基本信息
文件名称：WC900-20040901-六角头螺栓和圆锥弹簧垫圈组合的一般要求-eng.pdf
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更新时间：2025-03-28
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文档摘要
WORLDWIDEFASTENERSTANDARD
WC900Date:2004-09-01
WC900
GeneralSpecificationforHexagonHeadScrewandConicalSpringWasherAssemblies
Table1.
Dimensionsinmm
NominalSizeM4M5M6M8M10M12
SWidthAcrossFlats5.578101315
5.386.787.789.7612.7314.7
eWidthAcrossCorners6.358.089.2411.5515.0117.32
6.037.598.7110.9314.2613.46
k1)HeadHeight3456.27.18.85
2.73.74.75.86.68.25
kWrenchingHeight22.73.44.24.85.95
(Min.)
1)Embossedheadmarkings(SeeWA950)areexcludedfromheadheightmeasurementbutmustnot
protrudemorethan0.4.
2)amax.shallbethefreeheightoftheassembledwasher(SeeWF900)plus2pitches.
Dimensions
HeaddimensionsshallconformtoTable1andFigure1.Thediameteroftheplainshank(unthreadedportion)mustbe