A rolled track link may comprise a central portion, a front portion, on a front side of the central portion, having a front portion planar upper surface and a pin bore, and a back portion, on a back side of the central portion, having a back portion planar upper surface that is offset from the front portion planar upper surface by a perpendicular distance along a height of the track link, and having a bushing bore. At each point along a length of the track link, a thickness of the track link is uniform along a width of the track link, other than at holes, including the pin bore and the bushing bore.

Free-cutting steel includes a specific composition, with an A value defined by a following formula (1) satisfying 4.0 or more and 20.0 or less, and remainder having Fe and an unavoidable impurity; and texture with 1000 or more sulfide particles with an equivalent circle diameter of less than 1 m per mm.sup.2, 500 or more sulfide particles with an equivalent circle diameter of 1 m or more and 5 m or less per mm.sup.2, and 1000 or more Pb particles with an equivalent circle diameter of 1 m or less per mm.sup.2, wherein
A value=(Mn+5Cr)/S(1) here, symbols of elements in the formula indicate contents (% by mass) of the elements.

A storage rack can include a first post having a first portion and a second portion secured via a splice assembly. The splice assembly can include a first plate on a first side of the first post, a first fastener arranged through the first plate and the first portion of the first post, and a second fastener arranged through the first plate and the second portion of the first post. The splice assembly can permit replacement of the first portion of the first post without replacement of the second portion of the first post. The storage rack can further include a second post, a bracket secured to the first post, and a brace assembly to secure the first post to the second post. The brace assembly can be arranged between the first post and the second post and secured to the first post via the bracket.

A storage rack can include a first post having a first portion and a second portion secured via a splice assembly. The splice assembly can include a first plate on a first side of the first post, a first fastener arranged through the first plate and the first portion of the first post, and a second fastener arranged through the first plate and the second portion of the first post. The splice assembly can permit replacement of the first portion of the first post without replacement of the second portion of the first post. The storage rack can further include a second post, a bracket secured to the first post, and a brace assembly to secure the first post to the second post. The brace assembly can be arranged between the first post and the second post and secured to the first post via the bracket.