T/FQIA 019-2023 Active
T/FQIA 019-2023 Hexagonal Flange Serrated Lock Nut Assembly
Abstract
Scope: This document specifies the technical requirements, test methods, inspection rules, marking, packaging, storage, and maintenance of hexagonal flange anti-loosening combination nuts. This document applies to hexagonal flange anti-loosening combination nuts with thread specifications of M18 to M30 and made of high-quality alloy structural steel. Main technical content: 1. Scope: This document specifies the technical requirements, test methods, inspection rules, marking, packaging, storage, and maintenance of hexagonal flange anti-loosening combination nuts. This document applies to hexagonal flange anti-loosening combination nuts with thread specifications of M18 to M30 and made of high-quality alloy structural steel. 2. Main technical content: 1. Scope 2. Normative references 3. Terms and definitions 4. Technical requirements 4.1 General requirements 4.2 Materials 4.3 Structural types and main dimensions 4.4 Mechanical properties 4.5 Threads 4.6 Decarburization layer 4.7 Anti-loosening performance 4.8 Product defects 4.9 Surface treatment 4.10 Marking 5. Test methods 5.1 Structural types and main dimensions 5.2 Mechanical properties 5.3 Thread inspection 5.4 Decarburization layer 5.5 Anti-loosening performance 5.6 Surface treatment 6. Inspection rules 6.1 General provisions 6.2 Batch inspection 6.3 Inspection items 6.4 Type inspection 6.5 Judging rules 7. Marking, packaging, storage, and maintenance
General Product Information
| Document Type | Group standards |
|---|---|
| Standard Status | Active |
| Standard Code | T/FQIA 019-2023 |
| ICS | \nNut |
| Implement Date | 2023-12-30 |