Double-End Knurled Injection-Molded Embedded Nut, Stepped Plastic Heat-Staked Insert Nut

Product Specifications

Part Number	YY00237
Material	Iron
Surface Treatment	Electroplating available
Outer Diameter	11 mm
Total Length	10 mm
Thread	M6
Process	Precision machining
Knurl Type	Knurling on both ends, with a stepped profile
Price	Please contact us for current pricing.
Customization	Non-standard outer diameter, length, thread size, step dimensions, and knurl pattern are available upon request.

Core Advantages

• Double-end knurling: Two knurled bands increase the contact area with the plastic and resist rotational movement under torque.
• Stepped profile: The step geometry allows the insert to seat against a matching stepped molded hole and supports axial positioning during installation.
• Anti-pull-out geometry: The knurled sections create mechanical interlock with the plastic after molding or heat staking.
• Iron construction: Iron provides mechanical strength for applications subject to higher tightening torque and load.
• Electroplating option: The surface can be electroplated to provide additional corrosion protection where required by the operating environment.
• Precision machining: The machining process holds consistent dimensional tolerance on outer diameter, length, and thread.
• M6 internal thread: Suits fasteners used in medium and larger housings and structural plastic parts.

Product Features

• Knurling on both ends, with a stepped profile between the knurled bands.
• Stepped body for seating in molded holes with a matching step.
• Machined iron body with consistent dimensional tolerance.
• Internal M6 metric thread produced to standard pitch.
• Outer diameter of 11 mm and total length of 10 mm.
• Electroplating available as a surface treatment option.
• Suitable for insert molding, heat staking, press-fit, and ultrasonic insertion.
• Can be produced to customer drawings for non-standard dimensions and step geometry.

Applications

• Home appliance plastic components
• Automotive interior and structural plastic components
• Industrial control panels and instrument casings
• Power tool and equipment housings
• Telecommunications equipment
• Furniture and hardware plastic assemblies
• Prototype and low-volume molded assemblies
• Thermoplastic parts requiring repeated fastening and disassembly

FAQ and Solutions

Q1: What is the function of the stepped profile?
A: The step geometry allows the insert to seat against a matching stepped molded hole. This supports axial positioning during installation and provides a defined contact face within the boss.

Q2: How is this insert installed?
A: It can be installed by insert molding, heat staking, press-fit, or ultrasonic insertion, depending on the plastic type and wall thickness. Heat staking is commonly used for thermoplastics because the melted plastic flows into the knurl and resets around it.

Q3: Is electroplating required for this insert?
A: Electroplating is an available option. It can be specified where additional corrosion protection is required by the operating environment. For dry indoor applications, the untreated or plated option can be selected based on the project requirements.

Q4: What information is needed for a custom quote?
A: Please provide outer diameter, total length, thread size, step dimensions, knurl type, material, surface treatment, quantity, and any drawing or tolerance requirements.

Precautions

• Confirm the molded hole diameter, step dimensions, and boss wall thickness before installation.
• Use installation parameters recommended for the specific plastic material.
• Avoid excessive heat during heat staking, which can deform the surrounding plastic.
• Store in a dry environment to limit surface oxidation when the insert is supplied without plating.
• Verify thread compatibility with the mating screw before assembly.
• For high-torque applications, test the insert in the actual plastic to confirm performance.

Customization and Ordering

Non-standard embedded nuts can be produced according to customer drawings or samples. Customization options include outer diameter, length, thread size, step dimensions, knurl type, material, surface treatment, and chamfer. Please contact us with your specifications and application details for a quotation.

Details