UNJ threads. General requirements and limit dimensions

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

15-01-2000

Publisher

British Standards Institution

Foreword
1 Scope
2 Normative reference
3 Term and definition
4 Basic profile
5 Series of threads
6 Tolerances
7 Gauging
8 Designation of threads
9 Tables

Describes the general requirements and limit dimensions of inch series UNJ threads with controlled root radius for aerospace construction.

This International Standard specifies the general requirements and limit dimensions of inch series UNJ threads with controlled root radius for aerospace construction.

It determines the basic triangular profile for this type of thread and gives a system for designating the diameter and number of threads per inch combinations. For all diameters 0,060 in (1,524mm) to 6,000 in (152,4mm), it offers in the form of tables the basic dimensions and tolerances for a selection of diameter and number of threads per inch combinations. It also provides the method of calculation for the dimensions and tolerances for any diameter and number of threads per inch combination not given in the tables, including threads with a diameter in excess of 6.000 in.

Committee	ACE/12
DevelopmentNote	Also numbered as ISO 3161 Supersedes 97/716095 DC and BS 4084(1996) (06/2005)
DocumentType	Standard
Pages	48
PublisherName	British Standards Institution
Status	Current
Supersedes	BS 4084:1996 97/716095 DC : SEP 97

SBAC TS 220 : 1	TECHNICAL SPECIFICATION FOR UNION NUTS, SELF-LOCKING (UNIFIED THREADS) - HIGH TEMPERATURE NICKEL ALLOY INCONEL 718 CLASSIFICATION R[M] >= 1270 MPA (185000 LBF/IN[2]) @ T[A]/+705 DEGREES C
SBAC TS 128 : 6	'ALL-METAL' SELF-LOCKING NUTS (UNJ THREADS) 1100 MPA (160,000 LBF/IN[2]) MINIMUM TENSILE STRENGTH AT ROOM TEMPERATURE
SBAC RS 678 : 6	FASTENERS, ROLLED THREADS, CHAMFERS, LEAD THREADS & RUNOUTS
SBAC TS 24 : 6	MANUFACTURING SPECIFICATION FOR BOLTS, 1275 MPA (185,000 LBF/IN[2]) - TENSILE AT ROOM TEMPERATURE, 1000 MPA (145,000 LBF/IN[2]) TENSILE AT 650 DEGREE C
SBAC TS 66 : 6	DRAUGHTING AND PART NUMBERING PROCEDURES FOR A¦D¦S DRAWINGS
SBAC TS 145 : 4	TECHNICAL SPECIFICATION NO. TS145 - MANUFACTURING SPECIFICATION FOR BOLTS (UNIFIED THREADS) HEAT RESISTING ALLOY STEEL FV535, CLASSIFICATION RM >= 1000 MPA (145,000 LBF/IN[2]) @ TA/+550 DEGREES C
15/30329889 DC : 0	BS A 266 TO 271 - BOLT, 100 DEGREES COUNTERSUNK HEAD, HI-TORQUE SPEED DRIVE RECESS, UNJF THREAD, SPLIT PIN HOLE OPTION, TITANIUM ALLOY, VARIOUS FINISHES, CLASSIFICATION: 80 TF/IN[2] (1100 MPA) AT TA/+315 DEGREES C
07/30165543 DC : DRAFT MAY 2007	BS 4A 100 AMD1 - SPECIFICATION FOR GENERAL REQUIREMENTS FOR BOLTS AND FREE RUNNING NUTS OF TENSILE STRENGTH NOT EXCEEDING 1249 MPA
BS 4A 100:2003	Specification for general requirements for bolts and free running nuts of tensile strength not exceeding 1249 MPa
BS 2A 266 to 2A 271:2016+A1:2019	Aerospace Series. Bolt, 100° Countersunk head, Hi-Torque speed drive recess, close tolerance shank, UNJF thread, split pin hole option, titanium alloy, various finishes. Classification: R<sub>m</sub> 1100–1250 MPa (160 000–180 000 lbf/in<sup>2</sup>) at Ambient Temperature \| +315 °C
BS 2A241(2005) : 2005	GENERAL REQUIREMENTS FOR STEEL PROTRUDING-HEAD BOLTS OF TENSILE STRENGTH 1250 MPA (180000 LBF/IN[2]) OR GREATER - SPECIFICATION

ISO 15872:2017

Aerospace — UNJ threads — Gauging

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BS A 346:2000

UNJ threads. General requirements and limit dimensions

Table of Contents

Abstract

Scope

General Product Information

Standards Referenced By This Book

Standards Referencing This Book

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