Pipe Dies for Machine Die Heads, For Universal Die Heads Nos 504A 711 713 811A 815A 816 817 842, HS SS RH, 11 1 2 NPT no checkout Concealed YKK® brass zipper Full action back Bartacks Concealed YKK® brass zipper Full action back Bartacks at critical stress points Two front Used in a wide variety of applications to prevent threaded fasteners and close fitting parts from locking together Protects during break in and under high static loads Also known as Loctite® Moly Paste Strong and durable pipe dies for use in universal die heads Applicable to a wide variety of die heads A convenient replacement to keep systems functioning for longer