Product Parameters
| Item | Specification |
|---|---|
| Material | Stainless Steel (303, 304, 316), Carbon Steel |
| Head Style | Pan, flat, button, hex, socket heads |
| Thread | Metric (M1–M12), Imperial (0000–1/2") |
| Drive | Phillips, Phillips II, hex, socket, Torx |
| Application | Precision assembly, electronics, instrumentation |
| MOQ | 100 pcs |
description
Precision machine screws are the small fasteners used in precision assembly - electronics, optical equipment, instrumentation, medical devices, and any application where the fastener is part of the product rather than just a structural connector. The small size and precision manufacture of machine screws serve these applications where dimensional accuracy matters. 303, 304, and 316 stainless are the most common materials - 303 free-machines well for production economy, 304 is the standard stainless, and 316 provides chloride resistance for marine or outdoor applications. Carbon steel machine screws are used where strength matters more than corrosion resistance. The head style and drive type are selected based on the assembly requirements - Phillips or Pozidriv for convenient hand driving, hex or socket drives for high torque or precision adjustment, Torx for higher driving torque with less driver cam-out.
Drive Type for Your Assembly
Phillips and Pozidriv: easy hand alignment, prone to cam-out on high-torque installs. Hex socket: positive engagement, handles higher torque, requires hex key. Torx: designed to prevent cam-out, higher torque than Phillips, best for production assembly. For precision instruments: hex socket or Torx - you want the driver to stay in place when you are aligning components under magnification.
FAQ
Q1: MOQ?
A1: 100 pieces for standard machine screws.
Q2: Materials?
A2: 303, 304, 316 stainless. Carbon steel for strength-critical applications.
Q3: Head styles?
A3: Pan, flat, button, hex, socket - selection depends on assembly requirements.
Q4: Drive types?
A4: Phillips, hex, socket, Torx - hex and socket for precision adjustment.
Q5: Thread methods?
A5: Rolled threads (stronger) vs. cut threads (more precise pitch/lead).
Q6: Custom configurations?
A6: Yes. Custom lengths, thread specifications, materials, head styles.
Quality is non-negotiable in precision manufacturing. Every component undergoes rigorous inspection at each stage of production.
- ISO 13485 - Full FDA compliance support; quality management system for medical device components
- ISO 11607 / FDA 21 CFR 820 - Packaging and sterilization validation for implantable and surgical devices
- ASTM F136 / F67 - Material specification compliance for implant-grade titanium and stainless
- First Article Inspection (FAI) - Full dimensional and functional report for every medical component
- CMM Inspection - Coordinate measuring for complex geometries and tight tolerances
- Surface Roughness Measurement - Ra, Rz, and Rt charting with every inspection report
- Passivation / Electropolishing - ASTM A967 procedures for corrosion resistance
- Material Traceability - Heat number tracking from raw material to finished part
From raw material to finished product, every step is controlled and documented:
- Wire / Bar Preparation - Cold heading or CNC blanking to near-net shape
- Thread Rolling / Cutting - Thread rolling for rolled threads or die cutting for cut threads
- Heat Treatment - Case-hardening or through-hardening for strength requirement
- Surface Treatment - Plating, coating, or passivation as specified
- Final Inspection - Dimensional check, torque testing, and surface inspection
- Packaging - Bulk bag, polybag, or plastic tub with labeling and traceability
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