ISO 18900:2025Published

Steel structures — Structural bolting — Test method for determining the slip factor for faying surfaces of slip-resistant connections

Structures en acier — Boulonnerie de construction métallique — Méthode d’essai pour déterminer le coefficient de frottement des surfaces en contact pour les assemblages résistant au glissement

Abstract / scope

This document specifies a procedure to determine the slip factor of faying surfaces in slip-resistant (friction) connections to be used in structural steelwork.

The method is mainly applicable to uncoated and coated components made of steel with various surface treatments.

This document applies mainly to carbon steels but can be used for other type of steels as appropriate.