Engineering Resources

Engineering Data
Engineering Reference Handbook
How to Specify Custom Parts

Engineering Data

Dimensioning Symbols
Finish Abbreviations
Material Characteristics—Non-Metals
Material Characteristics—Metals
Material Finish Characteristics
Material & Finish Specifications
Metric Conversion Table
Screw Size & Decimal Equivalent Charts
Standard Manufacturing Thicknesses
Table of Properties—Metallic Materials
Table of Properties—Non–Metallic Materials
Workmanship Acceptance Standards
Dimensioning Symbols

Characteristics American
ANSI Y14.5		 Canadian
CSA B78.2 / ISO 1101
Straightness Same
Flatness Same
Roundness (circularity) Same
Cylindricity Same
Profile of a line Same
Profile of a surface Same
Parallelism Same
Perpendicularity (squareness) Same
Angularity Same
Position Same
Concentricity (coaxiality) Same
Symmetry Same
Maximum material condition Same
Diameter Same
Circular runout Same
Total runout Same
Datum feature
Basic dimension Same
Regardless of feature size Same
Projected tolerance zone Same
Datum target Same


WASHERS DIVISION of the
Precision Metalforming Association
27027 Chardon Road, Cleveland, Ohio 44143		 Date:
2-1-92
Data Sheet No.
WD1007

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