Self-Supporting Treads w/Toe Flange
Self-supporting Treads with Toe Flange for Steel Stairs construction with plate riser.
This tread is designed for bolting to carrier angles - also for bolting through nosing and toe flange to flat-type plate holes risers. Holes in nosing flanges 9/32″ for 1/4″ countersunk flat-heat bolts. The recommended minimum thickness should be followed: for iron - 7/16″ for aluminum - 3/8″. Ribs provided if necessary.