Aerospace. Bolts, with MJ threads, made of alloy steel, strength class 1250 MPa. Procurement specification Ingestion-build-177197 BS 3401 provides you with

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Aerospace. Bolts, with MJ threads, made of alloy steel, strength class 1250 MPa. Procurement specification Ingestion-build-177197 BS 3401 provides you with1 Scope This International Standard specifies the characteristics and quality assurance requirements for MJ thread bolts made of alloy steel, of strength class 1 250 MPa, for aerospace construction. It is applicable whenever it is referenced in a definition document.