At The Kumar Mill Stores, we recognize that for critical industrial applications, there is no substitute for the world-renowned strength of Unbrako Fasteners. As a global leader in high-tensile fasteners, Unbrako is the standard for safety and reliability in heavy machinery, aerospace, and automotive engineering.
Known for their “Advanced Fastening Solutions,” Unbrako products are engineered to provide superior fatigue resistance and higher torque capacity than standard fasteners.
Core Unbrako Fastener Categories
1. High-Tensile Socket Head Cap Screws
Unbrako’s flagship product, these socket screws are legendary for their strength. Manufactured from high-grade alloy steel, they are designed to handle the most extreme stress levels in mechanical assemblies.
- Superior Strength: Typically rated at Grade 12.9, offering significantly higher tensile strength than standard Grade 8.8 bolts.
- Precision Fit: The Unbrako Socket Head Cap Screw features deep, precision-formed sockets that allow for maximum torque without stripping.
2. Button Head & Countersunk Screws
For applications where a low profile or flush finish is required without compromising on strength, Unbrako provides specialized socket screws.
- Button Head: Features a wider bearing surface, ideal for securing thin metal sheets or guards.
- Countersunk: Designed to sit flush with the surface, preventing snagging in moving machinery parts.
- Premium Example: The Unbrako Countersunk Socket Screw is a popular choice for precision engineering where aesthetics and safety are both priorities.
3. Hex Head Bolts & Industrial Fasteners
Beyond socket screws, Unbrako produces heavy-duty hex bolts that are the backbone of structural engineering.
- Fatigue Resistance: Specifically treated to resist the “loosening” effects of constant vibration.
- Reliability: The Unbrako Hex Head Bolt provides a robust, high-tensile solution for large-scale industrial builds.