BRAND NEW IN BOX FULL SURFACE BI-FOLDING HEAVY DUTY GEARED HINGE COMERCIAL GRADE 83″ DARK BRONZE GHHD057BI-FOLDING FULL SURFACE APPLICATIONUL LISTEDHIGH FREQUENCY TO HEAVY MEDIUM FREQUENCY DOORSMAXIMUM DOOR WEIGHT 450 LBSFLUSH MOUNT WITH NO INSETMEETS OR EXCEEDS ANSI STANDARDS FOR HINGESNON-HANDEDFASTENERS INCLUDED (#12 X 3/4 PHP SELF DRILLING, SEX BOLTS) FOR METAL DOORS AND FRAMESUSE A COMBINATION OF ANY #12 PAN HEAD SCREWS FOR MULTIPLE APPLICATIONSCUT TO SIZE: UP TO 3″ FROM EACH END OF HINGE FOR A TOTAL OF 6″CUT TO ANY SIZE WITH BASIC ASSEMBLY / FABRICATION SKILLSSECURITY SCREW COVERUSE SEX BOLTS / NON-REMOVABLE SCREWS FOR MAX SECURITYMINIMUM 1 1/32″ FLAT SURFACE NEEDED TO MOUNT HINGE