Hexagon bolt | A2 | DIN 933
Do you need a reliable machine screw for general outdoor environments or damp areas? Hexagon bolt in A2 / AISI 304 stainless steel according to DIN 933 offers excellent protection against corrosion in most indoor and outdoor environments. It is particularly suitable for use in construction, ventilation, plumbing installations, and other environments where moisture is present but not strong chemicals or salt water. A2 steel combines good strength with long-term corrosion resistance, making it an affordable and reliable option for many types of fastenings.
FIELD OF APPLICATION
An ideal choice for applications in construction, HVAC, workshops, carpentry, and general industry. Also suitable for outdoor use in sheltered environments such as facades, fences, and furniture. The fully threaded design provides a stable and vibration-resistant connection. Easy to install with a socket wrench or spanner. Requires minimal maintenance under normal operating conditions.
TECHNICAL SPECIFICATIONS
Product type: Hexagon screw / bolt
Standard: DIN 933 (corresponds to ISO 4017)
Grade: A2 / AISI 304 (stainless steel)
Material class: A2-70 (other classes upon request)
Thread type: Metric, fully threaded
Surface treatment: Untreated (natural stainless steel)
Head shape: Hexagonal
Drive type: Not applicable
FREQUENTLY ASKED QUESTIONS (FAQ)
What does it mean that a hexagon screw is manufactured according to DIN 933?
DIN 933 means that the hexagon screw is fully threaded all the way up to the screw head (unlike DIN 931, which has a partially threaded shank). This makes it very versatile because you can thread it all the way into tapped holes or use it with a nut for stepless clamping regardless of material thickness.
Why is A2 / AISI 304 the right material choice for general outdoor environments?
Stainless A2 steel (AISI 304 / 1.4301) has excellent corrosion resistance against rain, moisture, steam, and mild detergents. This makes the screw a cost-effective and reliable steel choice for building constructions, HVAC installations, ventilation, and machine assembly where the screw is not exposed to direct salt water or acids (where A4 is required).
Which tools and accessories should be used when installing DIN 933 in A2?
The screw is easily installed with standard spanners, sockets, or torque wrenches adapted for hexagon heads. For optimal function and longevity, you should combine it with nuts (e.g., DIN 934) and washers (e.g., DIN 125) in A2 stainless steel to avoid galvanic corrosion in the joint.