We were presented with the challenge of having custom 12 socket cap screws made out of Invar 36 material to a provided print in a relatively short period of time, which is essentially a 36% nickel iron alloy material, with matching finished hex nuts. This material is typically used for applications where dimensional properties must be maintained across a broad range of temperatures. We were able to have the parts produced and delivered within 3 weeks of order date. While in this specific case no certifications were required, various documentation would have been available to the customer if requested and required.