Standard Underpinning Bracket The foundations resting on unstable soil may shift and settle. To correct this problem, helical piers s are screwed into stable soils and attached to the foundation with brackets. The underpinning brackets are utilized to support the weight of the structure. It is made from the highest quality steel, and is designed to last for years even under the most strenuous working conditions. Besides our most popular Standard underpinning bracketsï¼?we can also manufacture several other types of brackets and connections. Screw Anchor Brackets Beam Support Bracket Slab Bracket Light Duty Bracket