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Our stainless steel knurled round head positioning screw is a one-piece CNC turning precision machined component custom manufactured for industrial fixture and tooling positioning. We process solid 304 stainless steel bar raw material through dedicated diamond knurling, CNC lathe forming of full thread and smooth round dome head, followed by full deburring, ultrasonic cleaning and bright passivation surface treatment. The middle knurled section delivers friction anti-slip grip for manual adjustment without extra tools, while uniform external threads and smooth round locating head guarantee stable, repeatable positioning performance on jigs, assembly fixtures and automated equipment. As a professional CNC turning OEM manufacturer, we accept fully customized dimensional, material and surface finish modifications per your engineering drawings or physical samples. All finished studs hold strict precision dimensional tolerances to meet high-precision industrial assembly requirements.
Technical Specification
Product Name
Precision Fixture Positioning Stud
Raw Material
SUS304 Stainless Steel Solid Bar
Overall Length
13.8mm
Knurl Outer Diameter
4.9mm, Diamond Anti-slip Knurling Pattern
Thread Outer Diameter
2.9mm, CNC Turned Unified Thread
Machining Tolerance
±0.01mm Precision Dimensional Control
Forming Process
Integral CNC Turning + Bar Stock Knurling
Post Processing
Full Deburring, Ultrasonic Cleaning, Bright Passivation Anti-rust Treatment
Structure
One-piece integrated round dome head + knurled grip section + full external thread
Anti-slip diamond knurl design eliminates slipping during manual adjustment, solving slippery smooth body positioning screw operation failure issues.
One-piece CNC turning integrated structure avoids loose assembly between separate grip and locating head, preventing positioning offset during repeated use.
SUS304 stainless steel + bright passivation finish resists rust & oxidation, solving short service life of carbon steel fasteners in humid workshop environments.
±0.01mm strict dimensional tolerance ensures consistent positioning accuracy, eliminating fixture misalignment caused by low precision standard fasteners.
Uniform full thread machining delivers stable thread fit, solving loose thread jitter problems during frequent adjustment.
Smooth round dome locating head prevents surface scratch to workpiece, avoiding product surface damage during clamping positioning.
Direct OEM custom service avoids middleman markup, cutting procurement cost for fixture manufacturers.
Quality Control
Raw Material Inspection: Spectral testing to verify 304 stainless steel material composition before production.
In-process Machining Inspection: Real-time caliper & micrometer dimensional check during CNC turning and knurling.
Surface Treatment QC: Rust resistance salt spray test for passivated finished components.
Final Full Inspection: Visual deburr check, thread go/no-go gauge testing, surface finish screening before packaging.
Batch Sample Retention: Reserve inspection samples for all production batches for traceability.
Custom Test Reports: Provide dimensional inspection reports and material certification upon customer request.
FAQ
Can you produce custom size knurled positioning studs based on my drawings? Yes, we are an OEM CNC turning manufacturer, we fully support custom dimension, thread and shape processing from your CAD drawings or samples.
What precision tolerance can your CNC turning locating pin achieve? Standard tolerance is ±0.01mm, we can customize ultra-tight tolerance up to ±0.005mm for high-precision industrial fixture use.
What surface treatment options are available for stainless steel positioning screws? Standard finish is bright passivation for anti-rust; polishing, sandblasting surface treatment are available per custom demand.
Do you support small prototype batch orders for testing? Yes, we accept small prototype batches for customer fixture testing before mass production.
Can you provide material certification and inspection reports for orders? Absolutely, we can supply stainless steel material test reports and dimensional inspection QC documents on request.
