Return is not accepted for this item. NB Linear Systems:SFW12x78.25 3/4 x78.25 Inch Length 3/4 inch Diameter Shaft.
SFW12x78.25", 3/4" Diameter x78.25 inch Long Shaft. NB slide shafts are case hardened with controlled surface hardness and consistent adequate hardness depth. NB controls the surface hardness by using high frequency induction hardening techniques.
The surface hardness for SFW type (AISI 52100 or 1060 shafts) is 60-64 Rc. Diameter: 3/4" Length: 78.25" Pack#12145.