Tolerances for Metal Products
Define the dimensions that matter to your part’s fit and function. For a stamped metal part or a metal insert used with rubber or plastic, include the drawing revision, units, material, thickness and any required finish with your quote request.
What to include on the drawing
Identify the dimensions that control assembly and any required datums, geometric tolerances and inspection methods. State the drawing standard and edition used. Identify whether each dimension applies before or after forming, coating, bonding or molding.
Metal inserts and combined assemblies
Show which requirements apply to the metal insert and which apply to the finished assembly. Include the mating-part requirements and identify the surfaces that must stay free of coating, adhesive or molding material.
Confirm requirements before production
Send your drawing or sample with the expected order quantity and annual volume. Ask us to review the requested tolerances, inspection requirements and any unresolved drawing details before the order is released. Do not use the rubber RMA tolerance tables as the specification for a metal part.
