STAUFF Heavy Series Hexagon Head Bolt Type AS
STAUFF Heavy Series Hexagon Head Bolts Type AS are specifically designed for use with the DPAD Cover Plate in hydraulic fastening systems. Compliant with DIN 931/933 and ANSI/ASME B18.2.1 standards, they are available for Groups 4S and 5S with ISO Metric and UNC threads. Manufactured from uncoated or zinc/nickel-plated carbon steel and V2A or V4A stainless steel, they ensure high reliability. The available product codes are: AS-M10x60-W1, AS-3/8-16UNCx2-1/4-W3, AS-M10x70-W1, AS-3/8-16UNCx2-3/4-W3.
STAUFF Heavy Series Hexagon Head Bolts Type AS are a fundamental component within the Heavy Twin Series range for hydraulic applications and Fluid Contamination Control. Designed to provide robust and durable fastening, these bolts are manufactured in strict compliance with international technical standards DIN 931/933 and ANSI/ASME B18.2.1. The engineering of this specific fastening element requires that the stated dimensions are applicable and certified exclusively when the bolt is used in combination with the dedicated DPAD Cover Plate. The coordinated use of these components ensures correct assembly and maintains the intended mechanical performance of Heavy Series systems.
The STAUFF Heavy Series Hexagon Head Bolt Type AS range is structured to meet the requirements of two specific STAUFF mounting groups: Group 4S and Group 5S. In terms of thread options, the components are available with both ISO Metric Thread and Unified Coarse Thread (UNC), ensuring maximum integration versatility. Specifically, for Group 4S, the supported thread dimensions (Thread G x L) are M10x60 and 3/8-16 UNC x 2-1/4. For Group 5S, the dimensional specifications are adapted to accommodate M10x70 and 3/8-16 UNC x 2-3/4 variants. All threaded components strictly comply with the specified dimensional tables to ensure perfect mechanical compatibility.
The materials used cover a broad range of environmental and mechanical requirements and are identified by precise codes. Material code W1 refers to uncoated carbon steel, while W3 identifies zinc/nickel-plated carbon steel, which is also the standard finish option for the North American market. For applications requiring superior corrosion resistance, two stainless steel options are available: code W4, corresponding to V2A Stainless Steel (1.4301/1.4305 – AISI 304/303), and code W5, identifying V4A Stainless Steel (1.4401/1.4571 – AISI 316/316 Ti). Alternative materials and different surface finishes can be supplied upon specific request.
To prevent the risk of loosening caused by vibrations or dynamic loads typical of hydraulic systems, the installation of locking devices is recommended. In particular, the use of Type SI Safety Lock Washers is recommended as an anti-loosening system. The fastening system also integrates with a wide range of metal hardware developed for the Heavy Twin Series, including Type GMV Mounting Rail Nuts, Type STSV Mounting Rails, Type CRA Channel Rail Adaptors, Type IS Hexagon Socket Head Cap Screws, Type SIPD Safety Locking Plates and Type AF Stacking Bolts, specifically for Groups 4S and 5S.
| Feature | Value |
|---|---|
| Series | Heavy Twin Series |
| Standards Compliance | DIN 931/933, ANSI/ASME B18.2.1 |
| STAUFF Groups | 4S, 5S |
| Thread Types | ISO Metric, Unified Coarse (UNC) |
| Group 4S Dimensions | M10x60, 3/8-16 UNC x 2-1/4 |
| Group 5S Dimensions | M10x70, 3/8-16 UNC x 2-3/4 |
| Material Code W1 | Carbon Steel, uncoated |
| Material Code W3 | Zinc/Nickel-Plated Carbon Steel (Standard for North America) |
| Material Code W4 | V2A Stainless Steel (1.4301/1.4305 – AISI 304/303) |
| Material Code W5 | V4A Stainless Steel (1.4401/1.4571 – AISI 316/316 Ti) |
| Application Requirement | Dimensions applicable only with DPAD Cover Plate |
| Safety Devices | Safety Lock Washers, Type SI |
| Model | STAUFF Group | Thread | Material and Finish |
|---|---|---|---|
| AS-M10x60-W1 | 4S | M10x60 | W1 (Carbon Steel, uncoated) |
| AS-3/8-16UNCx2-1/4-W3 | 4S | 3/8-16 UNC x 2-1/4 | W3 (Zinc/Nickel-Plated Carbon Steel) |
| AS-M10x70-W1 | 5S | M10x70 | W1 (Carbon Steel, uncoated) |
| AS-3/8-16UNCx2-3/4-W3 | 5S | 3/8-16 UNC x 2-3/4 | W3 (Zinc/Nickel-Plated Carbon Steel) |