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Nuts with Tommy Bar Hole
GYF
Hex Nut with Tommy Bar Hole 2H Black is a premium heavy-duty industrial fastener, precision-engineered to meet stringent ASTM A194 2H grade standards for exceptional tensile strength and load-bearing reliability. This specialized hex nut integrates a precision-machined tommy bar hole, enabling tool-free manual installation and adjustment with a standard lever or rod, eliminating the need for specialized wrenches in on-site operations. The uniform black oxide finish delivers enhanced anti-rust and anti-corrosion performance, while the grade 2H carbon steel construction ensures superior resistance to deformation and creep under sustained heavy loads. It is purpose-built for industrial bulk purchasers, heavy engineering fabricators, and infrastructure project operators requiring dependable fastening solutions for high-vibration, heavy-load, and harsh working environments.
Manufactured from high-quality carbon steel compliant with ASTM A194 2H specifications, this hex nut delivers outstanding tensile strength, yield strength, and impact resistance, maintaining structural stability even under continuous heavy loads and extreme working conditions.
The standardized, precision-drilled tommy bar hole is perfectly sized to fit common lever bars, enabling rapid manual tightening and disassembly. This design drastically reduces installation time, cuts down on tool requirements, and is ideal for remote job sites, high-altitude operations, and emergency maintenance scenarios with limited tool access.
The uniform black oxide finish creates a dense protective layer, enhancing atmospheric corrosion resistance, anti-rust performance, and scratch resistance. It also optimizes thread friction coefficient, ensuring consistent preload force and reducing the risk of loosening in high-vibration environments.
Every nut is manufactured to exact ANSI/ASME and ISO dimensional standards, with high-precision thread machining that ensures perfect meshing with matching bolts and threaded rods, eliminating thread slipping and fastening failure risks.
Parameter | Standard Specification | Customization Range |
Material Grade | ASTM A194 Grade 2H Carbon Steel | Custom alloy grades available |
Thread Standard | UNC, UNF, ISO Metric | BSW, BSP, custom thread profiles |
Nominal Size Range | 3/8"- 6", M12 - M150 | Extended size range on request |
Surface Finish | Black Oxide (Black Finish) | Zinc plating, hot dip galvanized, PTFE coated |
Tommy Bar Hole Diameter | Standard per nominal size | Custom hole size & position available |
Compliance Standard | ASTM A194, ANSI B18.2.2, ISO 898-2 | RoHS, REACH compliant options |
Widely used in steel structure buildings, bridge construction, and port infrastructure projects, where the tommy bar hole design simplifies high-altitude and on-site installation, and 2H grade strength supports heavy structural load requirements.
Ideal for mining machinery, construction equipment, and bulk material handling systems, with high vibration resistance and black oxide finish providing reliable performance in dusty, humid, and abrasive working conditions.
Applied in thermal power, hydroelectric, and wind power equipment, delivering long-term stable fastening performance for continuous heavy-load operating conditions, reducing maintenance frequency and downtime.
Used in pressure vessels, industrial furnace equipment, and automated production lines, with moderate high-temperature resistance and reliable fastening performance for a wide range of general industrial applications.
We offer flexible bulk supply solutions for industrial bulk purchasers and manufacturing enterprises, ranging from small-batch prototype orders to large-volume annual framework agreements, with stable lead times and ample standard inventory for fast delivery. Our custom manufacturing services cover non-standard sizes, custom alloy materials, special hole position designs, customized surface treatments, and laser marking for logos or batch numbers. All production processes follow ISO 9001 quality management system standards, with each batch of Hex Nut with Tommy Bar Hole 2H Black accompanied by full material certification and inspection reports, with third-party testing support available.
The integrated tommy bar hole enables tool-free manual installation and adjustment with a standard lever, eliminating the need for specialized wrenches. This drastically cuts installation time, reduces tool carrying requirements, and is perfectly suited for remote job sites, high-altitude work, and emergency maintenance where tool access is limited.
Our Hex Nut with Tommy Bar Hole 2H Black is engineered for continuous use in moderate to high-temperature environments up to 450°C, making it suitable for most power generation, industrial furnace, and general heavy-duty high-temperature applications.
Yes, we offer full custom thread profiling, including non-standard pitch, diameter, and thread forms, to match your unique project requirements. Our engineering team works directly with your team to ensure full compatibility with your existing components.
For industrial purchasers, engineering contractors, and manufacturing enterprises seeking reliable heavy-duty fastening solutions, we offer a free, no-obligation custom quote service, including sample testing support, technical selection guidance, lead time planning, and cost optimization solutions. Contact our professional sales and engineering team with your specification requirements, batch volume, and project timeline, and we will deliver a tailored solution and detailed quote within 24 hours, along with free technical consulting to help you select the optimal fastener for your application.
