Knurled Brass Insert Nut H62 Straight Knurl Molded-In Threaded Insert for

Our custom knurled brass insert nuts are precision manufactured from premium H62 brass, specially designed for permanent embedding in plastic components via injection molding or ultrasonic installation. Featuring a straight knurl pattern, these h62 brass molded-in nuts create maximum mechanical grip with the host plastic material, eliminating common issues like spin-out and pull-out under high torque or vibration.

Every insert is produced using CNC turning to ensure accurate dimensions and precise internal threads, followed by professional straight knurl machining, deburring, ultrasonic cleaning, and passivation for enhanced anti-corrosion performance. These cnc machined brass knurl nuts undergo full thread go/no-go testing to guarantee consistent screw fit and reliable load distribution.

As a dedicated manufacturer, we provide full OEM and custom service, allowing customization of dimensions, thread specifications, knurl patterns, and finishes to match your unique application requirements. These plastic embedding brass nuts are ideal for creating durable, reusable threaded connections in thermoplastics.

These knurled brass insert nuts are widely used in industries requiring strong, reliable threaded connections in plastic parts:

• Consumer electronics housings and small appliances.
• Automotive interior plastic components and trim parts.
• Medical equipment plastic casings and assemblies.
• Household appliances and kitchenware plastic parts.
• Industrial plastic enclosures and structural components.
• Furniture, toys, and sporting goods plastic assemblies.

As a professional custom manufacturer, we offer comprehensive OEM and custom service for brass insert fasteners:

• Custom dimensions: Length, outer diameter, groove size, and thread specifications per your drawings.
• Custom thread options: Metric, UNC, UNF, or custom thread pitches.
• Custom knurl designs: Straight knurl, cross knurl, or custom profiles with different pitches.
• Material choices: H62 brass, lead-free brass, or other copper alloys.
• Surface treatments: Passivation, plating, or other anti-corrosion finishes.
• Production support: Prototyping, small-batch trial runs, and mass production.

• Straight knurl design: Creates maximum mechanical grip with plastic, solving common issues like spinning, loosening, or pull-out under torque and vibration.
• High-precision CNC machining: ±0.02mm dimensional tolerance ensures consistent fit and thread engagement, reducing assembly errors.
• Premium H62 brass material: Offers excellent corrosion resistance and thermal stability, preventing thread stripping in repeated assembly.
• Passivation treatment: Enhances anti-tarnish and anti-corrosion performance, maintaining appearance and performance in humid environments.
• Flexible custom service: OEM support for custom sizes, threads, and knurl patterns to meet unique application and design requirements.

• Raw material inspection: 100% incoming material verification to confirm H62 brass composition and quality.
• In-process checks: Real-time dimensional testing during CNC turning and knurling to maintain tight tolerances.
• Thread testing: 100% inspection with thread plug gauges to ensure compliance with standard specifications.
• Visual and dimensional inspection: Full check for burrs, surface defects, and dimensional accuracy after deburring and cleaning.
• Surface treatment verification: Passivation quality testing to ensure anti-tarnish and anti-corrosion performance.
• Final packaging inspection: Moisture-proof packaging with batch tracking to prevent contamination during transit.