行业组件数据 · 2026

紧定螺钉/夹紧螺栓

A precision fastener used to secure tool holders in machining centers by applying radial clamping force.

技术定义与适配语境
典型 紧定螺钉/夹紧螺栓 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。

A set screw or clamp bolt is a specialized threaded fastener designed for securing tool holders in CNC machining centers, milling machines, and lathes. It functions by applying controlled radial clamping force through mechanical tightening, creating friction between the tool holder and machine spindle to prevent rotation and axial movement during high-speed operations. These components are engineered for precise torque transmission and vibration damping in industrial machining applications.

组件规格

定义
A set screw or clamp bolt is a specialized threaded fastener designed for securing tool holders in CNC machining centers, milling machines, and lathes. It functions by applying controlled radial clamping force through mechanical tightening, creating friction between the tool holder and machine spindle to prevent rotation and axial movement during high-speed operations. These components are engineered for precise torque transmission and vibration damping in industrial machining applications.
工作原理
Works through mechanical interference and friction locking. When tightened, the screw's tip (often with specific geometry like flat, cone, or cup point) presses against the tool holder, creating radial clamping force. This force generates sufficient friction between the tool holder and machine spindle to resist rotational torque and axial forces during machining operations, while allowing for quick tool changes when loosened.
材料
Typically made from alloy steels (AISI 41404340) or tool steels (HSS) with hardness 45-55 HRC. High-performance versions use carbide-tipped contact points. Surface treatments include black oxidezinc platingor titanium nitride coating for corrosion resistance and reduced friction.
Length
20-100 mm
Head Type
Hex socket, Torx, or spline drive
Point Type
Cup point, flat point, cone point, or dog point
Thread Size
M6 to M24
Torque Range
10-200 Nm
Clamping Force
5-50 kN
标准
ISO 4762DIN 912ISO 4026

行业分类与别名

紧定螺钉/夹紧螺栓 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

Improper torque application->Tool holder slippage during machining->Use calibrated torque wrenches and follow manufacturer specifications
Material fatigue from cyclic loading->Fracture during operation->Implement regular inspection schedule and replace at recommended intervals
Corrosion from machining coolants->Seizing in threaded holes->Use corrosion-resistant coatings and proper sealing

工业生态与工程逻辑

0
Over-torquing causing thread stripping
1
Under-torquing leading to tool slippage
2
Fatigue failure from cyclic loading
3
Corrosion in coolant environments
4
Compatibility issues with non-standard tool holders

合规与检测

tolerance
Thread tolerance: 6g per ISO 965-1, Length tolerance: ±0.5 mm, Hardness tolerance: ±2 HRC
test method
Torque-to-failure testing per ISO 16047, Salt spray testing per ISO 9227, Fatigue testing with cyclic loading at 80% of rated torque

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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 is the difference between a set screw and a clamp bolt?

Set screws typically have full threading and are designed to bear against a surface, while clamp bolts often have partial threading and work with nuts or threaded holes in clamping assemblies. In tool holder applications, the terms are often used interchangeably for components that apply radial clamping force.

How often should tool holder clamp bolts be replaced?

Inspect every 6-12 months or after 10,000 clamping cycles. Replace if there is visible wear, thread damage, or if torque values drop below 80% of specification. Regular maintenance prevents tool slippage and maintains machining accuracy.

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CNFX Industrial Component Index · 机械和设备制造

数据基础

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初步技术归类
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说明目标数量、应用场景、交期和关键技术要求,用于准备 RFQ 或供应商评估。

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URN:CNFX:ME:UNIT:SET_SCREW_CLAMP_BOLT