Alcoa Defense Introduces Innovative Huck 360 and Bobtail Fasteners

February 24, 2010

WASHINGTON–Alcoa (NYSE:AA) announced today that it will offer two new fasteners for
the defense market – the Huck 360 and the Bobtail. Offering an unmatched
durability, the fasteners will be introduced for military vehicle
applications at the Association of the United States Army (AUSA) Winter
Symposium and Exhibition in Ft. Lauderdale, Fla.

“We are excited to be able to offer the military these innovative new
fastening solutions,” said David Dobson, president, Alcoa Defense. “Our
fasteners continually set new standards for excellence in the commercial
transportation and aerospace industries. Now, we are focused on
developing new products like the Huck 360 and the Bobtail that meet the
demanding specifications of the armed forces.”

Requiring only a standard wrench or socket for installation and removal,
the Huck 360 provides a convenient fastening solution for military
applications. Ensuring excellent long-term vibration resistance and
durability, the Huck 360 offers a higher clamp load and five times the
fatigue strength of conventional lock nuts and bolting systems.
Additionally, the Huck 360 eliminates the need for special tooling and
patches, adhesives or lock washers to prevent loosening.

The Bobtail fastener provides a strong, durable joining solution for
armor, chassis, suspension and body-to-chassis assembly by maintaining
joint strength while absorbing sudden impacts. Additionally, Bobtail
fasteners maximize vehicle lifespan by enabling repairs or disassembly
through the use of available field repair kits.

When designing and manufacturing vehicles, the Bobtail fastener provides
maximum flexibility to use the best combination of materials without
joining process limitations, as the Bobtail delivers strong joints
without compromising the integrity of the materials like conventional
welding techniques. Now, dissimilar materials, as well as thick armor
plate, can easily be joined.

The Bobtail fastener also streamlines vehicle manufacturing by
increasing assembly speed. It achieves consistent, vibration-proof clamp
loads without the use of skilled installation labor for time-consuming,
traditional welding processes.

AUSA Winter Symposium attendees can learn more about the Huck 360 or
Bobtail fasteners by visiting Alcoa Defense at booth 2222.

About Alcoa Defense

Alcoa Defense partners with industry leaders to design systems and
materials that increase the speed, reach, agility and survivability of
today’s and tomorrow’s strategic platforms. Through an unmatched
combination of defense and commercial engineering, Alcoa delivers
multi-product, lightweight and cost-effective solutions for programs
ranging from the F35 Joint Strike Fighter to the M777 Howitzer to
armored tactical and fighting vehicles. More information can be found at

About Alcoa

Alcoa is the world leader in the production and management of primary
aluminum, fabricated aluminum and alumina combined, through its active
and growing participation in all major aspects of the industry. Alcoa
serves the aerospace, automotive, packaging, building and construction,
commercial transportation and industrial markets, bringing design,
engineering, production and other capabilities of Alcoa’s businesses to
customers. In addition to aluminum products and components including
flat-rolled products, hard alloy extrusions, and forgings, Alcoa also
markets Alcoa® wheels, fastening systems, precision and investment
castings, and building systems. The Company has been named one of the
top most sustainable corporations in the world at the World Economic
Forum in Davos, Switzerland and has been a member of the Dow Jones
Sustainability Index for seven consecutive years. More information can
be found at