OUR SRT-UG-10 WEAR PADS USE AN ISO SCREW AND HAVE A HIGH MIRROR FINISH ON OUR CARBIDE WHICH ALLOWS BETTER LUBRICITY SO YOU CAN ELIMINATE COATINGS. AFTER YEARS OF TRIALS AND TESTING WE HAVE OUR OWN PROPRIETARY CARBIDE BLANKS WE USE IN OUR WEAR PADS. TI-REX4 COATING CAN BE APPLIED FOR AN ADDED FEE.