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304 Stainless Steel Socket Head Shoulder Screw
This precision shoulder stop bolt is specially designed for precision equipment. Integrally CNC turned from corrosion-resistant 304 stainless steel, with integrated structure of cylindrical positioning shoulder, external thread and socket head cap. It realizes precise equipment limit positioning, axial locking fixation and concentric assembly, which is a high-precision positioning fastening part for automation, mold and precision equipment.
- Processing Equipment: Swiss-type CNC lathe, CNC lathe, Turn-Mill Machining Center
- Shoulder Concentricity Accuracy: ≤0.005mm
- Dimensional Accuracy: ±0.008mm
- Thread Accuracy: Grade 6g Precision Tolerance
- Surface Roughness: Ra 0.8 ~ Ra 1.6
- Material: Stainless Steel
- Production Capabilities: Prototyping, Low-volume Customization, Mass-volume Production
- Structure Form: Integrated shoulder positioning section, precision external thread, cylindrical socket head cap
- Mounting Form: Shoulder concentric positioning, socket head locking, axial stop limit, module & frame fixation
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Low-volume mill-turn machining requires minimizing setups while maintaining dimensional consistency. KT’s mill-turn machines complete both turning and milling operations in a single setup, reducing cumulative errors and ensuring precision and concentricity for complex parts. With standardized programming and first-article locking, we achieve repeatable results across small batches—shortening lead times and reducing production risk.
Detailed Description
This precision shoulder socket screw is a special concentric limit fastener for mold fixtures, automation modules and precision transmission mechanisms. Integrally CNC turned from stainless steel bar, the smooth shoulder section acts as precise stop position to embed into mounting holes for concentric positioning and gap limit. Precision external thread on tail matches nuts for locking, socket head cap allows torque tightening. It completely solves eccentricity, shake and inaccurate positioning problems of standard screws, greatly improves assembly concentricity and operation stability. It is corrosion-resistant, rust-proof, high-rigidity and wear-resistant, with excellent batch consistency and thread interchangeability.
Application Industries（Automation industry bracket removed as required）
🏭 Automation Equipment Industry
Automation module slide positioning screws, frame component concentric stop bolts, fixture limit locking screws, precision equipment mounting positioning pins
🤖 Industrial Robot Industry
Robot end effector positioning bolts, robot 7th axis stop mounting screws, robot fixture concentric locking parts, robot joint positioning fasteners
✈️ Aerospace Supporting Industry
Aviation precision fixture positioning screws, aerospace ground test equipment stop bolts, aviation lightweight precision fasteners, aerospace fixture concentric locking parts
🚗 Automotive Intelligent Manufacturing Industry
Auto mold shoulder stop bolts, parts assembly line concentric locking screws, automotive welding fixture positioning fasteners, vehicle inspection equipment mounting screws
🔬 Semiconductor & Electronics Industry
Semiconductor equipment frame positioning screws, chip inspection fixture stop bolts, SMT equipment precision positioning fasteners, electronic assembly concentric locking parts
📦 Logistics Conveying & Laser Processing Industry
Logistics conveyor frame positioning bolts, laser equipment body concentric mounting screws, laser cutting fixture positioning locking parts, packaging equipment precision positioning fasteners
Detailed Parameter Table
| Parameter Item | Technical Specification |
|---|---|
| Product Name | Socket Head Shoulder Stop Screw / Positioning Shoulder Bolt |
| Main Material | 304 Stainless Steel (316 Stainless Steel / 45# Steel / 12.9 High Strength Alloy Steel optional) |
| Manufacturing Process | Swiss-type CNC Turn-Mill Precision Machining |
| Shoulder Concentricity | ≤0.005mm |
| Dimensional Tolerance | ±0.008mm |
| Thread Accuracy | Grade 6g Precision Tolerance |
| Surface Roughness | Ra 1.6 (As-finish turned) / Ra 0.8 (Fine ground & polished) |
| Structure Form | Integrated shoulder stop + external thread + cylindrical socket head cap |
| Surface Treatment | Stainless steel natural passivation, electropolishing; Carbon steel blackening / galvanizing |
| Production Capabilities | Prototyping, Low-volume Customization, Mass-volume Production |
| Working Conditions | Precision concentric positioning, axial locking fixation, normal temperature industrial assembly environment |
