---
title: "Fastening System"
industry: "Fabricated Metal Product Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:FASTENING_SYSTEM"
  data_integrity_hash: "c5cf37e43f3b39f61cbf1020e5626ed7"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:FASTENING_SYSTEM"
  data_source_uri: "https://cnfx.com/llms/industry/fabricated-metal-product-manufacturing/product/fastening-system.md"
  official_resource_url: "https://cnfx.com/industry/fabricated-metal-product-manufacturing/product/fastening-system"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-25 kN clamping force, -40°C to 150°C temperature range, 0.1-0.3 mm vibration amplitude tolerance"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 0.3
    unit: "kN"
    consequence: "Stress relaxation due to creep at sustained temperatures above 120°C, fretting fatigue from cyclic shear stresses at contact interfaces exceeding 150 MPa, bolt preload loss from thread deformation under combined thermal and vibrational loading"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Thermal expansion mismatch between fastener material (steel, α=12×10⁻⁶/°C) and panel material (aluminum, α=23×10⁻⁶/°C)"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Implementation of Belleville washers with 0.15 mm deflection at 10 kN to maintain constant tension, use of Invar 36 fasteners (α=1.2×10⁻⁶/°C) for matched thermal expansion"
  - node_2:
      trigger: "Resonant vibration at 85-120 Hz matching natural frequency of fastener-panel assembly"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Application of thread-locking adhesive with 20 N·m breakaway torque, redesign to shift natural frequency to 180 Hz using increased fastener stiffness (E=210 GPa) and reduced unsupported length to 12 mm"
bom_nodes:
  fastening-clamp:
    type: "component"
    urn: "URN:CNFX:ME:FASTENING_CLAMP"
    interface_type: "physical-logic-coupled"
  tensioning-bolt:
    type: "component"
    urn: "URN:CNFX:ME:TENSIONING_BOLT"
    interface_type: "physical-logic-coupled"
  mounting-bracket:
    type: "component"
    urn: "URN:CNFX:ME:MOUNTING_BRACKET"
    interface_type: "physical-logic-coupled"
  locking-mechanism:
    type: "part"
    urn: "URN:CNFX:ME:LOCKING_MECHANISM"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
url: "https://cnfx.com/llms/industry/fabricated-metal-product-manufacturing/product/fastening-system.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "86d5164c88b9359310a1bc180a1bfd35f4a46cf95387cdcb98e3cb92abe0b09f"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Fastening System

## 1. Technical Definition
A mechanical assembly designed to securely attach and hold screen panels in place within industrial equipment.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-25 kN clamping force, -40°C to 150°C temperature range, 0.1-0.3 mm vibration amplitude tolerance**. Failure boundary: **Clamping force drops below 0.3 kN, fastener elongation exceeds 0.5% of original length, vibration amplitude surpasses 0.5 mm at 100 Hz**, Mechanism: **Stress relaxation due to creep at sustained temperatures above 120°C, fretting fatigue from cyclic shear stresses at contact interfaces exceeding 150 MPa, bolt preload loss from thread deformation under combined thermal and vibrational loading**.

### 2.1 Analytical Physics Model
Governed by the **Frame Structural Deflection Analysis**:

> **Primary Equation**: $\delta = \frac{5 q L^4}{384 E I}$  
> **Engineering Impact**: Ensures structural stability for multi-stage machines.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| q | Uniform Load | Engineering Constant |
| E | Elastic Modulus | Engineering Constant |
| I | Moment of Inertia | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Thermal expansion mismatch between fastener material (steel, α=12×10⁻⁶/°C) and panel material (aluminum, α=23×10⁻⁶/°C) | 8 | Clamping force reduction to 40% of initial preload after 1000 thermal cycles between 20°C and 100°C | Implementation of Belleville washers with 0.15 mm deflection at 10 kN to maintain constant tension, use of Invar 36 fasteners (α=1.2×10⁻⁶/°C) for matched thermal expansion |
| Resonant vibration at 85-120 Hz matching natural frequency of fastener-panel assembly | 8 | Fatigue fracture at first engaged thread root after 10⁷ cycles at 0.4 mm amplitude, stress concentration factor Kt=3.2 | Application of thread-locking adhesive with 20 N·m breakaway torque, redesign to shift natural frequency to 180 Hz using increased fastener stiffness (E=210 GPa) and reduced unsupported length to 12 mm |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Locking Mechanism](https://cnfx.com/llms/industry/fabricated-metal-product-manufacturing/product/locking-mechanism.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **Panel Bending Machine**, **Laser Cutting System**, **Industrial Welding Station**  
**Downstream Applications**: Vibrating Screen Separators, Industrial Sieving Equipment, Material Processing Screens  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are available for this fastening system?
**A**: This fastening system is available in three durable materials: stainless steel for corrosion resistance, carbon steel for high strength, and aluminum alloy for lightweight applications.

### Q: How does the locking mechanism ensure secure panel attachment?
**A**: The locking mechanism provides positive engagement with the mounting bracket and tensioning bolt, preventing vibration-induced loosening and maintaining consistent clamping force on screen panels.

### Q: Can this fastening system be customized for specific industrial equipment?
**A**: Yes, the system components including fastening clamps, mounting brackets, and tensioning bolts can be configured to match specific equipment dimensions and load requirements in fabricated metal manufacturing.

## 6. Manufacturing Compliance

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Fastening System](https://cnfx.com/industry/fabricated-metal-product-manufacturing/product/fastening-system)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **4** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: FASTENING_SYSTEM | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: dacc7179
