Fastener
Fasteners are hardware devices that mechanically join or affix two or more objects together.
They are essential components in virtually every industry, from construction and automotive to aerospace and consumer electronics. Fasteners create non-permanent joints that can be removed or dismantled without damaging the joined components.
Threaded Fasteners
· Bolts and Screws: Externally threaded fasteners typically used with nuts or in threaded holes
· Nuts: Internally threaded fasteners that mate with bolts or screws
· Studs: Rods threaded on both ends or along their entire length
· Threaded Rods: Long, straight rods with continuous threading
Non-Threaded Fasteners
· Rivets: Permanent mechanical fasteners that deform during installation
· Pins: Straight, headless fasteners used to align or secure components
· Retaining Rings: Fasteners that hold components onto shafts or in housings
· Clips and Clamps: Fasteners that hold objects together through spring tension
Specialty Fasteners
· Security Fasteners: Designed to prevent tampering or unauthorized removal
· High-Temperature/Cryogenic Fasteners: Engineered for extreme temperature applications
· Corrosion-Resistant Fasteners: Made from materials like stainless steel or with special coatings
Materials and Finishes
· Steel: Carbon steel, alloy steel, stainless steel (304, 316)
· Non-Ferrous Metals: Aluminum, brass, copper, titanium
· Superalloys: Inconel, Monel, Hastelloy
· Polymers: Nylon, PTFE, polycarbonate
· Plating: Zinc, nickel, chrome, cadmium
· Coatings: Phosphate, black oxide, Dacromet, Geomet
· Hot-Dip Galvanizing: For superior corrosion resistance
· ISO (International Organization for Standardization): Global metric standards
· ASTM (American Society for Testing and Materials): Material and testing standards
· SAE (Society of Automotive Engineers): Automotive and aerospace standards
· DIN (Deutsches Institut für Normung): German/European standards
· JIS (Japanese Industrial Standards): Japanese standards
· Metric System: Millimeter measurements (e.g., M6, M8)
· Imperial System: Inch measurements (e.g., 1/4″, 5/16″)
Metal
Aluminum
Lightweight and strong, ideal for precision parts requiring thermal conductivity and easy machining.
Aluminium 2017-T4
Aluminium 7075-T6
Aluminum 6061-T6
Versatile and machinable, balancing strength and cost for a wide range of precision uses.
Brass
Corrosion-resistant and easy to machine, great for intricate connectors and decorative precision parts.
Steel
Durable and tough, ideal for high-strength precision mechanical components.
Stainless Steel
Excellent corrosion resistance, suitable for durable and aesthetically demanding precision parts.
Alloy Steel
Offers a balance of strength and toughness, ideal for heavy-duty precision structures.
Tool Steel
High hardness and wear resistance, perfect for tooling, molds, and high-precision cutting components.
Titanium
Strong yet lightweight with exceptional corrosion resistance, used in high-end precision parts in aerospace and medical fields.
Plastic
ABS
Easy to machine with good strength and rigidity, suitable for housings and structural precision parts.
Garolite G-10
HDPE
Chemically resistant and lightweight, used in fluid-handling precision components.
PC
Strong and impact-resistant, great for load-bearing or optical precision components.
PEEK
High-performance engineering plastic with heat and chemical resistance, ideal for aerospace and medical precision applications.
POM/Delrin Acetal
PPS
PVC
Easy to fabricate and cost-effective, suitable for structural precision components.
ULTEM
High strength and thermal resistance, used in demanding aerospace and electronic precision components.
