STRAIGHT TYPE; CARBON STEEL MATERIAL; 7/8 INCH NOMINAL DIAMETER; UNC THREAD SERIES; 7/8 NOMINAL DIAMETER - FRACTIONAL; .875 NOMINAL DIAMETER - DECIMAL; M-CO[R], O-STRUT[R] BRAND; LOAD RATING 3770 LB; STANDARD AND SPECIFICATION FINISH ANSI/ASTM B633-78