Grating Clip G-Clip 316 Stainless Steel Finish - Fits Bearing Bar Height 1 3/4 in Fits Bearing Bar Spacing 3/4 to 1 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