ISO 8744:2025 PDF

Name: ISO 8744:2025 — Fasteners — Taper grooved pins — Full-length progressive grooves
SKU: ISO 8744:2025
Price: 25 EUR
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Fasteners — Taper grooved pins — Full-length progressive grooves

Название (английский):

ISO 8744:2025

Fasteners — Taper grooved pins — Full-length progressive grooves

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 8
Дата публикации:: 25 февраля 2025 г.
Издание:: ISO IS 8744 edition 3 version 1
ICS:: 21.060.50

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Описание (английский):

This document specifies the characteristics of taper grooved pins with full-length progressive grooves (with closed end at the insertion side), in steel and stainless steel, and with nominal diameter 1 mm to 25 mm. These grooved pins are designed to fulfil the main following function: locking together two or more parts, with an easy installation (due to its shape) and a high level of pull-out resistance (due to the elastic fit behaviour of the pin). The general requirements (including functional principles for grooved pins and assembly) are specified in ISO 13669.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 8744:2025 specifies the characteristics of taper grooved pins with full-length progressive grooves (closed at the insertion side) made in steel and stainless steel, covering nominal diameters from 1 mm to 25 mm. These grooved pins are engineered to lock two or more parts together with easy installation and high pull-out resistance due to the pin’s elastic-fit behaviour. General functional principles and common requirements for grooved pins and assembly are given in ISO 13669.

Key topics and requirements

Geometry and grooves

Full‑length progressive grooves with three grooves; grooves are closed at the insertion end and open at the opposite end.
Groove angle referenced (≈70°) and groove spacing set at 120° ±20°.
Rounded (RN) or optional chamfered (CH) ends; grooves must start a specified distance from the end.

Dimensions and tolerances

Nominal diameters 1–25 mm; standard length ranges and expanded diameters defined (see Tables 1–2 in the standard).
Control of expanded diameter (d) and pin straightness (t) per ISO 13669.
Dimensions apply prior to coating for plated/treated pins.

Materials and surface condition

Standard materials: steel (symbol St) and stainless steel grades (A1, A2, A4, C1, F1); other materials (hardened steels, brass, aluminium) may be used by agreement.
Surface treatments referenced: electroplated coatings (ISO 4042), zinc flake (ISO 10683), phosphate (ISO 9717), passivation (ISO 16048).

Quality, inspection and labelling

Acceptance inspection per ISO 3269; lot identification per ISO 1891-4.
Mandatory package labelling: reference ISO 8744, nominal diameter/length, end option (CH), material symbol, finish, manufacturer ID, lot number, quantity.

Designation

Clear designation examples provided (e.g., “Grooved pin ISO 8744 – 6 × 50 – St” or “… – CH – A1”).

Applications and users

ISO 8744 grooved pins are used where a secure, interference‑fit locking pin with high pull‑out resistance and easy assembly is required. Typical users include:

Mechanical design and assembly engineers specifying fasteners for machinery, automotive, aerospace and industrial equipment

Fastener manufacturers and suppliers producing or certifying taper grooved pins

Quality and procurement teams ensuring compliance with international fastener standards

Maintenance and refurbishment operations needing durable, replaceable locking pins

Related standards

ISO 13669 - Fasteners - Grooved pins - General requirements

ISO 3506-6 - Stainless steel fastener material rules

ISO 4042, ISO 10683, ISO 9717, ISO 16048 - Coatings and surface treatments

ISO 3269, ISO 1891-4 - Inspection and lot identification

Other grooved-pin product standards: ISO 8739, ISO 8740–8747, ISO 13670, ISO 13672

Keywords: ISO 8744, taper grooved pins, full-length progressive grooves, fasteners, expanded diameter, pull-out resistance, stainless steel pins, fastener standards.

ISO 8744:2025 PDF

Abstract

Похожие стандарты

Overview

Key topics and requirements

Applications and users

Related standards

Технические детали

SIST EN ISO 13669:2025

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

ISO 404:2013/Amd 1:2022

Steel and steel products — General technical delivery requirements — Amendment 1

BS EN ISO 10683:2018

Fasteners. Non-electrolytically applied zinc flake coating systems.

SIST EN ISO 9717:2024

Metallic and other inorganic coatings - Phosphate conversion coating of metals (ISO 9717:2024)

BS EN ISO 16048:2003

Passivation of corrosion-resistant stainless-steel fasteners.

BS EN ISO 3269:2019

Fasteners. Acceptance inspection.

BS EN ISO 1891-4:2018

Fasteners. Vocabulary. Control, inspection, delivery, acceptance and quality.

SIST EN ISO 8744:2025

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