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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.
Hard Core Pins
<!-Hard Core Pins - 2->
Unit of Measure
1 2 

Item #

Dimension G

Dimension T

Dimension R

Length (L)

Drawings

HCP5620 N/A 3/32 in N/A 0.25 in N/A 1/8 in N/A 3 in

HCP5621 N/A 3/32 in N/A 0.25 in N/A 1/8 in N/A 6 in

HCP5622 N/A 3/32 in N/A 0.25 in N/A 1/8 in N/A 10 in

HCP5623 N/A 7/64 in N/A 0.25 in N/A 1/8 in N/A 3 in

HCP5624 N/A 7/64 in N/A 0.25 in N/A 1/8 in N/A 6 in

HCP5625 N/A 7/64 in N/A 0.25 in N/A 1/8 in N/A 10 in

HCP5626 N/A 1/8 in N/A 0.25 in N/A 1/8 in N/A 3 in

HCP5627 N/A 1/8 in N/A 0.25 in N/A 1/8 in N/A 6 in

HCP5628 N/A 9/64 in N/A 0.25 in N/A 1/8 in N/A 3 in

HCP5629 N/A 9/64 in N/A 0.25 in N/A 1/8 in N/A 6 in

HCP5630 N/A 9/64 in N/A 0.25 in N/A 1/8 in N/A 10 in

HCP5631 N/A 5/32 in N/A 9/32 in N/A 5/32 in N/A 3 in

HCP5632 N/A 5/32 in N/A 9/32 in N/A 5/32 in N/A 6 in

HCP5633 N/A 5/32 in N/A 9/32 in N/A 5/32 in N/A 10 in

HCP5634 N/A 11/64 in N/A 11/32 in N/A 3/16 in N/A 3 in

HCP5635 N/A 11/64 in N/A 11/32 in N/A 3/16 in N/A 6 in

HCP5636 N/A 11/64 in N/A 11/32 in N/A 3/16 in N/A 10 in

HCP5637 N/A 3/16 in N/A 3/8 in N/A 3/16 in N/A 3 in

HCP5638 N/A 3/16 in N/A 3/8 in N/A 3/16 in N/A 6 in

HCP5639 N/A 3/16 in N/A 3/8 in N/A 3/16 in N/A 10 in

HCP5640 N/A 13/64 in N/A 3/8 in N/A 3/16 in N/A 3 in

HCP5641 N/A 13/64 in N/A 3/8 in N/A 3/16 in N/A 6 in

HCP5642 N/A 13/64 in N/A 3/8 in N/A 3/16 in N/A 10 in

HCP5643 N/A 7/32 in N/A 13/32 in N/A 3/16 in N/A 3 in

HCP5644 N/A 7/32 in N/A 13/32 in N/A 3/16 in N/A 6 in

HCP5645 N/A 7/32 in N/A 13/32 in N/A 3/16 in N/A 10 in

HCP5646 N/A 1/4 in N/A 7/16 in N/A 3/16 in N/A 3 in

HCP5647 N/A 1/4 in N/A 7/16 in N/A 3/16 in N/A 6 in

HCP5648 N/A 1/4 in N/A 7/16 in N/A 3/16 in N/A 10 in

HCP5649 N/A 9/32 in N/A 7/16 in N/A 1/4 in N/A 3 in

HCP5650 N/A 9/32 in N/A 7/16 in N/A 1/4 in N/A 6 in

HCP5651 N/A 9/32 in N/A 7/16 in N/A 1/4 in N/A 10 in

HCP5652 N/A 5/16 in N/A 0.5 in N/A 1/4 in N/A 3 in

HCP5653 N/A 5/16 in N/A 0.5 in N/A 1/4 in N/A 6 in

HCP5654 N/A 5/16 in N/A 0.5 in N/A 1/4 in N/A 10 in

HCP5655 N/A 11/32 in N/A 9/16 in N/A 1/4 in N/A 3 in

HCP5656 N/A 11/32 in N/A 9/16 in N/A 1/4 in N/A 6 in

HCP5657 N/A 11/32 in N/A 9/16 in N/A 1/4 in N/A 10 in

HCP5658 N/A 3/8 in N/A 5/8 in N/A 1/4 in N/A 3 in

HCP5659 N/A 3/8 in N/A 5/8 in N/A 1/4 in N/A 6 in

HCP5660 N/A 3/8 in N/A 5/8 in N/A 1/4 in N/A 10 in

HCP5661 N/A 13/32 in N/A 11/16 in N/A 1/4 in N/A 3 in

HCP5662 N/A 13/32 in N/A 11/16 in N/A 1/4 in N/A 6 in

HCP5663 N/A 13/32 in N/A 11/16 in N/A 1/4 in N/A 10 in

HCP5664 N/A 7/16 in N/A 11/16 in N/A 1/4 in N/A 3 in

HCP5665 N/A 7/16 in N/A 11/16 in N/A 1/4 in N/A 6 in

HCP5666 N/A 7/16 in N/A 11/16 in N/A 1/4 in N/A 10 in

HCP5667 N/A 15/32 in N/A 3/4 in N/A 1/4 in N/A 3 in

