Grating Clip, Close Mesh, 316 Stainless Steel, Finish -, Fits Bearing Bar Height 1 3/4 in, Fits Bearing Bar Spacing 3/8 to 3/4 in, Fits Support Thickness 1/4 to 3/4 in, Fits Grating Opening Size 1 in, For Screw Size 1/4 in, Meets/Exceeds ASTM A-240, Includes 1/4 In.-20 Hex Head Cap Screw, Package Quantity 50