Esket

Esket is a term used in construction and civil engineering to refer to a type of expansion bolt and anchor system designed for securing structural elements within concrete. It is commonly abbreviated as ESKET, a designation that indicates the bolt’s specific gauge, material composition, and installation profile. The system typically consists of a steel expansion nut, a self-tapping threaded insert, and a cover plate or wedge that allows the anchor to engage with the surrounding concrete after drilling a hole.

The design of an esket expansion bolt relies on the principle of a tensile load applied to the bolt causing it to expand radially within the drilled cavity. This expansion creates a high friction surface that resists pull‑out forces, making eskets suitable for applications such as securing rebar sleeves, retaining wall brackets, and anchoring steel columns in high‑rise construction. Engineers choose specific esket sizes based on load calculations, concrete strength, and environmental conditions. Common materials include high‑strength alloy steel or stainless steel, providing corrosion resistance in marine or industrial settings.

Standard practices for installing eskets involve cleaner drilling techniques to achieve a smooth bore, proper selection of bolt length to prevent over‑depth penetration, and the use of protective coatings to inhibit rust. Installation quality is typically verified through pull‑out testing that compares measured force requirements against manufacturer‑specifed tables.

While esket anchors are not as widely marketed as other expansion bolt brands, technical catalogs from several manufacturers provide guidelines for load rating, installation spacing, and detailing. In structural code references, eskets are often classified under “Type B” expansion anchorage systems. They are featured in design manuals for both new construction and retrofit projects where high-strength, reliable anchorage is required.