OSTs for fastener manufacturing
This is an informational translation of a Russian national standard. The Russian original is authoritative.
OSTs for fasteners are regulatory documentation for fastener products manufactured according to industry standards. These documents set requirements for product quality and technical characteristics in specific industries. This section presents specifications for OST fasteners in doc, PDF and text formats.
Bolts, design and dimensions (7)
Screws, design and dimensions (3)
Nuts, design and dimensions (3)
Purpose and scope of application
Industry standards are approved by ministries and agencies, establishing norms, terms, rules and designations for a limited range of fasteners with intra-industry application. They also address situations requiring control before a GOST is issued.
Fasteners manufactured according to OSTs are used in the following industries:
- military and defense;
- aviation and space;
- radio engineering manufacturing;
- shipbuilding;
- agriculture.
OST bolts, screws, studs and nuts do not differ in quality from products manufactured to GOST standards. The specification for each type of fastener under an industry OST standard necessarily includes a detailed design drawing and establishes geometric dimensions, thread characteristics and technical requirements. In addition, permissible deviations and delivery set are specified.
Industry standards for fasteners are mandatory for enterprises in the given industry and for organizations in other industries that use fastener products. The degree of mandatory compliance is determined by the manufacturer, and compliance with the adopted norms is monitored by the relevant agency.
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