- Distrito de Yongnian Ciudad de Handan, provincia de Hebei
- Nancy@mj-anchor.com
- +86 18131004569
The Duojia Galvanized Hit Anchor, also known in the industry as a Ancla Drop-In, is a heavy-duty, impact-set expansion anchor designed for creating a permanent and reliable female threaded socket in solid base materials like concrete. Characterized by its unique internal “ball” plug and robust carbon steel body, this anchor is installed quickly by striking it with a hammer and setting tool. The product features a Yellow Zinc Plated (YZP) finish, providing good corrosion and rust resistance for a wide range of indoor industrial, construction, and infrastructure applications.
This product is a female-threaded expansion anchor. This means the anchor itself is a socket that is permanently set into the concrete. A separate, correctly sized machine bolt or threaded rod is then screwed into the anchor to fasten a fixture. This is different from male-threaded anchors (like wedge anchors or sleeve anchors) where the stud is part of the anchor itself. The “ball” mentioned in the product name refers to the internal expansion plug that is driven down to set the anchor.
The anchor’s holding power comes from the friction created by its expansion against the walls of the drilled hole.
When the plug is driven down into the tapered body with force, it causes the slotted sections of the anchor body to expand outwards, pressing firmly against the surrounding concrete.
| Parameter Item | Specification Description |
|---|---|
| Nombre del producto | Hit Anchor Ball-YZP |
| Marca | Duojia |
| Lugar de origen | Hebei, China |
| Material | Acero al carbono |
| Tratamiento de superficies | Yellow Zinc Plated (YZP) |
| Available Sizes | M6-M20 (This refers to the internal thread size) |
| Strength Grades | 4.8, 8.8, 10.9, 12.9 etc. |
| Sistema de medición | Métrica |
| Aplicación | Heavy Industry, General Industry, Construction |
| Certifications | ISO9001, ISO14001, ISO45001, SGS |
| Packaging Options | Small Pack + Carton + Pallet; Bag/Box with Pallet |
The Hit Anchor is a versatile fastener used extensively in construction and industrial maintenance for medium- to heavy-duty loads.



