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UNI EN ISO 4042 : 2003

Superseded

Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by

FASTENERS - ELECTROPLATED COATINGS

Superseded date

17-10-2018

Superseded by

UNI EN ISO 4042 :2018

Published date

01-01-2003

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1 Scope
2 Normative references
3 Terms and definitions
4 Dimensional requirements and gauging
      4.1 Dimensional requirements before electroplating
      4.2 Dimensional requirements after electroplating
5 Other coating requirements
6 Hydrogen embrittlement relief
7 Corrosion protection
8 Applicability to fasteners that cut or form their own
      mating threads
9 Specification of coating thickness
10 Measurement of coating thickness
      10.1 Local thickness
      10.2 Batch average thickness
      10.3 Agreement on test method
11 Sampling for thickness tests
12 Ordering requirements for electroplating
13 Designation
Annex A (informative) Hydrogen embrittlement relief
Annex B (informative) Salt spray corrosion protection
                      performance of metallic coatings
Annex C (informative) Guidance on procedures that may be
                      adopted to accommodate thick coatings
Annex D (normative) Determination of batch average thickness
Annex E (normative) Designation code, system A, for
                    electroplated coatings on threaded parts
Annex F (informative) Examples for coating designation
Annex G (informative) Surface areas of bolts, screws and nuts
Bibliography

Defines dimensional requirements for electroplated fasteners of steel or copper alloy. Defines thicknesses of coating and provides recommendations for hydrogen embrittlement relief for fasteners having high tensile strength or hardness and for surface-hardened fasteners. Deals mainly with the electroplating of threaded fasteners, but may also be applicable to other threaded parts, and non-threaded parts eg. washers and pins.

DevelopmentNote
Supersedes UNI 3740-6 (06/2003)
DocumentType
Standard
PublisherName
Ente Nazionale Italiano di Unificazione (UNI)
Status
Superseded
SupersededBy
Supersedes

UNI 8836 : 2013 CONICAL SPRING WASHERS - NORMAL SERIES
UNI 9205 : 2011 BLIND THREADED TUBULAR RIVETS WITH COUNTERSUNK HEAD
UNI 9709 : 2010 TWO-THREAD COUNTERSUNK (FLAT) HEAD TAPPING SCREWS WITH CROSS RECESSED FOR PLASTICS
UNI 6599 : 2009 EXTERNAL TAB WASHERS - PRODUCT GRADE A
UNI 8837 : 2013 CONICAL SPRING WASHERS - WIDE SERIES
UNI 8182 : 2010 CROSS RECESSED COUNTERSUNK (OVAL) HEAD WOOD SCREWS
UNI 9206 : 2011 BLIND THREADED TUBULAR RIVETS WITH PLATE EDGE HEAD
UNI 11545 : 2014 PAN HEAD TAPPING SCREWS WITH CROSS RECESSED FOR PLASTICS
UNI 9710 : 2010 TWO-THREAD RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS WITH CROSS RECESSED FOR PLASTICS MATERIALS
UNI 1751 : 2013 SINGLE COIL SPRING WASHER - NORMAL SERIES - GENERAL TEST METHODS
UNI 10447 : 2011 THREADED TUBULAR RIVETS WITH PLATE EDGE HEAD, HEXAGONAL AND PARTIALLY HEXAGONAL SHANK
UNI 6950 : 2010 HEXAGON HEAD TAPPING SCREWS WITH COLLAR
UNI 9704 : 2010 TWO-THREAD HEXAGON HEAD TAPPING SCREWS FOR PLASTICS
UNI 6596 : 2009 SQUARE WASHERS WITH HOLE - PRODUCT GRADE C
UNI 701 : 2010 SLOTTED ROUND HEAD WOOD SCREWS
UNI 8181 : 2010 CROSS RECESSED COUNTERSUNK (FLAT) HEAD WOOD SCREWS
UNI 9707 : 2010 TWO-THREAD PAN HEAD TAPPING SCREWS WITH CROSS RECESSED FOR PLASTICS
UNI 9708 : 2010 TWO-THREAD FLANGE PAN HEAD TAPPING SCREWS WITH CROSS RECESSED FOR PLASTICS
UNI 6595 : 2009 PLAIN WASHERS WITH SQUARE HOLE - PRODUCT GRADE C
UNI 704 : 2010 HEXAGON HEAD WOOD SCREWS
UNI 11547 : 2014 HEXAGON HEAD TAPPING SCREWS WITH COLLAR FOR PLASTICS
UNI 9706 : 2010 TWO-THREAD HEXAGON HEAD TAPPING SCREWS WITH LARGE COLLAR FOR PLASTICS
UNI 8838 : 2013 CONICAL SPRING WASHERS - EXTRALARGE SERIES
UNI 9203 : 2011 THREADED TUBULAR RIVETS WITH PLATE EDGE HEAD
UNI 8180 : 2010 CROSS RECESSED PAN HEAD WOOD SCREWS
UNI 6600 : 2009 TAB WASHERS WITH LONG TAP - PRODUCT GRADE A
UNI 702 : 2010 SLOTTED COUNTERSUNK (FLAT) HEAD WOOD SCREWS
UNI 11544 : 2014 HEXAGON HEAD TAPPING SCREWS FOR PLASTICS
UNI 9201 : 2011 THREADED TUBULAR RIVETS WITH CYLINDRICAL HEAD
UNI 8116 : 2010 Hexagon head drilling screws with tapping screws thread
UNI 9204 : 2011 BLIND THREADED TUBULAR RIVETS WITH CYLINDRICAL HEAD
UNI 6601 : 2009 RECTANGULAR TAB WASHERS - PRODUCT GRADE A
UNI 10446 : 2011 BLIND THREADED TUBULAR RIVETS WITH CYLINDRICAL HEAD, HEXAGONAL AND SEMI HEXAGONAL SHANK
UNI 9202 : 2011 THREADED TUBULAR RIVETS WITH COUNTERSUNK HEAD
UNI 7323-14 : 2014 FASTENERS WITH PARTICULAR CHARACTERISTICS - TECHNICAL REQUIREMENTS - PART 14: THREAD FORMING SCREWS FOR ISO METRIC, TYPES AND DESIGNATION
UNI 10448 : 2011 THREADED TUBULAR RIVETS WITH CYLINDRICAL HEAD, HEXAGONAL AND SEMI HEXAGONAL SHANK
UNI 11546 : 2014 COUNTERSUNK (FLAT) HEAD TAPPING SCREWS WITH CROSS RECESSED FOR PLASTICS
UNI 9705 : 2010 TWO-THREAD HEXAGON HEAD TAPPING SCREWS WITH COLLAR FOR PLASTICS
UNI 703 : 2010 SLOTTED COUNTERSUNK (OVAL) HEAD WOOD SCREWS
UNI 10445 : 2011 BLIND THREADED TUBULAR RIVETS WITH PLATE EDGE HEAD, HEXAGONAL AND SEMI HEXAGONAL SHANK
UNI 8839 : 2013 CURVED OR CRINKLED OPEN SPRING WASHERS - GENERAL TEST METHODS
UNI 11548 : 2014 RAISED COUNTERSUNK (OVAL) HEAD TAPPING SCREWS WITH CROSS RECESSED FOR PLASTICS

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