| Product Details | Metric |
| Dia | M16 - M36 |
| Length | up to 200 MM |
| Grade | 8.8, 10.9, 12.9 |
| Standard | As Per Customer Drawing |
New Star Industries is a reliable Square Head Bolts Manufacturer in India, offering precision-engineered bolts for heavy-duty industrial applications. Our square head bolts are available in diameters from M16 to M36 and lengths up to 200 mm, manufactured in grades 8.8, 10.9, and 12.9. Produced as per customer drawings, these bolts provide excellent torque transmission and ease of tightening in confined spaces. Square head bolts are commonly used in machinery, structural assemblies, and maintenance applications where strong grip and durability are essential.
As a reliable Square Head Bolts Manufacturer in India, New Star Industries produces heavy-duty bolts built for a very specific job — being gripped and tightened with a wrench or spanner rather than a socket, often in tight or awkward spaces where a hex head would slip or round off under load. The square head shape gives more flat surface for a tool to bite into, which matters more than it sounds once a bolt has been in service, exposed to rust, grease, and repeated maintenance cycles.
A square head bolt's flat sides are designed to sit against a matching square recess or be held firmly with an open-end spanner, preventing the head from spinning while the nut is tightened from the other side. We manufacture our square head bolts in grades 8.8, 10.9, and 12.9 as per the customer's own drawing, so the bolt's strength and head fit are matched precisely to the machinery or structural joint it's going into.
✓ Superior Grip and Torque Transmission: The flat-sided square head provides a larger, more stable gripping surface than a rounded head, reducing slippage during tightening in worn or greasy conditions.
✓ Anti-Rotation Design: The square profile seats into a matching square hole or recess, stopping the bolt from spinning while the nut is driven from the opposite side — useful wherever only single-side access is available.
✓ High Tensile Strength: Available in grades 8.8, 10.9, and 12.9, giving engineers the flexibility to specify the exact strength required for machinery, structural, or maintenance applications.
✓ Heavy-Duty Sizing: Manufactured in diameters from M16 to M36 and lengths up to 200 mm, covering the range typically specified for industrial machinery and structural connections.
✓ Built to Customer Drawing: Every square head bolt is manufactured as per the customer's own specification, ensuring correct head size, shank length, and thread engagement for the exact assembly it's designed for.
Square head bolts from New Star Industries are widely used in industrial machinery, structural steel assemblies, and maintenance applications where a strong wrench grip and resistance to rounding-off matter — particularly in older or field-serviced equipment where bolts are repeatedly loosened and retightened over the machine's working life.
Since square head bolts are commonly specified to fit a particular machine design or structural detail, New Star Industries manufactures them strictly as per customer drawing, including custom diameters, lengths, and head sizes. Share your drawing with our team, and we'll manufacture to your exact requirement.
For bulk orders, technical drawings, or grade selection guidance, get in touch with our team directly.
