High-Quality Double-End Bolt
Core materials and features
Material: 45# steel (8.8 grade), 40Cr alloy steel (10.9 grade).
Features:
High tensile strength: 10.9 grade bolts have a tensile strength of ≥1040MPa, suitable for heavy loads;
No risk of hydrogen embrittlement: blackening treatment avoids electroplating hydrogen embrittlement, suitable for precision equipment;
Adjustability: The length of the middle light rod can be customized to meet different installation requirements.
Functions and applicable scenarios
Functions:
Connect thick-walled containers, flanges and other parts that cannot use single-head bolts;
Replace welding for easy disassembly and maintenance.
Scenario:
Chemical equipment (reactor flange), mining machinery (crusher bearing seat), power equipment (transformer bushing).
Installation and maintenance
Installation:
One end is screwed into the threaded hole of the fixed end, and the other end is tightened with a nut;
Use flat washers + spring washers to enhance anti-loosening performance.
Maintenance:
Check the tightness of nuts regularly, and re-tighten them in high temperature environment (>200℃);
Avoid long-term immersion of blackened bolts to prevent damage to the oxide film.
