Overview
Square Head Bolt
Square head bolts with a four-sided wrenching head that provides a larger bearing surface and stronger wrench grip compared to standard hex bolts. Available in full and partial thread configurations across grades 4.6 to 10.9. Manufactured to IS 2585, DIN 478, and ASME B18.2.1 standards. Supplied in black, zinc-plated, and HDG finishes. Used in structural steel, transmission towers, timber connections, railway infrastructure, and heavy machinery assemblies where high torque and positive wrench grip are essential.
Key Features & Benefits
- Square head provides larger bearing surface than hex for higher torque
- Four-sided head prevents slipping under heavy wrench loads
- Full and partial thread configurations available
- Available in grades 4.6 to 10.9 for light to heavy-duty use
- HDG finish for structural and outdoor applications
- Manufactured to IS 2585, DIN 478, and ASME B18.2.1
- Custom lengths manufactured on request
- Bulk supply with material test certificates available
01
Traditional four-sided head design offers greater surface contact for manual wrenches.
02
Popular in old machinery maintenance, timber framing, and railway tracks.
03
Avoids tool slippage under heavy assembly tightening torque.
