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Timestamp: 2019-07-24 01:39:37
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IS 1367 PART 7 | Nut (Hardware) | Screw
IS 1367 PART 7
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INDIAN STD. FOR NUTS AND BOLTS
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I.S 5624-1993 FOUNDATION BOLTS
Astm-f959m-06-Washer
DIN 433.pdf
Indian Standard IS 1363(Part1):1992
ALS_268_03_ISSUE_03
IS 1367 PART 1
DIN 267 part 3
IS 1367 PART 8
IS 1367
IS.2102 general tolerance
IS 1367 PART 5
577-EN
Torque_Values_-_A_Guide_to_Specifying_Torque_Values_For_Fasteners[1].pdf
TECHNICAL SUPPLY CONDITIONS FOR THREADED STEEL FASTENERS.
PART VII MECHANICAL WJTHOUT PROPERTIES SPECIFIED AND TEST METHODS LOADS . FOR NUTS PROOF
( Second Revision )
Scope Covers the mechanical properties of nuts and similar threaded parts with01 becified proof load values which are not covered by the scope of IS: 1367 ( Part VI )-1980 Technic: upply conditions for threaded steel fasteners: Part VI Mechanical properties and test methods fc uts with specified proof loads ( second revision ) . This standard does not apply to nuts requiring 1 resistance, and temperature above + 300C or below
not be used above 25OC.
a) Weldability, b) Corrosion c) Ability
- 50C.
Nuts made from free cutting
steel should
Designation System letter .. H . The nurpber . . titers to the hardness ( see
The property classes of such nuts are designated by a number sufixe indicafes l/lOth of the minimum Vickers Hardness and the letter I_ .. I able 1 ).
HV, Min
Forged and Machined Nuts The chemical composition for forged nuts shall be as given may also be used for machined nuts if they are nDt made of free cutting steel,
rable 2.
2 CHEMICAL ( FROM OTHER
COMPOSITION OF FORGED AND MACHINED THAN FREE CUTTING STEEL ) NUTS
Chemical Composition (Check Analysis)
Carbon Max percent
Manganese Min percent
Phosphorus Max percent ___---.
Sulphur Max percent ___.__. 0150
of property class 22H must be hardened and tempered Wrequired, alloy steel may also be used.
@ February -1981, BIS I
EHAVAN,
iNDIANi-STANDARDS
9 BA-HADUR SHAk NW DELHI 110002 ZAFAR MARG
1367 ( Part VII ) - 1980
/V@.s ( with free Cutting
3.2 Machined
FOR NUTS MADE OUT OF FREE CUTTING Limits (Check Analysis) STEEL
Carbon Max percent .---14H 050
Phosphorus Max percent
Lead percent
Sulphur Max percent
4. Met hanical
TABLE Mechanical 4 MECHANICAL PROPERTIES Property Class
Hardness *260 5. Test Max
HV5, Max for cold forged nuts.
Method for Mechanical Properties The Vickers Hardness test shall be carried out in accordance 5.1 Hardness Test provisions of IS : 1501-1968 Method for Wickers hard.ness tesi for steel ( firsf revision ) .
Consequent to the decision to revise IS : 1367-1967 Technical supply conditions for threaded steel fasteners due to the work at international level, separate parts have been formulated for The different parts in the revision are listed in Part I technical and drafting reasons alike. introduction and general information, The requirements for nuts, which are not amenable to proof loading either due to their geometry or application, are covered in this standard. Although work is yet to be initiated at the international level on nuts without specified proof loads, the need for a national standard on the subject has been felt in view of a large number of Such products cannot be classified nut-like threaded and formed products which are in use. according to definite test loads or loading capacities, but only according to their hardness values. For this reason the minimum hardness has been ado>;ed as Ihe characteristic feature. Maximum values have also been specified to guard against a drop in the transverse toughness due to excessive hardness. The property classes covered in this standard are applicable for nuts with one or more of the following characteristics: a) With nominal heights less than 05 d; b) With lesser across flats than those specified in IS : 9519-1980 Dimensions for width across flats for hexagon head bolts and nuts ; c) With threads other than triangular IS0 metric threads; do) With nominal thread sizes abovl: M39; and e ) With special configuration. The property class designation system based on hardness values is applicable to the type of products covered in the following Indian Standards:
IS : 3468-1975 Specification for pipe nuts IS : 5368-1969 Specification for thin slotted and castle nuts ( dia range 6 to 52 mm ) IS: 6731-1972 Specification for locknuts, narrow series and lockwashers with straight inner tab for rolling bearings (first revision ) IS : 8856-1978 Specification for hexagon weld nuts While the above Indian Standards presently specify property class 4, 6, 8, etc, the same would be modified in their revisions, In the preparation of the standard, assistance has been derived from DIN 267 sheet 4-1971 Schrauben, Mutten Und ahuliche Gewinde - und Formterte ( Bolts, screws, nuts and similar threaded and formed ,parts - technical supply conditions of delivery - propert! classes and test methods for nuts of unalloyed qr low alloy steels ) issued by Deutsches lnstitut fur Normung ( DIN ).
Printed at Central Electric Press, Delhi-28
AlWENDM131W NO. 1
To 1S t 1367 ( I?art V.LI ) - 1$)80
FOR PART Vll rHREADIID
SUPI?J.Y
FASTENERS AND TEST METHODS LOADS FOR
MECHANICAL NUTS
WITHOUT ( Secoltfl
PROOF )
l{(?visio:l
Ior tl~c existing
( P(Jge 1, l-able 1 ) - Substitute
TABLE Property Vickers Class . hardness, HV, Min 1
tile follmving
. CLASSES . 22 H -. 220 \
DESIGNATION 14H 140
OF PROPERTY 17 H
( lt:ge 1, T-frblc 2 ) Sul}stitutc
tllc following
for the Cxistillg
2 CHEMICAL ( FROM OTHER COMPOSITION OF FORGED AND MACHINED THAN FREE CUTTING STEEL ) NUTS
. . .. .._ .
Properly Clnss .. .. 1411
.... . . 17H 22H* -1
,. ._=-..-.. .-. C[ll boll, Max, pcrrcent
Limits (Chrrck Allll!ysis ) Sulphurt Max, porcwit -.
0150 0150 0058 ______
Chomicnl CO III POSitiOll ,.....=_- . MmI{Janoscr, Min, percent
Phosphorus Max, percent
- ;:30-- 058 058 __.. -_ 030 __ .____ I . -
0060 0048
qNuts of proporty class 22H nlust bO Ilardonod rsnd tmpered If required, alloy steel may also be used. lnTabl Q4.
( Irz,;e 2,
to crchlevo the mechanical
proportlerr
{il~an ... I
IaLle 3,.@
co~r~~)t~~ ) slll~sliltllc
14HI 7H .f~r 14H.
Mechanical Properties __. _
PROPERTIES Property Class
Y ___ 22H
. ... .- _ - -
I -Vickers hrrrdness ...
Mill ffV5 Mtx
140 .-. .. .... .... 220* -.__-=-.
220 . 300 -. .
.... . 250
*260 144Jx for cold-forged __ .
2, ( 1IS,;C
nllts.
lrijlmulmy
Adfe, j~t~~1 o~~ ) l~cl~~c IS :8856-1978
( I:DC
27 ) /
--printed mr New Indim Irintinl Prcso, Khuria, I!lt:i,t
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