GOST 32484.4-2013 PDF

Full title and description

GOST 32484.4-2013 — "High-strength structural bolting assemblies for preloading. System HV — Hexagon bolt and nut assemblies". The document specifies requirements for hexagon-head bolt and hexagon nut assemblies designed for high-strength preloaded structural connections (system designation "HV").

Abstract

This standard defines dimensional, mechanical and marking requirements, assembly designation and recommendations for use of high-strength hexagon bolt-and-nut assemblies intended to achieve controlled preload in structural joints. It is a national adoption/modification of the corresponding European technical framework for preloaded structural bolting (EN 14399-4).

General information

• Status: Active / Current (implemented for application as a national standard in the Russian system).
• Publication date: Designation year 2013; introduced for national use in the Russian Federation effective 1 July 2015 (per Rosstandart order No. 317‑ст of 7 April 2014).
• Publisher: Adopted and promulgated through Russian standardization authorities (Rosstandart / Interstate standard framework); editions and English/Russian copies are available from standards distributors.
• ICS / categories: Fasteners — Bolts, nuts and washers (ICS 21.060 series; fasteners classification).
• Edition / version: GOST 32484.4-2013 (first introduction as part of the GOST 32484 series; implemented 2015 in RF).
• Number of pages: Approximately 33 pages (typical commercial document copies indicate 33 pages).

Scope

The standard applies to high-strength hexagon-head bolt and hexagon nut assemblies used for preloading structural connections (system HV). It covers designation, dimensions (including increased flats for assembly), mechanical property classes, testing/verification requirements, marking and recommended pairing with the appropriate plain washers specified in companion parts of the series. It is intended for use where controlled preload is required in steel structural assemblies.

Key topics and requirements

• Designation and marking of HV assemblies (including property class marking consistent with high-strength bolting practice).
• Dimensional requirements for hexagon bolts and hexagon nuts with increased width across flats (large wrench sizes) typical for HV system.
• Mechanical property classes and tensile/strength criteria for bolts and nuts to ensure preload performance.
• Assembly testing, suitability for preloading and quality verification procedures (tension and hardness checks as applicable).
• Requirement to use specified plain washers from companion parts (EN/GOST washers) where indicated.

Typical use and users

Engineers, fabricators and procurement professionals in structural steelwork, bridge and building construction, heavy machinery assembly, and fastener manufacturers/suppliers use this standard to specify and verify high‑strength preloaded bolt assemblies. Typical users include structural engineers, inspection bodies, bolt manufacturers, and contractors responsible for critical bolted connections.

Related standards

GOST 32484.4-2013 is one part of the GOST/EN 14399 family (parts addressing general requirements, different system types HR/HV, and associated washers and indicators). It is based on/adapted from EN 14399-4 and is used alongside other parts such as the plain-washer parts (e.g., GOST 32484.5 / GOST 32484.6 equivalents) and the general/qualification parts of the EN/GOST 32484 series.

Keywords

GOST 32484.4-2013; high-strength bolting; preloading; HV system; hexagon bolt; hexagon nut; structural bolting; preload; EN 14399-4.

FAQ

Q: What is this standard?

A: GOST 32484.4-2013 is the national (GOST) specification for high-strength hexagon bolt-and-nut assemblies intended for preloaded structural connections (system HV). It adapts the corresponding European framework for HV assemblies.

Q: What does it cover?

A: It covers dimensional and mechanical requirements, marking, designation, testing and recommended washer pairing for hexagon bolt and nut assemblies used to achieve controlled preload in steel structures.

Q: Who typically uses it?

A: Structural engineers, fabricators, fastener manufacturers, quality/inspection bodies and procurement specialists in construction and heavy engineering who need standardized, verifiable high‑strength preloadable bolting assemblies.

Q: Is it current or superseded?

A: The designation is GOST 32484.4-2013 and it was implemented for voluntary application in Russia effective 1 July 2015; commercial and standards catalogs list it as active/current. Users should verify national catalogues or Rosstandart publications for any later revisions or replacements.

Q: Is it part of a series?

A: Yes — it is part of the GOST/EN 14399 family (the multi-part series covering high-strength structural bolting for preloading, with separate parts for systems HR, HV and associated washer types and test/qualification requirements).

Q: What are the key keywords?

A: High-strength bolting; preloading; HV system; hexagon bolt; hexagon nut; structural bolting; GOST 32484; EN 14399-4.