"MATERIAL ALUMINUM,2024,TEMPER T4,QQ-A-225/6; FINISH CHEM FILM,580-0036-000; 1 HOLE DRILLED AND TAPPED FOR,4-40 UNC-2B HELICAL COIL INSERT; 2 HOLES 4-40 UNC-2B X 0.250 IN. MIN D; O/A DIM LG 0.593 IN.,W 0.406 IN.,0.340 HT; 1 SLOT 0.125 IN. W AND 0.125 IN. D"