Shenzhen Kemifon Precision Manufacturing Co., Ltd.
| Delivery Time | 7-20 Days |
| Payment Terms | T/T |
| Supply Ability | 500000 Pcs / Month |
| Packaging Details | Standard Export Packaging |
| Model Number | CS-BSS-8 |
| Certification | ISO 9001 |
| Brand Name | KEMIFON |
| Place of Origin | Shenzhen, China |
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Product Specification
| Delivery Time | 7-20 Days | Payment Terms | T/T |
| Supply Ability | 500000 Pcs / Month | Packaging Details | Standard Export Packaging |
| Model Number | CS-BSS-8 | Certification | ISO 9001 |
| Brand Name | KEMIFON | Place of Origin | Shenzhen, China |
| High Light | Custom H59 brass slotted expansion screw ，Self-locking brass threaded insert fastener ，One-slot design expansion screw fastener | ||
Product Description
Our custom brass slotted expansion screw, also known as brass expansion insert screw and slotted brass threaded insert, is precision manufactured from premium H59 brass by CNC turning process. The unique one‑piece slotted split design enables self‑locking expansion force after installation, delivering reliable anti‑loosening fastening performance. As a professional manufacturer, we provide flexible OEM & custom service to match your exact dimension, tolerance and surface requirements. Each brass self‑locking expansion fastener goes through strict dimensional inspection to guarantee consistent quality for long‑term industrial use. No secondary loose risk under normal working load, ideal for embedded fixed connection in plastic, wood and light alloy housing parts.
Technical Specifications
| Product Name | Brass Slotted Expansion Screw |
|---|---|
| Material | H59 Brass |
| Head Outer Diameter | 5 mm |
| Thread Outer Diameter | 3.9 mm |
| Overall Length | 6.6 mm |
| Machining Process | CNC Turning |
| Structure | Single straight slotted expansion split body |
| Tolerance | ±0.03 mm for critical dimensions |
| Surface Finish | Natural brass finish, optional deburring, polishing |
| Locking Type | Mechanical self‑expansion locking |
| Custom Options | Custom size, slot shape, thread specification per request |
Applications
This cnc turned brass expansion fastener is widely applied in consumer electronics housings, household appliance components, plastic casing assembly, furniture hardware, communication equipment parts, instrument panel accessories and light‑duty industrial embedding connection. It works perfectly for pre‑embedded fastening on plastic, composite material, hardwood and die‑cast alloy substrates.
Custom & OEM Service
As a reliable fastener manufacturer, we deliver full custom service and OEM production for brass slotted expansion screw. You can provide technical drawings or physical samples for non‑standard dimension adjustment, thread modification, slot structure optimization and special surface treatment. Our engineering team supports prototype trial production before mass order, flexible MOQ for small‑batch custom parts and large‑volume bulk manufacturing to meet different project demands.
Key Advantages
Quality Control
Strict quality control runs through the whole production flow of our brass self‑locking expansion screw. Raw H59 brass bar inspection first; in‑process dimension sampling by caliper and micrometer; finished‑product visual check for burr and surface defect; random locking‑force testing for expansion performance. We keep production inspection records to guarantee stable batch quality for your custom fastener orders.
Shipping & Delivery
For standard brass slotted expansion screw samples, we arrange prompt shipment within 3‑7 working days. Custom OEM mass production lead time depends on order quantity and processing complexity. Multiple shipping options are available including express courier, air freight and sea freight. We provide proper anti‑scratch packaging to protect precision brass fasteners during long‑distance transit.
Frequently Asked Questions
Company Details
Business Type:
Manufacturer,Trading Company,Exporter,Seller
Year Established:
2009
Total Annual:
50000000-60000000
Employee Number:
200~300
Ecer Certification：
Verified Supplier
KEMIFON Precision Group is a professional Chinese OEM custom manufacturer with its own production factory, dedicated to custom manufacturing and supplying high-quality custom springs, custom fasteners, and high-precision CNC machining parts for global export. We focus on provid... KEMIFON Precision Group is a professional Chinese OEM custom manufacturer with its own production factory, dedicated to custom manufacturing and supplying high-quality custom springs, custom fasteners, and high-precision CNC machining parts for global export. We focus on provid...
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