118 3 18" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 415 3124 3 24" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 490 3130 3 30" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 565 3136 3 36" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 640 3142 3 42" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 715 3148 3 48" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 790 4112 4 12" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 340 4118 4 18" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 415 4124 4 24" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 490 4130 4 30" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 565 4136 4 36" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 640 4142 4 42" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 715 4148 4 48" 1 3/16" 1 3/4" 2" 2" 11/2" 5/8" 3/4" 30,000 790
Figure 1
Clevis-Clevis
Figure 2
Clevis-Clevis 90º
Figure 3
Clevis-Eye
Figure 4
Clevis-Eye 90º
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This page revised 08/14/18