Cross Knurl Press Fit Metal Sleeve CNC Machined Matte Nickel Brass Bushing

Our custom cross knurl press fit metal sleeves are precision manufactured from high-grade H62 brass, designed as press-fit connecting fittings for secure, permanent assembly in various components. Featuring a cross knurl (diamond knurl) on the smaller diameter end, these sleeves deliver exceptional grip resistance when pressed into plastic, wood, or metal housings, eliminating rotation and pull-out issues under load.

Each cnc machined knurled adapter undergoes multi-step precision turning to form multi-stage stepped outer diameters, precision inner bores, and locating shoulders, ensuring tight concentricity and consistent fit. After cross knurling, deburring, and ultrasonic cleaning, these matte nickel brass bushings receive matte nickel plating to enhance wear resistance, corrosion protection, and uniform appearance.

As a dedicated manufacturer, we provide full OEM and custom service, allowing customization of dimensions, knurl patterns, plating finishes, and internal/external features to match your exact application requirements. These knurled press in sleeves are ideal for creating durable, vibration-resistant connections in precision assemblies.

These cross knurl press fit metal sleeves are widely used in precision assembly and connection applications across industries:

• Consumer electronics and appliance internal component connections
• Automotive interior and exterior plastic/metal assembly parts
• Industrial equipment and instrumentation housings
• Medical device and laboratory equipment assemblies
• Furniture, hardware, and decorative fixture connections
• Small machinery and automation equipment components

As a professional custom manufacturer, we offer comprehensive OEM and custom service for precision metal fittings:

• Custom dimensions: Length, outer/inner diameters, step sizes, and bore configurations per your drawings
• Custom knurl specifications: Cross knurl, straight knurl, or custom knurl patterns with different pitches
• Material options: H62 brass, lead-free brass, or other copper alloys
• Surface treatments: Matte nickel plating, bright nickel plating, passivation, or other custom finishes
• Custom features: Special internal/external grooves, threads, locating shoulders, or anti-rotation designs
• Production support: Prototyping, small-batch trial runs, and mass production

• Cross knurl press-fit design: Creates maximum mechanical grip with mating materials, solving common issues like spinning, loosening, or disconnection under vibration
• High-precision CNC machining: Strict ±0.02mm dimensional tolerance and ≤0.01mm concentricity eliminate assembly misalignment and fit issues
• Matte nickel plating: Enhances wear resistance and corrosion protection, preventing rust and surface degradation in humid or harsh environments
• Multi-stage stepped design: Ensures precise positioning and depth control during installation, simplifying assembly processes
• Flexible custom service: OEM support for custom sizes, knurl patterns, and finishes to match unique application and assembly requirements

• Raw material inspection: 100% incoming material verification to confirm H62 brass composition and quality
• In-process dimensional checks: Real-time testing during CNC turning to maintain tight tolerances and concentricity
• Knurl quality inspection: Verify cross knurl depth, pitch, and uniformity for consistent grip performance
• Plating quality control: Inspect matte nickel finish for uniformity, adhesion, and corrosion resistance
• Full visual inspection: Remove all burrs, scratches, and surface defects after deburring and cleaning
• Final dimensional testing: Complete inspection of critical dimensions, concentricity, and fit to meet specifications
• Packaging inspection: Moisture-proof packaging with batch tracking to prevent contamination and damage during transit

Can we customize the dimensions of these cross knurl press fit sleeves?

Yes, we offer full custom and OEM service, and can manufacture precision metal connecting fittings strictly based on your drawings or samples.

What material is used for these press-in sleeves?

The standard material is H62 brass; we also provide lead-free brass and other copper alloy options upon request.

Is the matte nickel plating optional?

Matte nickel plating is standard, but we also offer alternative finishes like passivation or bright nickel plating based on your requirements.

What is the typical tolerance for these CNC machined knurled adapters?

Critical dimensions have a tolerance of ±0.02mm, with concentricity controlled within ≤0.01mm for high-precision applications.

Do you accept small-batch or prototype orders?

Yes, we support prototype samples, small trial orders, and large-scale mass production to meet different project needs.