Skip main navigation
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: 507

UNE-EN ISO 7436:2025

Status: VIGENTE / 2025-01-15

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

UNE-EN ISO 7435:2025

Status: VIGENTE / 2025-01-15

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

UNE-EN ISO 7434:2025

Status: VIGENTE / 2025-01-15

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

UNE-EN ISO 4766:2025

Status: VIGENTE / 2025-01-15

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

UNE 17702:2002

Status: VIGENTE / 2024-12-23

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

UNE-EN ISO 3506-5:2024

Status: VIGENTE / 2024-06-26

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: VIGENTE / 2024-04-30

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

UNE-EN ISO 8674:2024

Status: VIGENTE / 2024-04-10

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

UNE-EN ISO 4033:2024

Status: VIGENTE / 2024-04-10

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

UNE-EN ISO 8675:2024

Status: VIGENTE / 2024-04-10

Fasteners - Hexagon thin nuts (style 0), with fine pitch thread (ISO 8675:2023)

UNE-EN ISO 4035:2024

Status: VIGENTE / 2024-04-10

Fasteners - Hexagon thin nuts (style 0) (ISO 4035:2023)

UNE-EN ISO 8673:2024

Status: VIGENTE / 2024-04-10

Fasteners - Hexagon regular nuts (style 1), with fine pitch thread (ISO 8673:2023)

UNE-EN ISO 4032:2024

Status: VIGENTE / 2024-03-20

Fasteners - Hexagon regular nuts (style 1) (ISO 4032:2023)

UNE-EN 14399-7:2019

Status: VIGENTE / 2024-03-11

High-strength structural bolting assemblies for preloading - Part 7: System HR - Countersunk head bolt and nut assemblies

UNE-EN 14399-8:2019

Status: VIGENTE / 2024-03-11

High-strength structural bolting assemblies for preloading - Part 8: System HV - Hexagon fit bolt and nut assemblies

UNE-EN 14399-10:2019

Status: VIGENTE / 2023-12-04

High-strength structural bolting assemblies for preloading - Part 10: System HRC - Bolt and nut assemblies with calibrated preload

UNE-EN 14399-9:2019

Status: VIGENTE / 2023-12-04

High-strength structural bolting assemblies for preloading - Part 9: System HR or HV - Direct tension indicators for bolt and nut assemblies

UNE-EN ISO 898-2:2023

Status: VIGENTE / 2023-09-27

Fasteners - Mechanical properties of fasteners made of carbon steel and alloy steel - Part 2: Nuts with specified property classes (ISO 898-2:2022)

UNE-EN ISO 2702:2023

Status: VIGENTE / 2023-09-27

Fasteners - Heat treated tapping screws - Mechanical and physical properties (ISO 2702:2022)

UNE-EN ISO 14581:2023

Status: VIGENTE / 2023-09-27

Fasteners - Hexalobular socket countersunk flat head screws (common head style) with reduced loadability (ISO 14581:2022)