Roymech engineering encyclopedia

Surface Finish (Texture) Symbols

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Surface Finish (Texture) Symbols

BS EN ISO 1302:2002 Geometrical product specifications (GPS). Indication of surface texture in technical product documentation

General indication of surface texture on drawings

For notes on surface roughness use link Surface Roughness Notes

Requirement for machining

Direction of lay

Machining Allowance

The Symbol indicates the surface finish requirements and shows a machining allowance requirement of 3mm on all surfaces.  

Symbol for surface texture all component surfaces

The Symbol indicates that all of the component surfaces are to be machined...

Location of Surface Texture Symbols

The shows typical locations for surface texture symbols...