Grating Clip G-Clip Carbon Steel Finish Galvanized Fits Bearing Bar Height 1 3/4 in Fits Bearing Bar Spacing 1 in Fits Support Thickness 3/4 to 1-1/4 in Fits Grating Opening Size 1 in For Screw Size 1/4 in Meets/Exceeds ASTM B-695 Includes 1/4 In.-20 Hex Head Cap Screw Package Quantity 50