Standards and specifications for guardrail bolts vary by country and region. Below are common international standards for guardrail bolts:
US Standard: In the United States, guardrail bolts generally comply with ASTM F1554. ASTM F1554 is a standard developed by the American Society for Testing and Materials for carbon steel anchor bolts and bolts used in guardrails. It includes three strength grades: Grade 36, Grade 55, and Grade 105, representing different tensile strength requirements.
European Standard: In Europe, guardrail bolts typically conform to EN 15048. EN 15048 is a standard issued by the European Committee for Standardization (CEN) for non‑preloaded structural bolt assemblies. It consists of two parts, EN 15048‑1 and EN 15048‑2, which specify requirements for normal‑strength and high‑strength guardrail bolts respectively.
International Standard: ISO 7379 is an international standard published by the International Organization for Standardization (ISO) for guardrail bolts, defining their dimensions, materials, mechanical properties, and test methods.
Note that different countries and regions may also have their own industry standards or project‑specific specifications that further detail the dimensions, materials, surface treatments, and installation requirements for guardrail bolts.
When selecting guardrail bolts, it is recommended to strictly follow the applicable regional and project standards to ensure the material, size, and performance meet actual application requirements.
Additional standards from selected countries and regions are provided below:
Australian Standard: In Australia, guardrail bolts generally comply with AS/NZS 1252. This standard is jointly issued by Standards Australia and Standards New Zealand for high‑strength structural bolts, including requirements for guardrail bolts.
British Standard: In the United Kingdom, guardrail bolts conform to BS EN 15048. Published by the British Standards Institution (BSI), this standard is identical to the European standard EN 15048.
Canadian Standard: In Canada, guardrail bolts are usually specified in CSA S16. CSA S16 is a standard by the Canadian Standards Association for the design of steel structures, including requirements for the dimensions, materials, and performance of bolts used in steel structures and guardrails.
Other countries and regions also have their own standards for guardrail bolts. Therefore, for proper selection, you should refer to local current standards and project technical requirements to ensure the bolts meet safety and performance specifications.
If you need more detailed information about guardrail bolt standards for a specific country or region, please provide relevant details and I will assist you further.
