SS Allen Hex Socket Cap Screw:M12 x 85 - DIN 912/A2/Half Thread

This fastener is an M12 x 85 Allen hex socket cap screw constructed from A2 stainless steel, conforming to the DIN 912 standard. The half-thread design provides a balance between clamping strength and shank clearance, making it suitable for applications where part of the fastener length needs to pass through a non-threaded hole before engaging the nut or threaded member. A2 grade stainless steel offers a practical compromise between corrosion resistance and mechanical strength, often selected for outdoor or damp environments where higher corrosion resistance is needed than zinc-plated steel but the premium cost of A4 stainless is not justified. Buyers specify this item when a secure, tamper-resistant fastening solution is required in machinery, construction, or general assembly where stainless steel aesthetics or corrosion protection are essential. Select this specific designation to ensure the correct nominal diameter, total length, and partial threading match your project’s dimensional and environmental requirements.