Key Considerations for Selection
| Description | |
| Application Requirements | · Load capacity (tensile strength, shear strength) · Environmental conditions (temperature, corrosion exposure) · Vibration resistance · Installation and removal requirements |
| Technical Specifications | · Size and thread pitch · Head style (hex, socket, flat, round) · Drive type (Phillips, slotted, Torx, hex) · Strength grade/class |
| Industry-Specific Requirements | · Automotive: High-strength, vibration-resistant fasteners · Aerospace: Lightweight, high-strength, certified materials · Construction: Structural bolts, anchor bolts, corrosion protection · Electronics: Miniature fasteners, non-conductive materials |
Global Supply Chain Considerations
Quality Assurance
· Certifications: ISO 9001, IATF 16949, AS9100
· Testing: Salt spray testing, mechanical testing, chemical analysis
· Traceability: Lot tracking, material certifications
Packaging and Logistics
· Bulk packaging vs. consumer packaging
· International shipping requirements
· Hazardous material considerations
Surface Finish Options
Protecting and Optimizing
Your Precision Parts
Newly formed cnc parts require specific post-processing to boost durability, improve surface aesthetics, and allow for color variation. We offer 13 unique surface treatments designed for optimal part outcomes.
As Machined
Leaves parts with their natural, economic finish directly from machining.
Brushed Finishing
Creates a uniform, textured matte appearance for enhanced aesthetics.
Sand Blasting
Produces a clean, diffuse matte surface, ideal for improved paint adhesion.
Anodizing Type II
Forms a decorative, corrosion-resistant, and dyeable oxide layer on aluminum.
Anodizing Type III
Builds a harder, thicker, and more wear-resistant protective coating than Type II.
Heat Treatment
Alters metal properties like hardness and strength through controlled heating and cooling.
Polishing
Achieves a smooth, highly reflective surface, eliminating imperfections for visual appeal.
Electro Plating
Deposits a thin metal layer to boost corrosion resistance, conductivity, or visual appeal.
Painting
Applies a colored, protective coating, customizable in various textures and finishes.
Passivation
Enhances stainless steel’s corrosion resistance by forming a stable, protective oxide film.
Electrophoresis
Ensures even and highly adherent paint coverage, especially on complex geometries.
Alodine Finish
Provides corrosion protection and electrical conductivity, often as a paint primer for aluminum.
Teflon Coating
Offers excellent non-stick, low-friction, and high-temperature resistance properties.
Gold Plating
Delivers superior conductivity and oxidation resistance, commonly for electronic applications.
SPI Surface
Defines precise mold textures, from mirror-like to coarse, for injection molded parts.
Vibrant & Durable Aluminum Anodizing
Permanent color and durable protection for aluminum that enhances beauty and is built to last.
Why We’re Your Top
Choice for Custom Parts
Experienced Professionals
Our custom parts specialists, leveraging over a decade of expertise, are adept at the accurate processing of complex forms and specialty materials. They can support your initial design refinement, avert potential design unreasonableness, and secure the timely delivery of qualified parts.
One-stop Manufacturing
MILO’s expert CNC milling and CNC turning service are the preferred choice of numerous clients. We also deliver a complete suite of manufacturing solutions, tackling both your initial designs and high-volume needs.
Over 95% On-time Delivery Rate
100+ advanced processing equipment and the unique manufacturing skills of our technical experts enable us to continuously speed up delivery while ensuring certified quality, ensuring that customer projects are completed on time.
99% Quality Pass Rate
Frequently Asked Questions About CNC Machining
What certifications or industry standards do you follow in your CNC machining processes?
MILO is ISO9001 certified and compliant with standards.
What is your usual lead time for CNC machining orders?
Lead times often depend on the difficulty of the part. We guarantee that your CNC parts will be delivered within a reasonable time frame agreed upon with you.
What tolerances can your CNC machines achieve?
For CNC machining, our machines achieve precise tolerances of +/- 0.01 mm.
What types of materials do your CNC machines support?
Common metal and plastic materials are all customizable. For special materials not listed, you are welcome to contact us online for pricing and process details.
Could you assist with complex geometry or 2D drawings?
Our technical experts will assist you in creating more complex parts. Please upload your 2D or 3D drawings with confidence, and we will provide you with DFM, material selection and improvement suggestions.