Hexagon Die, 3/8-In. x 18 NPT Origin Point Brands It has a recessed double

It has a recessed double contact ends

Follow sound management practices and disease and sanitation control measures

is vented to allow the escape of heat & gases & is resistant to battery acid

Feature double barbs to maintain fastening and provide easy driving

Home Defense Insect Killer for Indoor & Perimeter RTU Trigger

Hexagon Die, 3/8-In. x 18 NPT Origin Point Brands It has a recessed double3 8" x 18 national pipe taper thread, 1 7 16" across, hexagon die, carbon steel, ideal for plumbing, air applications & for rethreading where high accuracy & tolerance thread is not critical, recommended for use with hexagon die stock, die can be used with a wrench or socket when space is limited, designed for hand threading work in a variety of materials.