HCP5668 N/A 15/32 in N/A 3/4 in N/A 1/4 in N/A 6 in

HCP5669 N/A 15/32 in N/A 3/4 in N/A 1/4 in N/A 10 in

HCP5670 N/A 1/2 in N/A 3/4 in N/A 1/4 in N/A 3 in

HCP5671 N/A 1/2 in N/A 3/4 in N/A 1/4 in N/A 6 in

HCP5672 N/A 1/2 in N/A 3/4 in N/A 1/4 in N/A 10 in

HCP5673 N/A 9/16 in N/A 13/16 in N/A 1/4 in N/A 6 in

HCP5674 N/A 9/16 in N/A 13/16 in N/A 1/4 in N/A 10 in

HCP5675 N/A 5/8 in N/A 7/8 in N/A 1/4 in N/A 6 in

HCP5676 N/A 5/8 in N/A 7/8 in N/A 1/4 in N/A 10 in

HCP5677 N/A 3/4 in N/A 1 in N/A 1/4 in N/A 6 in

HCP5678 N/A 3/4 in N/A 1 in N/A 1/4 in N/A 10 in

HCP5700 N/A 3/32 in N/A 0.25 in N/A 1/8 in N/A 14 in

HCP5701 N/A 7/64 in N/A 0.25 in N/A 1/8 in N/A 14 in

HCP5702 N/A 1/8 in N/A 0.25 in N/A 1/8 in N/A 14 in

HCP5703 N/A 9/64 in N/A 0.25 in N/A 1/8 in N/A 14 in

HCP5704 N/A 5/32 in N/A 9/32 in N/A 5/32 in N/A 14 in

HCP5705 N/A 11/64 in N/A 11/32 in N/A 3/16 in N/A 14 in

HCP5706 N/A 3/16 in N/A 3/8 in N/A 3/16 in N/A 14 in

HCP5707 N/A 13/64 in N/A 3/8 in N/A 3/16 in N/A 14 in

HCP5708 N/A 7/32 in N/A 13/32 in N/A 3/16 in N/A 14 in

HCP5709 N/A 15/64 in N/A 7/16 in N/A 3/16 in N/A 14 in

HCP5710 N/A 1/4 in N/A 7/16 in N/A 3/16 in N/A 14 in

HCP5711 N/A 1/4 in N/A 7/16 in N/A 3/16 in N/A 18 in

HCP5713 N/A 9/32 in N/A 7/16 in N/A 1/4 in N/A 14 in

HCP5714 N/A 21/64 in N/A 0.5 in N/A 1/4 in N/A 14 in

HCP5715 N/A 11/32 in N/A 9/16 in N/A 1/4 in N/A 14 in

HCP5716 N/A 23/64 in N/A 5/8 in N/A 1/4 in N/A 14 in

HCP5717 N/A 3/8 in N/A 5/8 in N/A 1/4 in N/A 18 in

HCP5718 N/A 13/32 in N/A 11/16 in N/A 1/4 in N/A 14 in

HCP5719 N/A 7/16 in N/A 11/16 in N/A 1/4 in N/A 14 in

HCP5720 N/A 7/16 in N/A 11/16 in N/A 1/4 in N/A 18 in

HCP5721 N/A 29/64 in N/A 11/16 in N/A 1/4 in N/A 14 in

HCP5722 N/A 15/32 in N/A 3/4 in N/A 1/4 in N/A 14 in

HCP5723 N/A 1/2 in N/A 3/4 in N/A 1/4 in N/A 14 in

HCP5724 N/A 1/2 in N/A 3/4 in N/A 1/4 in N/A 18 in

HCP5725 N/A 17/32 in N/A 13/16 in N/A 1/4 in N/A 14 in

HCP5726 N/A 9/16 in N/A 13/16 in N/A 1/4 in N/A 14 in

HCP5727 N/A 5/8 in N/A 7/8 in N/A 1/4 in N/A 14 in

HCP5728 N/A 5/8 in N/A 7/8 in N/A 1/4 in N/A 18 in

HCP5729 N/A 3/4 in N/A 1 in N/A 1/4 in N/A 14 in

HCP5730 N/A 3/4 in N/A 1 in N/A 1/4 in N/A 18 in

HCP5731 N/A 15/16 in N/A 1 in N/A 1/4 in N/A 10 in

HCP5732 N/A 15/16 in N/A 1 in N/A 1/4 in N/A 14 in

HCP5733 N/A 1 in N/A 1-1/4 in N/A 1/4 in N/A 10 in

HCP5734 N/A 1 in N/A 1-1/4 in N/A 1/4 in N/A 14 in

HCP5735 N/A 3/16 in N/A 3/8 in N/A 3/16 in N/A 18 in

HCP5736 N/A 15/64 in N/A 7/16 in N/A 3/16 in N/A 18 in

HCP5737 N/A 7/64 in N/A 0.25 in N/A 1/8 in N/A 18 in

HCP5738 N/A 9/32 in N/A 7/16 in N/A 1/4 in N/A 18 in

HCP5739 N/A 5/16 in N/A 0.5 in N/A 1/4 in N/A 14 in

HCP5740 N/A 5/16 in N/A 0.5 in N/A 1/4 in N/A 18 in

HCP5741 N/A 21/64 in N/A 0.5 in N/A 1/4 in N/A 18 in

Unit of Measure
1 2