Iso 20457 Tolerance Table Pdf Page

PT2 tolerance: ±0.30 mm

ISO 20457 is an indispensable tool for anyone involved in the design, molding, or sourcing of plastic parts. By using its tolerance tables and systematic approach, you can avoid costly rework, ensure proper assembly, and achieve reliable quality. The shift from experience-based guesswork to a structured system like ISO 20457 is a foundational step in professionalizing plastic parts engineering.

When manufacturing plastic parts, achieving precise dimensions is significantly more challenging than working with metals. Shrinkage, material composition, and molding conditions all introduce variability. To standardize these variations, the International Organization for Standardization introduced ("Plastics molded parts — Tolerances and acceptance conditions"), which officially replaced the older DIN 16742 standard. iso 20457 tolerance table pdf

To obtain the verified, complete PDF with all technical annexes, material matrices, and advanced geometric tolerance rules, you can purchase it directly from official standard bodies:

The (Tolerance Group 6) is a commonly used general tolerance for simple production settings. Below is the technical data for nominal dimension ranges (all values in mm) as referenced from sources like OKW Gehäusesysteme . Nominal Range (Over) W (Tool-Specific) NW (Non-Tool-Specific) PT2 tolerance: ±0

National standards institutes (such as DIN, AFNOR, BSI, or ANSI)

It includes specifications for surface profiles, angular dimensions, and tool offsets (parting lines). OKW Gehäusesysteme Reference Documents & Tables To obtain the verified, complete PDF with all

Standardization bodies and technical sites provide the complete document for a fee or as a preview:

Download our free ISO 20457-compliant tolerance table template (PDF) — fill in your material and process class to generate custom tolerances. (Link placeholder)