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Indian standard code on washers
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UDC 621’882’4 : 624’014’2 ( Third Reprint AUGUST 1997 ) IS:6610- 1972
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Indian Standard
SPECIFICATION FOR
HEAVY WASHERS FOR STEEL STRUCTURES a
1. Scope - to 42 mm.
Requirements for heavy washers for use in steel structures in the diameter range 14
2. Dimensions - The dimensions of heavy washers shall be according to Table 1.
3. Material -Washers covered in this standard shall be made from steel.
4. Designation - The washers shall be designated by the nominal size and the number of this standard.
Example: A heavy washer having a nominal size of 14. mm and conforming to this standard shall
be designated as: Washer 14 IS : 6610
5. Other Requirements- Other requirements for the heavy washers not covered in this standard shall conform to the requirements applicable for black washers dpecified in IS : 5369-l 969 ’ General requirements for plain washers and lock washers ‘.
TABLE 1 DIMENSIONS FOR HEAVY WASHERS FOR STEEL STRUCTURES
All dimensions in millimetres.
. iOl 0 21115
Nominal Size, dl d2 S Suitable for Bolt Size
Tolerance W4)
+ 0’43 + 0’43 + 0’52 + 0’52 f 0’62 + 0’52 + 0’62 + 0’62 + 0’62 + 0’62
Basic
f: 37 39
z: 56 60
;;
Tolerance W6)
- 1’30 - 1’30 - 1’60 - 1’60 - I.60 - 1’60 - 1’90 - 1’90 - 1’90 - 1’90
8” Ml2 Ml6
8 M20
t M22 M24 M27
: M30 8 M33
M36 8” M39
_~~ _~
EXPLANATORY NOTE
In the preparation of this standard assistance has been derived from Dot : ISO/TC 2( 457 1 8 Proposal for high washers for hexagon bolts for steel structures, Metric series ‘.
Adopted 1 August 1972 I
@ October 1972, 6 IS I
Gr 1 __
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG
NEW DELHI 110002