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Committee

Committee:

CTN 17 - Fasteners

Secretary:
ASEFI - ASOCIACIÓN DE FABRICANTES DE ELEMENTOS DE FIJACIÓN METÁLICOS
Field of Activity:
Standardization of: - Dimensions, tolerances, mechanical and operational properties, test methods and acceptance procedures of metallic fasteners, considering a fastener as any kind of product intended to mechanically join two or more structural items to perform a fixed or mobile joint or to essentially contribute to perform it, as screws, bolts, studs, nuts, washers, nails, pins and rivets; - Series of interchangeable threads, including tolerances and verification, in each field of application, with a minimum sort of basic profiles, pitches and diameters. Excluding: - Fasteners for aerospatial applications; - Special purpose screws, keys and fasteners specially used in rolling bearings; - Pipe threads and aerospatial threads.
International Relations:

ISO/TC 1  Screw threads

ISO/TC 2  Fasteners

CEN/TC 185  Fasteners

Standards developed by the committee: CTN 17: 517

UNE-EN ISO 8741:2026

Status: VIGENTE2026-01-21

Fasteners - Reverse-taper grooved pins - Half-length progressive grooves (ISO 8741:2025)

UNE-EN ISO 8745:2026

Status: VIGENTE2026-01-21

Fasteners - Taper grooved pins - Half-length progressive grooves (ISO 8745:2025)

UNE-EN ISO 8744:2026

Status: VIGENTE2026-01-21

Fasteners - Taper grooved pins - Full-length progressive grooves (ISO 8744:2025)

UNE-EN ISO 8740:2026

Status: VIGENTE2026-01-21

Fasteners. Parallel grooved pins, with chamfer point. Full-length diamond grooves. (ISO 8740:2025)

UNE-EN ISO 13672:2026

Status: VIGENTE2026-01-21

Fasteners - Parallel grooved pins - Half-length diamond grooves (ISO 13672:2025)

UNE-EN ISO 8747:2026

Status: VIGENTE2026-01-21

Fasteners - Grooved pins with countersunk head - Full-length diamond grooves (ISO 8747:2025)

UNE-EN ISO 8746:2026

Status: VIGENTE2026-01-21

Fasteners - Grooved pins with round head - Full-length diamond grooves (ISO 8746:2025)

UNE-EN ISO 13669:2026

Status: VIGENTE2026-01-21

Fasteners - Grooved pins - General requirements (ISO 13669:2025)

UNE-EN ISO 3506-3:2025

Status: VIGENTE2025-11-05

Fasteners - Mechanical properties of corrosion resistant stainless steel fasteners - Part 3: Set screws (and similar fasteners not under tensile stress) with specified grades and hardness classes (ISO 3506-3:2025)

UNE-EN ISO 3506-4:2025

Status: VIGENTE2025-11-05

Fasteners - Mechanical properties of corrosion-resistant stainless steel fasteners - Part 4: Tapping screws with specified grades and hardness classes (ISO 3506-4:2025)

UNE-EN 10230-1:2000

Status: VIGENTE2025-09-03

Steel wire nails - Part 1: Loose nails for general applications

UNE-EN ISO 7436:2025

Status: VIGENTE2025-01-15

Fasteners - Slotted set screws with cup point (ISO 7436:2024)

UNE-EN ISO 7435:2025

Status: VIGENTE2025-01-15

Fasteners - Slotted set screws with dog point (ISO 7435:2024)

UNE-EN ISO 7434:2025

Status: VIGENTE2025-01-15

Fasteners - Slotted set screws with cone point (ISO 7434:2024)

UNE-EN ISO 4766:2025

Status: VIGENTE2025-01-15

Fasteners - Slotted set screws with flat point (ISO 4766:2024)

UNE 17702:2002

Status: VIGENTE2024-12-23

ISO general-purpose metric screw threads. General plan of diametres and pitches.

UNE-EN ISO 3506-5:2024

Status: VIGENTE2024-06-26

Fasteners - Mechanical properties of corrosion-resistant stainless steel fasteners - Part 5: Special fasteners (also including fasteners from nickel alloys) for high temperature applications (ISO 3506-5:2022)

UNE-EN 15048-1:2018

Status: VIGENTE2024-04-30

Non-preloaded structural bolting assemblies - Part 1: General requirements

UNE-EN ISO 8674:2024

Status: VIGENTE2024-04-10

Fasteners - Hexagon high nuts (style 2), with fine pitch thread (ISO 8674:2023)

UNE-EN ISO 4033:2024

Status: VIGENTE2024-04-10

Fasteners - Hexagon high nuts (style 2) (ISO 4033:2023)