- Project plans
- Project activities
- Legislation and standards
- Industry context
- Specialist wikis
Last edited 23 Feb 2021
Structural fasteners are strong, heavy-duty fasteners that are necessary for the construction of structures which include steel to steel connections. In other words, they are used when one metal structure needs to be connected to another.
The typical application of structural fasteners is in bridge and building construction, where they are used to connect metal beams and girders. To be considered for structural purposes, fasteners need to be made of quenched and tempered steel with a minimal tensile strength of 120 ksi.
Some of the most commonly used structural fasteners are:
- Heavy hex bolts. This type of bolt or cap screw comes with a hexagonal head, and is larger and thicker than standard hex bolts. A325 and A490 specifications are suitable in this application.
- Heavy hex nuts, also known as finish nuts. Heavy hex nuts are used along with bolts - both for strength and for a thick finished look.
- Flat washers. These high hardness and low-deformation plain washers, punched washers, or flat washers are used as spacers and load distributors.
- Tension control bolts. TC bolts are extremely adept at handling vibrations and preventing load reversals and they eliminate slips in connections.
The quality of structural fasteners specified is of prime importance because they will be holding together heavy and crucial structures. Therefore, they must be durable, sturdy, rust-proof and corrosion-free for several years. Using poor quality structural fasteners not only reduces the durability of the overall structure but also puts lives at risk.
 Related articles on Designing Buildings Wiki
- Civil engineer.
- Civil Engineering during the Industrial Revolution in Britain.
- Concept structural design of buildings.
- Elements of structure in buildings
 External references
Featured articles and news
A national valuation to fund old-age pensions.
The world’s largest Commonwealth memorial to the missing.
Long after the end of the defects liability period.
Occupant satisfaction and wellbeing in buildings.
From the simple to the complex.
And the UK Government guidelines.
Commitment agreed to by major built environment bodies.
Electrical skills, low carbon, high-tech and the building services revolution.
Ultra-deep drilling with millimeter-wave beam technology.
Looking at the built environment from space.
BSI standards 8671, 8672 and 8673.
Bringing life to burial grounds.
From failed modernism to twenty-minute neighbourhoods.
The gates process and change control.
Why people behave as they do. APM book.