Table of Contents
FOREWORD
1.BACKGROUND
2.SCOPE
3.ASSOCIATEDDOCUMENTS
4.LISTOFTABLES
5.LISTOFFIGURES
SECTIONONE:GENERALREQUIREMENTS
6DEFINITIONS
7DESIGNANDDIMENSIONS
8MATERIALANDMANUFACTURE
9FREEDOMFROMDEFECT
10PROTECTIVECOATING
11SCREWTHREADS
12SQUARENESSOFFACETOTHREAD
13IDENTIFICATIONANDMARKING
SECTIONTWO:INSPECTIONANDTESTING
14QUALIFICATIONPROCEDURE
15PRODUCTIONBATCHACCEPTANCE
16INSPECTIONOFSAMPLES
17TESTINGOFSAMPLES
18TESTBOLTS
19TORQUETEST
20BOLTTOLERANCETEST
21ENDURANCETEST
22TORSIONALSTRENGTHTEST
23THRUSTTEST
24HIGHTEMPERATURETORQUETEST
25LOWTEMPERATURETORQUETEST
26CLINCHINGTESTFORCLINCHNUTS
APPENDIXA:EQUIPMENTFORTESTINGSTIFFNUTS
A.1TestforSquarenessofFacetoThread
A.2TorqueandTorsionalStrengthTests
A.3BoltToleranceTest
A.4AnchorNutThrustTest
APPENDIXB:FITTINGANDTESTINGOFCLINCHNUTS
B.1FittingofClinchNuts
B.2WorkshopEquipment
B.3Clinching
APPENDIXC:MATERIALSFORSTIFFNUTSANDCLINCHNUTS Abstract
Describes the dimensions, material, finish, testing and identification of aircraft stiffnuts with BA and BSF threads.
