行业组件数据 · 2026

紧固孔

Precision-drilled holes in mounting frames designed for secure component attachment using bolts, screws, or rivets in industrial machinery.

技术定义与适配语境
典型 紧固孔 会按材料、尺寸公差、适配关系和失效风险在 机械和设备制造 中评估。

Fastening holes are engineered apertures in mounting frames that provide precise locations for securing components through mechanical fasteners. These holes are typically drilled, reamed, or tapped to exact specifications to ensure proper alignment, load distribution, and vibration resistance in industrial applications. They serve as critical connection points that maintain structural integrity while allowing for assembly, disassembly, and maintenance of machine components.

组件规格

定义
Fastening holes are engineered apertures in mounting frames that provide precise locations for securing components through mechanical fasteners. These holes are typically drilled, reamed, or tapped to exact specifications to ensure proper alignment, load distribution, and vibration resistance in industrial applications. They serve as critical connection points that maintain structural integrity while allowing for assembly, disassembly, and maintenance of machine components.
工作原理
Fastening holes work by providing geometrically precise locations where mechanical fasteners (bolts, screws, rivets) can be inserted to create secure connections between the mounting frame and attached components. The holes distribute clamping forces evenly across the frame material, preventing stress concentration while maintaining alignment. Threaded holes create internal mating surfaces for screws, while through-holes allow bolts to pass through for nut fastening on the opposite side.
材料
Typically matches the mounting frame material: carbon steel (A3610181045)stainless steel (304316)aluminum alloys (60617075)or engineered plastics. Hole surfaces may have additional treatments: zinc platinganodizingor passivation for corrosion resistance.
thread class
6H for internal threads, 6g for external threads
surface finish
Ra 1.6μm to 3.2μm
countersink angle
82°, 90°, or 100°
positional tolerance
±0.05mm to ±0.2mm
minimum edge distance
1.5× hole diameter
hole diameter tolerance
±0.1mm to ±0.01mm
标准
ISO 273ISO 4759-1DIN 76-1DIN 931ASME B18.2.1

行业分类与别名

紧固孔 的常用贸易名称、技术标识和检索关键词。

上级产品

该组件会出现在以下整机或工业产品中。

FMEA · 风险与缓解

诱因 → 失效模式 → 工程缓解

Incorrect hole diameter or positional tolerance->Misalignment during assembly leading to improper fastener seating->Implement statistical process control (SPC) for drilling operations and use coordinate measuring machines (CMM) for verification
Insufficient edge distance around holes->Material tearing or cracking under load->Follow design standards for minimum edge distance (typically 1.5× hole diameter) and conduct finite element analysis (FEA) for stress distribution
Corrosive environment without proper surface treatment->Reduced fastener grip strength and potential seizure->Apply appropriate coatings (zinc plating, anodizing) and specify corrosion-resistant materials for harsh environments

工业生态与工程逻辑

0
Thread stripping from over-torquing
1
Hole elongation from cyclic loading
2
Corrosion in harsh environments
3
Misalignment causing stress concentration
4
Fatigue failure at hole edges

合规与检测

tolerance
ISO 2768-mK for general tolerances, ISO 4759-1 for thread tolerances
test method
Coordinate measuring machine (CMM) verification, go/no-go gauge testing, torque testing per ISO 16047, salt spray testing per ASTM B117 for corrosion resistance

制造该组件的工厂

来自 CNFX 组件能力表的相关制造商资料。

制造商列表用于前期研究和供应商能力理解,不代表认证、排名或交易担保。

采购评估维度

不是客户评论,也不是实时热度。以下维度用于前期 RFQ 准备和供应商评估。

技术文档
4/5
制造能力
4/5
可检验性
5/5
供应商透明度
3/5

这些分值是采购评估维度示例,不代表真实客户评分、具体国家买家反馈或实时询盘。

相关组件

常见问题

What are the most critical tolerances for fastening holes in mounting frames?

Positional tolerance (±0.05mm-0.2mm) and diameter tolerance (±0.01mm-0.1mm) are most critical as they ensure proper alignment and fastener fit, preventing misalignment, stress concentration, and assembly issues.

How do I select the right fastening hole type for my application?

Consider load requirements (shear vs. tensile), environmental conditions (corrosion resistance), assembly frequency (threaded vs. through-holes), and material compatibility. Through-holes with nuts are best for high-load applications, while threaded holes suit frequent disassembly needs.

What maintenance do fastening holes require?

Regular inspection for wear, corrosion, or thread damage; cleaning to remove debris; lubrication of threaded holes; and torque verification during reassembly to prevent loosening from vibration.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

CNFX 制造商资料、技术分类、公开产品信息和持续合理性检查。

初步技术归类
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URN:CNFX:ME:UNIT:FASTENING_HOLES