Underground Shaft Mining Hardware
Tengco Supplies Mining Equipment Engineered to ASTM F432
Tengco supplies custom cast and forged fasteners and accessories for both new construction and maintenance of roof supports for underground shaft mining. We can provide cost-effective engineering solutions made to your exact specifications that save you time, resources and money.
Tengco specializes in custom hardware and can supply virtually any special formed or assembled metal part required for the shaft mining industry. All parts are engineered to ASTM F432 requirements with rigid quality controls and inspections to ensure precise specification compliance. Tengco can provide the quality, performance, and price customers require for their shaft mining hardware.
This is just a sampling of the many items Tengco can custom produce for the mining industry:
- Leaf Bail Assemblies
- Expansion Shells
- Cable Heads
- Wedges
- Spherical Washers
- Hot Forged Nuts
Our quality control technicians at each factory, international distribution center, and domestic distribution center work to ensure a consistent, dependable product that is durable and exceeds expectations.
We provide services for every step of the custom manufacturing process. From global sourcing to product development, fabrication, inventory tracking, warehousing and shipping, we make sure that your order meets your exact specifications. Our global network of manufacturers and distribution points insures flexible scheduling and best options for shipping.

Top Ten Reasons Why You Should Choose Tengco:
- Parts can be manufactured under strict ISO9001:2015 standards
- Engineering consulting leads to innovative, cost effective solutions
- Relationships with hundreds of international factories
- Zero defect quality level manufacturing capabilities
- Streamline your supply chain
- Up to the minute inventory tracking
- High quality, high volume custom manufacturing
- International and stateside quality control inspection labs
- Four US distribution centers help control inventory and reduce costs
- Designed to ensure optimal product quality, strict adherence to your design, minimal time to market, and a reduced cost to you
Take a Closer Look at Tengco’s Quality.
This is just a sampling of the many items Tengco can custom produce for the mining industry:
Expansion Shell and Insert
Leaf Bail Assembly
Flange Nut Washer
Spherical Washer
Hemispherical Nut
Stop Coupler
Get In Touch
More Info
Since 1979 Tengco has supplied our customers with superior custom manufactured parts for a wide variety of industries and applications. Our mission is to provide quality products on time at competitive prices.
From standard nuts and bolts to specialty fasteners, castings, forgings and stampings, our extensive product knowledge can help your organization maintain the highest standards for your custom parts.
Address: 14030 Bolsa Lane, Cerritos, CA 90703
Phone: (714) 676-8200
How Can Tengco Help You?
Tengco is a hardware distributor that provides global sourcing solutions for custom manufacturing. We provide world class global sourcing, service and distribution.
Tengco is the perfect solution to your global sourcing needs. We can provide anything from standard nuts and bolts to specialty fasteners, castings, forgings and stampings
We have been working with our customers for over 35 years to develop custom metal components for a wide variety of industries and applications.
Tengco is ISO 9001:2015 Certified through our midwest distribution center and the combination of our experienced engineering team, logistics team, customer service representatives and sales staff can help your organization maintain the highest standards for your custom parts.
Tengco supplies customers throughout the United States, Canada, Mexico, South America, Europe and Asia and we can’t wait to speak to you about how we can help your organization.