STAUFF Hexagon Head Bolt AS
The STAUFF Hexagon Head Bolt AS is a highly reliable fastening component manufactured from zinc/nickel-plated carbon steel (W3). Compliant with DIN 931 / 933 and ANSI / ASME B18.2.1 standards, it is designed for secure fastening with a weld plate, rail nut or panel mounting. The variants are available with ISO Metric or Unified Coarse UNC threads, ensuring maximum versatility according to installation requirements.
The available product codes are: AS-M8x25-W3, AS-U5/16-18×1-W3, AS-M8x28-W3, AS-U5/16-18×1-1/8-W3, AS-M8x45-W3, AS-U5/16-18×1-3/4-W3, AS-M8x30-W3, AS-U5/16-18×1-1/4-W3, AS-M8x35-W3, AS-U5/16-18×1-3/8-W3, AS-M8x50-W3, AS-U5/16-18×2-W3.
The STAUFF Hexagon Head Bolt AS is a mechanical fastening element designed to ensure high performance in Light Series hydraulic fastening systems. The component is manufactured according to strict construction specifications compliant with the international DIN 931 / 933 or ANSI / ASME B18.2.1 standards. The standard construction material is identified by code W3, indicating zinc/nickel-plated carbon steel. This finish provides optimum protection against oxidation and wear in demanding industrial environments. To meet specific design requirements, alternative construction materials and surface finishes are available from the manufacturer upon request.
The configuration options of the STAUFF Hexagon Head Bolt AS vary according to the installation type required by the system. The technical document identifies two main mounting categories, each with specific shank lengths to suit the STAUFF size groups (1, 2, 3 and 1D, 2D, 3D):
The first configuration concerns mounting with the Type LBBU-SP Weld Plate (Type of Mounting SP) or the SM-2-50 Hexagon Rail Nut (Type of Mounting SM). In this variant, the bolt lengths are optimised for use with these base components, ensuring stable structural fastening.
The second configuration is intended for panel mounting (Type of Mounting PM), without the use of a weld plate or rail nut. The dimensional values (G x L) in this category are increased to compensate for the absence of intermediate components, allowing direct fastening to pre-drilled surfaces.
The technical range of AS fastening components includes two thread standards to ensure maximum international compatibility. All threaded parts are available with either ISO Metric thread (for example M8) or Unified Coarse UNC thread (for example 5/16-18 UNC). The product code designation directly reflects the thread size. In addition to the standard M8 and 5/16-18 UNC sizes used for the main dimensional groups, the range can be extended upon request with alternative sizes such as M6 and 1/4-20 UNC, ensuring flexibility for integration into different circuits and configurations.
| Feature | Value |
|---|---|
| Model Designation | Hexagon Head Bolt Type AS |
| Reference Standards | DIN 931 / 933 or ANSI / ASME B18.2.1 |
| Standard Material (Code W3) | Zinc/Nickel-Plated Carbon Steel |
| Thread Types (Standard) | ISO Metric (M8) / Unified Coarse Thread UNC (5/16-18 UNC) |
| Thread Types (Alternative on Request) | M6 / 1/4-20 UNC |
| Type SP / SM Mounting | For LBBU-SP Weld Plate or SM-2-50 Rail Nut |
| Type PM Mounting | For panel mounting (without plate or nut) |
| Compatible STAUFF Groups | 1, 2, 3, 1D, 2D, 3D |
| Model (Product Code) | STAUFF Group | Mounting Type | Thread (G x L) |
|---|---|---|---|
| AS-M8x25-W3 | 1 / 1D | SP / SM | M8 x 25 |
| AS-U5/16-18×1-W3 | 1 / 1D | SP / SM | 5/16-18 UNC x 1 |
| AS-M8x28-W3 | 2 / 2D | SP / SM | M8 x 28 |
| AS-U5/16-18×1-1/8-W3 | 2 / 2D | SP / SM | 5/16-18 UNC x 1-1/8 |
| AS-M8x45-W3 | 3 / 3D | SP / SM | M8 x 45 |
| AS-U5/16-18×1-3/4-W3 | 3 / 3D | SP / SM | 5/16-18 UNC x 1-3/4 |
| AS-M8x30-W3 | 1 / 1D | PM | M8 x 30 |
| AS-U5/16-18×1-1/4-W3 | 1 / 1D | PM | 5/16-18 UNC x 1-1/4 |
| AS-M8x35-W3 | 2 / 2D | PM | M8 x 35 |
| AS-U5/16-18×1-3/8-W3 | 2 / 2D | PM | 5/16-18 UNC x 1-3/8 |
| AS-M8x50-W3 | 3 / 3D | PM | M8 x 50 |
| AS-U5/16-18×2-W3 | 3 / 3D | PM | 5/16-18 UNC x 2 |