Bolt A2

The A2 hex head bolt with partial thread is made of austenitic stainless steel per GOST 7805-70. It is one of the most common fasteners.

Assembled with a nut and washer, the bolt forms a strong, corrosion-resistant detachable connection. It is used in construction and installation, assembly and repair work.

Stainless steel grade A2 contains a low carbon content and an optimal chromium-to-nickel ratio. The Russian material designation is 08Kh18N10, 12Kh18N9 or 03Kh18N11; according to international standards, it corresponds to grades AISI 304, 304H, 304L and 305. Properties of A2 stainless steel bolts:

• tensile strength – up to 800 N/mm²;
• yield strength (nominal) – up to 600 N/mm²;
• operating temperature from -200 to +425°C;
• weldability;
• resistance to moisture and steam exposure without rusting;
• compliance with sanitary and hygienic standards;
• durability and a smooth appearance.

Limitation: A2 bolts cannot be used in contact with non-oxidizing acids, chlorine-containing compounds, or seawater.

Application

Due to the technical properties of austenitic stainless steel, the A2 bolt’s use is limited only in industries where the above-mentioned negative properties of the steel could become apparent.

The product is in demand in construction, machine and automotive manufacturing, and the food, pharmaceutical and medical sectors. It is also used in chemical and oil and gas production and in furniture manufacturing.