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Our flat milled internal thread aluminum connecting sleeve is precision fabricated via integrated CNC turning and CNC milling processes from premium 6061 aluminum alloy. The component features precision bored internal female thread and dual flat milled wrench clamping flats for easy assembly with spanner tools. All parts go through burr removal treatment, followed by durable blue hard anodized surface finishing to enhance corrosion resistance and surface hardness. As an experienced OEM custom manufacturer, we deliver personalized custom service to modify dimension, thread specification, surface finish according to customers’ technical drawings or physical samples to match diverse mechanical connection needs across multiple industries.
Technical Specification
Product Name
Threaded Coupling Sleeve
Raw Material
6061 T6 Aluminum Alloy
Standard Dimension
Length 22mm, Outer Diameter 8.5mm (custom size available via OEM service)
Machining Process
CNC Turning (outer circle, overall length, inner thread boring) + CNC Milling (double side flat milling for wrench flats)
Surface Finish
Hard Blue Anodizing
Thread Standard
Custom female internal thread, inspected by go/no-go thread gauges
Dimensional Tolerance
±0.02mm precision tolerance for critical dimensions
Inspection
Full dimensional inspection & deburring treatment
Applications
This aluminum female thread coupling sleeve works as connecting fastener across multiple civilian industrial fields: automation equipment accessories, electronic device internal assembly, household appliance structural connection, pneumatic component fittings, medical equipment small connectors, new energy equipment spare parts, instrumentation hardware fittings and general machinery assembly joints.
Custom Services
As a professional custom manufacturer, comprehensive OEM & ODM custom service is available:
Custom dimension, length, outer diameter and thread specification based on customer drawings or physical samples
Custom surface treatments: various anodize colors, sandblasting, polishing upon requests
Custom flat milling size, single/double flat structure per assembly requirement
Flexible MOQ to support small batch trial orders and mass production orders
Product Advantages
Precise thread control eliminates loose connection & thread mismatching trouble caused by low-precision machining
Uniform double milled flats avoid wrench slipping during installation to save your assembly labor cost
Hard blue anodized coating solves aluminum part rust & quick abrasion issue in regular working environments
Flexible OEM custom service avoids standard-size mismatch problem for non-standard mechanical projects
Quality Control
Raw material incoming inspection to verify 6061 aluminum material certification before production
In-process first article inspection after CNC turning & milling setup
Thread test with professional go/no-go gauges to guarantee thread interchangeability
Full dimensional inspection for all finished products with micrometer & caliper
Final surface appearance check & deburr confirmation before packaging and shipment
FAQ
Can you make custom size aluminum coupling nut with non-standard thread?
Yes, we provide full OEM custom service, we produce items exactly per your technical drawings or samples.
What is your standard dimensional tolerance for CNC machined aluminum sleeves?
Our critical dimension tolerance is controlled at ±0.02mm, tighter tolerance is negotiable for special projects.
Is blue hard anodizing the only available surface finish option?
No, multiple anodize colors and alternative surface treatments are available via custom service.
What is your minimum order quantity for custom CNC machined coupler nuts?
We accept small trial orders, flexible MOQ supports prototype and bulk production.
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Trading Company,Exporter,Seller
Year Established:
2009
Total Annual:
50000000-60000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
KEMIFON Precision Group is a professional Chinese OEM custom manufacturer with its own production factory, dedicated to custom manufacturing and supplying high-quality custom springs, custom fasteners, and high-precision CNC machining parts for global export. We focus on provid...
KEMIFON Precision Group is a professional Chinese OEM custom manufacturer with its own production factory, dedicated to custom manufacturing and supplying high-quality custom springs, custom fasteners, and high-precision CNC machining parts for global export. We focus on provid...
