Fiberglass Grating Clip Material 316 Stainless Steel Compatible Bearing Bar Spacing 1 in Minimum Compatible Grating Opening Size 3/4 in Compatible Screw Size 3/8 in Maximum Compatible Bearing Bar Height 1 in Compatible Support Thickness 1/4 in Product Type Clip Only Finish Unfinished Standards ASTM-A-240-16A ASTM-A-480-16B ASTM-A-666-15 Includes Nut and Bolt Application Fastens Grating Maximum Compatible Grating Opening Size 3/4 in Minimum Compatible Bearing Bar Height 1 in