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Carbon Steel Hex Injection Molded Insert Nut with Knurled Anti-Rotation Structure and Precision Thread for Plastic Housing
| Place of Origin | GuangDong Dongguan |
| Brand Name | SITUO |
| Certification | ISO9001 & TS16949 |
| Model Number | ST2026-500039 |
Carbon Steel Hex Injection Molded Insert Nut
,Knurled Anti-Rotation Hex Injection Molded Insert Nut
,Precision Thread Hex Injection Molded Insert Nut
Situo Hardware supplies custom carbon steel hex injection molded insert nuts, also known as knurled embedded through-hole nuts. Manufactured with precision machining and cold forming technology, these insert nuts are pre-buried during plastic injection molding.
The outer knurl design delivers strong anti-rotation and anti-pullout performance. When molded into plastic substrates, the nut stays locked firmly without spinning or detaching under torque and vibration. Widely used for plastic housings in consumer electronics, smart home devices, automotive plastic components, instrument enclosures and communication equipment. We support non-standard custom machining based on drawings or samples.
- Knurled Anti‑Rotation Structure: Outer knurling increases bonding strength with plastic material, effectively prevents nut spinning and pull-out under repeated assembly torque.
- Through Hole Hex Body: Hex profile assists positioning during injection molding; full through thread allows bolt penetration for through assembly applications.
- Carbon Steel Material Option: High tensile strength carbon steel, cost-effective for general mechanical fastening scenarios. Surface treatment like zinc plating is available to boost rust resistance.
- Precision Thread & Stable Tolerance: Uniform internal thread, smooth thread surface, tight dimensional tolerance, good consistency suitable for mass injection production.
- Flexible Custom Machining: Custom thread size, outer diameter, length, knurl pattern and plating. Small batch trial orders are acceptable with fast sample delivery.
- Smart home plastic housings
- Consumer electronic enclosures
- Automotive interior plastic parts
- Instrument & meter plastic shells
- Communication equipment casings
- Plastic brackets and injection molded assemblies
Standard Thread: M2, M2.5, M3, M4, M5, M6; other threads available upon custom request
Material: Carbon Steel
Surface Treatment: Plain, Zinc Plating, Blue-white Zinc Plating
Sample Lead Time: 3-5 working days
Packing: Anti-rust packaging + export cartons
We provide one-stop custom fastener solutions for plastic injection embedded hardware.
We have introduced advanced equipment and technology from Japan and Germany (CNC 5-axis and 6-axis machines) to better serve our customers' needs.
Our maximum processing outer diameter is 60, and the minimum control tolerance is 0.001. We have Japanese CNC Tsugami, CNC Citizen, multi-station cold extrusion forming machines, 500T press machines, casting equipment, and various process equipment, which can effectively provide customers with the best technical solutions.
Our company has a total of 300 employees, including 20 technicians, 10 engineers, and 15 quality control personnel. We have over 300 pieces of equipment.
Our company implements 8S management and has passed ISO9001 and TS16949 automotive certifications.
Our customers include Bo-sch, Foxconn, Motors, Husqvarna, Shimano, NVIDIA, DJI Drones, Siegenia, and Cater-pillar.
| Main Products | Stainless steel screws, carbon steel screws, pins, rivets, nuts, eccentric nails, embedded parts, and other fasteners. |
|---|---|
| Business Type | Factory / Manufacturer |
| Services | CNC Machining, Turning and Milling, CNC Turning, Cold heading, Stamping, Assembly Service |
| Materials | Aluminum: AL 6061-T6, 6063, 7075-T etc Stainless Steel: 303,304,304L,316L,316F,630,410,420,430, etc Steel: 4140, Q235, Q345B,20#,45# 1215,12L14,1144,1006,1008,1010,1015,1018,10B21,1035,1065 etc. Alloy Steel: 5140,4135,4140,3435,5120,415,435,440 etc Titanium: TA1,TA2/GR2, TA4/GR5, TC4, TC18 etc Brass: C36000 (HPb62), C37700 (HPb59), C26800 (H68), C22000(H90),C27000,C51900,C11000,C3604,H62,H65 etc Other: Copper, bronze, Magnesium alloy, Delrin, POM, Acrylic, PC, etc. |
| Finishes | Sandblasting, Anodize color, Blackening, Zinc/Nickel Plating, Polish, Power coating, Passivation PVD, Titanium Plating, Electrogalvanizing, electroplating chromium, electrophoresis, QPQ(Quench-Polish-Quench), Electro Polishing, Chrome Plating, Knurl, Laser etch Logo, etc. |
| Drawing Format | STEP, STP, GIS, CAD, PDF, DWG, DXF etc or samples. |
| Tolerance | +/-0.01mm ~ +/-0.05mm |
| Surface Roughness | Ra 0.1~3.2 |
| Inspection | Complete inspection lab with Micrometer, Optical Comparator, Caliper Vernier, CMM, Depth Caliper Vernier, Universal Protractor, Clock Gauge, Internal Centigrade Gauge |
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