Brass Flanged Embedded Nut, Double-Section Straight-Knurled Injection Insert

Product Specifications

Material	Copper
Surface Treatment	Cleaning
Outer Diameter	13 mm
Total Length	11 mm
Thread	M6
Process	CNC turning
Knurl Type	Two sections of straight knurling on the body, with a flanged collar
Price	Please contact us for current pricing.
Customization	Non-standard outer diameter, length, thread size, flange dimensions, and knurl pattern are available upon request.

Core Advantages

• Flanged collar: The flange provides a bearing surface against the plastic and limits insertion depth during press-fit or heat staking.
• Double-section straight knurling: Two knurled bands increase the contact area with the plastic and resist rotational movement under torque.
• Anti-rotation geometry: The knurled sections create mechanical interlock with the plastic after press-fit or molding.
• Copper construction: Copper offers thermal conductivity and corrosion resistance in typical indoor environments, and is compatible with common molding and press-fit processes.
• Cleaned surface: The cleaning treatment removes machining residue and prepares the surface for consistent insertion behavior.
• M6 internal thread: Suits fasteners used in medium and larger housings and structural plastic parts.
• Customizable flange: Flange diameter and thickness can be adjusted to match specific boss designs.

Product Features

• Flanged collar at the top, with two sections of straight knurling along the body.
• Flange profile for seating against the plastic surface and limiting insertion depth.
• Machined copper body with consistent dimensional tolerance.
• Internal M6 metric thread produced to standard pitch.
• Outer diameter of 13 mm and total length of 11 mm.
• Cleaning surface treatment for removal of cutting fluid and fine particles.
• Suitable for press-fit, insert molding, heat staking, and ultrasonic insertion.
• Can be produced to customer drawings for non-standard dimensions and flange 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 flanged collar?
A: The flange provides a bearing surface against the plastic and limits how far the insert can be pressed or heat-staked into the hole. It also distributes load at the contact face during tightening.

Q2: How is this insert installed?
A: It can be installed by press-fit, insert molding, heat staking, 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: What is the purpose of the two knurled sections?
A: Two separate knurled bands provide multiple engagement zones within the plastic. This can improve torque and pull-out resistance compared with a single knurled section.

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

Precautions

• Confirm the molded hole diameter, flange 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.
• 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 brass embedded nuts can be produced according to customer drawings or samples. Customization options include outer diameter, length, thread size, flange dimensions, knurl type, material, surface treatment, and chamfer. Please contact us with your specifications and application details for a quotation.

Details