STAUFF Hexagon Head Bolt (Type AS – Heavy Series)
The STAUFF Hexagon Head Bolt (Type AS – Heavy Series) is designed for fastening in hydraulic systems and complies with DIN 931 / 933 and ANSI / ASME B18.2.1. This Heavy Series component, in accordance with DIN 3015, Part 2, is intended exclusively for use with Type DPAL or DPAS cover plates. Available with ISO metric or Unified Coarse (UNC) threads, it offers various material options and ensures high mechanical strength.
The available product codes are: AS-M10x45-W1, AS-M10x60-W1, AS-M10x70-W1, AS-M12x100-W1, AS-M16x130-W1, AS-M20x190-W1, AS-M24x220-W1, AS-M30x300-W1, AS-M30x450-W1, AS-M30x560-W1 (the corresponding UNC variants and W3, W4 and W5 finishes complete the full product family).
STAUFF Hexagon Head Bolts (Type AS – Heavy Series) provide a technical fastening solution specifically designed for pipe support systems in the hydraulic and industrial sectors. Belonging to the Heavy Series and manufactured in strict compliance with DIN 3015, Part 2, these fastening elements ensure reliable securing in installations exposed to high mechanical loads and continuous vibrations.
The engineering design of STAUFF Hexagon Head Bolts (Type AS – Heavy Series) complies with the geometric and dimensional specifications established by DIN 931 and DIN 933. For international markets and systems requiring different standards, the bolts also fully comply with the American ANSI / ASME B18.2.1 requirements. All threaded components are available with two main thread options to ensure maximum versatility: standard ISO metric threads and Unified Coarse (UNC) threads, in accordance with the relevant dimensional tables. The STAUFF size groups range from 3S to 12S, corresponding to DIN Groups 1 to 10.
The material coding system enables accurate selection according to the requirements of the application. The standard base material is uncoated carbon steel, identified by code W1. For applications requiring enhanced corrosion protection, zinc/nickel-plated carbon steel is available under code W3, which is also the standard finish for products supplied to the North American market.
Installation requirements in marine or chemically aggressive environments are met by the stainless steel options. The V2A stainless steel version, manufactured from grades 1.4301 and 1.4305, corresponding to AISI 304 and 303, is available under code W4. For the highest level of resistance, the catalogue includes V4A stainless steel in grades 1.4401 and 1.4571, corresponding to AISI 316 and 316 Ti, identified by material code W5. Additional alternative materials and specific surface finishes can be supplied upon request following consultation with STAUFF.
From an operational perspective, it is essential to note that the nominal dimensions specified for this particular Type AS hexagon head component are valid only when the bolt is used in structural combination with the dedicated Type DPAL or DPAS cover plates. This pairing requirement ensures the uniform distribution of clamping forces across the Heavy Series clamps, thereby maintaining the complete integrity of the hydraulic system.
| Feature | Value |
|---|---|
| Component Type | Hexagon Head Bolt (Type AS) |
| Series | Heavy Series (DIN 3015, Part 2) |
| Standards and Specifications | DIN 931 / 933; ANSI / ASME B18.2.1. |
| Thread Options | ISO Metric; Unified Coarse (UNC) |
| Installation Compatibility | Valid only with Type DPAL or DPAS Cover Plates |
| Material W1 | Carbon steel, uncoated |
| Material W3 | Zinc/nickel-plated carbon steel (North American standard) |
| Material W4 | V2A Stainless Steel 1.4301 / 1.4305 (AISI 304 / 303) |
| Material W5 | V4A Stainless Steel 1.4401 / 1.4571 (AISI 316 / 316 Ti) |
| Order Code (Metric W1 Version) | STAUFF Group | DIN Group | Metric Thread (G x L) | Alternative UNC Thread |
|---|---|---|---|---|
| AS-M10x45-W1 | 3S | 1 | M10 x 45 | 3/8–16 UNC x 1-3/4 |
| AS-M10x60-W1 | 4S | 2 | M10 x 60 | 3/8–16 UNC x 2-1/4 |
| AS-M10x70-W1 | 5S | 3 | M10 x 70 | 3/8–16 UNC x 2-3/4 |
| AS-M12x100-W1 | 6S | 4 | M12 x 100 | 7/16–14 UNC x 4 |
| AS-M16x130-W1 | 7S | 5 | M16 x 130 | 5/8–11 UNC x 5-1/4 |
| AS-M20x190-W1 | 8S | 6 | M20 x 190 | 3/4–10 UNC x 7-1/2 |
| AS-M24x220-W1 | 9S | 7 | M24 x 220 | 7/8–9 UNC x 8-3/4 |
| AS-M30x300-W1 | 10S | 8 | M30 x 300 | 1-1/8–7 UNC x 12 |
| AS-M30x450-W1 | 11S | 9 | M30 x 450 | 1-1/4–7 UNC x 17-1/2 |
| AS-M30x560-W1 | 12S | 10 | M30 x 560 | 1-1/4–7 UNC x 22 |