spring pins M8×1.25-6h external thread...
Gen-1 Elastic Locating Pin (M8 Thread-Mount Type)
Product photos
Actual photos, not renders
The photos show this actual specification; appearance varies with surface treatment and head type — the delivered parts prevail.
Product description
Compiled from the existing technical description of this product on this site
The Gen-1 elastic locating pin is a thread-mounted elastic locating pin developed by YF Zhichengjia for bearing fixation in NEV electric drive systems. Its core is a spring-driven dual-state structure: in the rest state the pin head stays popped out under spring force and, once engaged in the retaining-ring groove of the bearing outer ring, firmly restricts outer-ring rotation, preventing wear, noise and accuracy loss caused by outer-ring spin during operation; during assembly the pin head can be pressed back into the body and automatically pops out again when the outer ring rotates to the groove position, suiting severe applications with no reserved axial clearance after assembly. The product features M8×1.25-6h external thread with hex drive, grade 8.8 load capacity, zinc-nickel alloy natural finish with pre-applied precote 85-3 threadlocker, plus an airtight structural design, meeting the combined requirements of e-drive assemblies for locking reliability, assembly efficiency and sealing.
Specifications
Parameters on this page are subject to factory inspection and the applicable standards; items not listed follow the customer's drawing or order agreement, with no default commitment.
| Installation | M8×1.25-6h external thread, hex drive |
|---|---|
| Surface treatment | Zinc-nickel natural finish + precote 85-3 pre-applied adhesive |
| Overall height | 14.5±0.25 mm |
| Pin diameter | Ø2.5±0.025 mm |
| Pin protrusion | 3.2~4 mm |
| Spring compression force | 2~5 N |
| Pin hardness | HRC 22-32 |
| Bolt property class | Grade 8.8 |
| Airtight design | Pressure drop <5Pa at 50kPa/2s |
| Structure reference | Drawings customized to OEM operating conditions; spring-pin structures may refer to the GB/T 879 series (ISO 8752). |
Spec lookup
Look up directly among the 4 models of this series by your operating conditions — pure front-end filtering, no redirects, no URL changes.
Filtering results are based on the specification fields published on each model page and serve as a preliminary screen only; final selection must be confirmed against actual load, sheet thickness and assembly process.
Drawings & customization
No public catalog for this series yet; drawing-based requirements are handled per project
Made to drawing / sample replication
Send a 2D drawing or a physical sample for evaluation; after confirmation we proceed with CAD output, prototyping, first-article approval and then volume production. Drawing and project information are treated as confidential.
Manufacturing process
Typical process route for this product category; actual operations follow the drawing and order requirements
- Coil formingStrip material coiled into the spring pin
- Heat treatmentElasticity and hardness control
- Surface treatmentBlack oxide / zinc plated
- Elasticity verificationInsertion and extraction force testing
Capacity & delivery
Based on the company's published capacity and certification information; no unverified claims
Related models
Alternative sizes in the same series and cross-series fasteners commonly used together
spring pins
Elastic Locating Pin
YF Zhichengjia elastic locating pins use an elastic self-locking structure for precise location
spring pins
Gen-3 Elastic Locating Pin (Long Press-in Type)
Threadless cylindrical press-in type
spring pins
Gen-2 Elastic Locating Pin (Short Press-in Type)
Threadless cylindrical press-in type
Riveting and clinching series
1.2mm ultra-thin clinch nut
1.2mm ultra-thin clinch nut, custom-made for thin sheet metal, hardened alloy steel
