St Louis Screw & Bolt
St Louis Screw & Bolt A325 A490 ASTM stuctural bolts, tension cotrol bolts f1852 f2280
http://stlouisscrewbolt.com

Alberta Bolt Makers (ABM)
We manufacture large threaded steel products for the heavy-duty construction industry
http://www.albertaboltmakers.com/

George H. Seltzer & Company
The George H. Seltzer & Company manufactures quality ZIP Machine Tool Accessories.
http://www.zipbolts.com/

Lake Erie Screw Corp.
Manufacturer of hex cap screws, hex head flange and carriage bolts, and socket head screws .
http://www.lescrew.com/

MMS and Accessories
A Complete Line of stainless steel hardware, stainless steel bolts, stainless steel washers, stainless steel screws, stainless steel tubing, stainless steel fasteners, street rod parts, stainless steel exhaust, and stainless steel muffler clamps.
http://www.mmsacc-stainless.com

Haydon Bolts, Inc.
Construction fastener specialists since 1864. Haydon specializes in custom manufactured Anchor Bolts, Tie Rod Assemblies, U-Bolts, Eye Bolts, and J-Bolts in diameters from 1/2" through 4" and up to 40 feet in length. Along with our manufactured products, Haydon specializes in and carries one of the American's largest stock of structural bolts, nuts & washers. We stock TC Bolts (Tension Control Shear Bolts) per ASTM F-1852 (A325) Plain & Mechanically Galvanized and A490-1 Plain from 5/8" though 1-1/8" Diameter. We also stock Heavy Hex Structural Bolts per ASTM A325-1 Plain, Hot Dip Galvanized, Mechanically Galvanized & ASTM-3 Weathering Steel and A490-1 & A490-3 Weathering From 1/2" Diameter through 1-1/2" Diameter. We manufacture & stock larger diameter structural bolts per ASTM A449 & A354-bd. Haydon also sells & services Electric Wrenches for installing TC and Hex Bolts. We also Stock many other types of fasteners for use in all fields of commercial, industrial, and heavy construction. Please check out our products for a more in depth look. Due to our interest in promoting & supporting the industries in which we are involved. Haydon maintains membership in the following industry association: Industrial Fastener Institute (IFI), National Fastener Distributors Association (NFDA), American Institute of Steel Construction (AISC), National Steel Bridge Alliance (NSBA), American Society of Testing & Materials (ASTM INTERNATIONAL), Research Council on Structural Connections (RCSC or The Bolt Council), and Associated General Constructors (AGC), both Regional & National.
http://www.haydonbolts.com

Reliable Fasteners Pvt Ltd.
Manufacturers and exporters of fasteners, hex head bolts/screws, lag bolts, machine screws, self tapping screws, rivets, nails and nuts.
http://relfa.com

Southwest Fastener
southwestfastener
http://www.swfastener.com

Hexagonal Life
Software Download Page
http://members.optusnet.com.au/thekingdoms/download/index.html#HexCells

IE Bolts and Nut Ltd.
business webite, IEbolts.co.uk
http://www.iebolt.co.uk