T-Bar Sash Cramp 6FT(1800mm - 72) Cast Iron Sliding Adjustable Clamps HD Jaws. Cast iron heads & feet - These are heavy duty (Not like others light duty). Cast iron jaws with steel section bar which is suitable for heavy duty work.Painted finish with chrome plated handle screw and pin for corrosion protection. We are VAT registered and VAT invoice will be provided upon request. It's OK to change the information before we post your order.