Choosing the right bolts requires precise matching based on their type and specific application scenario. Incorrect selection may lead to connection failure, safety hazards, or wasted costs. Below is a clear comparison of common bolt types and their applicable scenarios to help you make efficient decisions.
Classification and Applicable Scenarios by Head Shape and Structural Features
Hexagonal Head Bolts
Features: Hexagonal head, easy to tighten with a wrench or socket wrench; high load-bearing capacity; easy to assemble and disassemble.
Applicable Scenarios: Widely used in mechanical equipment, building steel structures, automobile chassis, and other applications requiring high-strength connections.
Note: Grade C is a coarse bolt, used for general connections; Grades A/B are precision bolts, used for high-precision assembly.
Counterhead Bolts
Features: Conical head, can be fully embedded into the connected parts; the surface is flat and without protrusions after connection.
Applicable Scenarios: Suitable for applications requiring smooth surface finish, such as instrument panels and furniture trim.
Hex Head Bolts (Concave Hex Head Bolts)
Features: The head has an internal hexagonal hole, allowing for internal tightening with an Allen wrench, saving space and providing good anti-loosening performance.
Applications: Commonly used in precision machinery, molds, and automated equipment where space is limited or where fasteners need to be concealed.
T-Slot Bolts
Features: The head is T-shaped, allowing for sliding positioning within machine tool guideways or profile slots, providing flexible installation.
Applications: Widely used in CNC machine tools, aluminum profile frames, industrial workbenches, and other modular structures.
