For medium to large aircraft .40 to .91 size, The set includes horn arms, and clevises for 2-56 rods (F-DB878) / 4-40 rods (F-DB879) with aluminum pivot pins. Arm Accommodates 6-32 screw/rod (F-DB878) 8-32 screw/rod (F-DB879) and clevis fits a 2-56 rod (F-DB878) / 4-40 rod (F-DB879). Both are self-tapping.
Made in USA