Concept Fasteners is an approved supplier of 100% made-in-the-USA highway fasteners for State Departments of Transportation throughout the country. In addition to manufacturing bolts that conform to ASTM and SAE specifications, Concept Fasteners also manufactures to AASHTO specification. The acronym AASHTO stands for American Association of State Highway and Transportation Officials. Most AASHTO specifications cross-certify directly to an ASTM specification, and we provide a handy AASHTO-to-ASTM cross-reference chart. Standard products produced for the highway industry include barrier pins, guardrail bolts, bridge rail anchor bolts, traffic signal pole anchors, light pole anchor bolts, and sign structure anchor bolts, amongst others.

Concept Fasteners’ manufacturing capabilities, combined with our own in-house galvanizing line, allow us to meet the most demanding lead times. Our extensive inventory of domestically produced raw material includes 12 different grades of material in 23 different diameters ranging from 1/2″ through 3-1/2″. Concept Fasteners also stocks an unparalleled line of domestic nuts and washers to complement the bolts we manufacture.

Concept Fasteners performs in-house mechanical, hardness, and rotational capacity testing. For federally funded highway projects, we only provide products that are 100% domestic and fully traceable. We include the most comprehensive and accurate certification package in the industry, which is stored electronically should you ever require additional copies.

We also provide state-specific information regarding connecting pins and anchor pins, technical information, and answers to frequently asked questions about highway barrier pin hardware.