Ordering Description Product number Description: Tweco FGC-300 Ground Clamp (300A, thru 3/0) Copper Alloy Product number: 9205-1330 Description: Tweco SGC-500 Ground Clamp (500A) Steel Product number: 9205-1250 Description: Tweco SGC-300 Ground Clamp (300A) Steel Product number: 9205-1230 Description: Tweco GC-300 Ground Clamp (300A, thru 3/0) Copper Alloy, Clamshell Product number: 9205-1130 Description: Tweco GC-300MC Ground Clamp (300A, thru 3/0) Copper Alloy, 24EA/CTN Product number: 9205-1131 Description: Tweco GC-500 Ground Clamp (500A, thru 4/0) Copper Alloy Product number: 9205-1150 Description: Tweco GC-200 Ground Clamp (200A, thru 1/0) Copper Alloy Product number: 9205-1120