Hexagon Fractional Die, National Coarse, 5/16-In. x 18 Boss Notch style and size help

Notch style and size help to control depth and amount of adhesive applied

Cross-linked polyethylene pipe approved for radiant in-floor and hydronic heating applications

Heightened emission control system durability*

Easy use for a one person installation

Hexagon Fractional Die, National Coarse, 5/16-In. x 18 Boss Notch style and size help5 16" x 18, national coarse thread, 1" hexagon fractional die, carbon steel, ideal for routine maintenance, repair work & 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.