ISO 16228:2017 specifies the different types of fastener inspection documents issued by the fastener manufacturer or distributor and/or by the external authorized representative on specific request of the purchaser at the time of the order.

- declaration of compliance (F2.1);

- test reports (F2.2, F3.1 and F3.2).

NOTE The term "certificate" is in common use, however for fastener inspection documents the terminology to be used is "test report".

ISO 16228:2017 specifies requirements for the content of each fastener inspection document, in conjunction with the order, the relevant standards and/or specified requirements.

ISO 16228:2017 is applicable to finished fasteners such as bolts, screws, studs, nuts, washers, pins, rivets, etc. made of steel, stainless steel, non-ferrous metal or non-metallic material.

ISO 16228:2017 does not apply to special-purpose or specially engineered applications requiring other types of procedures (e.g. initial samples).

Examples of inspection documents are given in Annex A. An example of a coding system identifying the sections in fastener inspection documents is given in Annex B.