Types of Bolts and Their Uses
The main bolt types are hex bolts for general work, allen bolts for machines, carriage bolts for timber, flange bolts for assembly lines, structural bolts for steel frames, U bolts for pipes, eye bolts for lifting and foundation bolts for concrete.
General purpose
- Hex bolts: the everyday bolt for structures and machinery
- High tensile bolts: hardened for heavy loads
- Stainless and galvanized bolts: for corrosive and outdoor sites
Machine and assembly
- Allen bolts: compact socket heads for machines and dies
- Flange bolts: built-in washer for fast assembly
- Shoulder bolts: precise pivots and guides
Structural and civil
- Structural and HSFG bolts for steel frames
- Foundation bolts cast into concrete
- Hook bolts for roofing sheets on purlins
Special shapes
- Carriage bolts with square necks for timber
- U bolts for pipes and vehicle springs
- Eye bolts for lifting
- T bolts for machine table slots
