JBF National hard core-core pins come manufactured from hot forged and annealed steel, and feature a ground finish. To ensure the highest quality, JBF National hard core pins are laser inspected throughout the entire manufacturing process. Hard core pin through hardness is 50/55 RC. Please see component diagram below.
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Dimension G (in)

Dimension T (in)

Dimension R (in)

Length (L) (in)

Item #

Dimension G

Dimension T

Dimension R

Length (L)

Drawings

N/A 11/32 in N/A 9/16 in N/A 1/4 in N/A 18 in

N/A 23/64 in N/A 5/8 in N/A 1/4 in N/A 18 in

N/A 13/32 in N/A 11/16 in N/A 1/4 in N/A 18 in

N/A 29/64 in N/A 11/16 in N/A 1/4 in N/A 18 in

N/A 15/32 in N/A 3/4 in N/A 1/4 in N/A 18 in

N/A 17/32 in N/A 13/16 in N/A 1/4 in N/A 18 in

N/A 9/16 in N/A 13/16 in N/A 1/4 in N/A 18 in

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