When your application demands a fastener that is lightweight, corrosion-resistant, and strong enough to perform under real working loads, aluminum is the material to specify. KD Fasteners, Inc.® is a full-service fastener supplier stocking a wide selection of aluminum fastener types, grades, and sizes for industries ranging from aerospace and transportation to food processing and marine equipment.
Why Choose an Aluminum Fastener?
Aluminum delivers the best strength-to-weight ratio of any common fastener material. That weight savings translates directly into lower transportation fuel costs, easier installation in overhead assemblies, and reduced structural dead load in construction. Aluminum also forms a natural oxide layer that resists corrosion, eliminating the need for additional plating or coatings, making it a practical choice for outdoor, marine, and chemical-processing environments.
Compared to steel or stainless steel fasteners, aluminum fasteners are non-magnetic and offer superior electrical and thermal conductivity. These properties make them especially useful in electronics enclosures, heat exchangers, and antenna systems.
Grades We Stock
As a nuts and bolts manufacturer with decades of experience, KD Fasteners carries aluminum fasteners in three primary alloy grades:
2024-T4 provides high fatigue resistance and is widely used in aerospace and structural applications. 6061-T6 is the most versatile grade, offering good weldability and corrosion resistance for general-purpose use. 7075 delivers the highest strength among aluminum alloys and is common in defense and high-performance assemblies.
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Aluminum Fastener Types Available
Our inventory includes hex head bolts/cap screws, carriage bolts, stadium seat bolts, heavy hex bolts, machine screws, sheet metal screws, thumb screws, self-drilling screws, tamper proof screws and nuts, threaded rod and studs (can be made to order), binding posts and screws, hex nuts, heavy hex nuts, nylon lock nuts, wing nuts, acorn cap nuts, flange nuts, square nuts, beveled washers, flat washers, and lock washers.
Need a size or configuration that is not listed? We also offer custom fastener runs in aluminum, including metric nuts and bolts for equipment built to international standards. As a trusted metric nuts and bolts supplier, we can manufacture to your exact specifications.
Get the Right Aluminum Fastener for Your Project
Whether you need a single box of 6061 hex bolts or a production run of 2024 aerospace-grade screws, KD Fasteners has the inventory and the manufacturing capabilities to deliver. Request a quote or call 800-736-5014 to speak with our team about your aluminum fastener requirements.
Typical Aluminum Chemical Analysis
| Grade | Cu* | Si* | Fe* | Mn* | Mg* | Zn* | Cr* | Ti* | Other* | Al* |
| 2024 | 3.80/4.9 | .50 Max. | .50 Max. | .30/.90 Max. | 1.20/1.80 Max. | 0.25 | 0.1 | 0.15 | .15 Max | Remainder |
| 6061 | .15/.40 | .40/.40 | .70 Max | .15 Max. | .80/1.2 | .25 Max. | .04/.35 | 0.15 | -- | Remainder |
| 7075 | 1.20/2.20 Max | .40 Max | .50 Max. | .30 Max | 2.10/2.90 Max | 5.10/6.10 Max. | .18/.28 | .20 Max | .15 Max | Remainder |
*Chemical analysis will vary on each heat number
Typical Aluminum Mechanical Properties
| Grade | Tensile Strength (PSI) | Yield Point (PSI) | Elongation | Brinell Hardness |
| 2024 | 68,000 | 47,000 | *20 | 120 |
| 6061 | 45,000 | 40,000 | 95 | |
| 7075 | 83,000 | 73,000 | 11 | 150 |
*Chemical Analysis will vary on each heat number