US Standard Plug Pin & Electrical Prong Manufacturing | OEM/ODM Specifications
Precision-engineered US standard plug pins designed for NEMA power cords, adapters, wiring devices, and industrial electrical equipment. Manufactured via high-speed progressive stamping and automatic lathe machining, our solid and hollow plug pins ensure stable electrical conductivity, accurate mating dimensions, and strict compliance with North American safety requirements.
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Types and Specifications
|
Model / Type |
Standard Reference |
Pin Dimensions (mm / in) |
Material Options |
Typical Application |
|
NEMA 1-15 Ungrounded Flat Pin |
NEMA WD 1, UL 817 |
Thickness: 1.5 - 1.8mm |
Width: 6.35mm |
H62 / H65 Brass, Copper Alloy |
|
NEMA 5-15 Grounded Plug Pin (Hot/Neutral) |
NEMA WD 6, UL 498 |
Width: 6.35mm |
Length: 15.8mm (exposed) |
H62 Brass, Phosphor Bronze (springs) |
|
NEMA 5-15 Ground Pin (Round/U-Shape) |
NEMA WD 6, UL 498 |
Diameter: 4.75mm (0.187") |
Length: 19.1mm |
Solid Brass, Copper Cored |
|
Custom Hollow / Tubular Pin |
NEMA WD 6, Customer Drawing |
Outer Dia: Customized |
Wall: 0.5 - 1.2mm |
C26800, C27000 Brass |
Materials and Compliance Standards
Base Metals
H62 / C26800 brass for solid strength, H65 / C27000 brass for bending and crimping, and phosphor bronze for spring parts.
Electrical Standards
Built according to NEMA WD 1, NEMA WD 6, and UL 817 rules for mechanical fit and safe temperature limits.
Environmental Compliance
Fully compliant with RoHS and REACH rules, keeping restricted heavy metals out of electrical contacts.
Product Structure
Mating Head
Chamfered or rounded tips to prevent socket damage and reduce insertion force during repeated plug use.
Crimp Zone
Engineered with barrel ears, open wire grips, or threaded holes to match specific wire gauge (AWG) crimping methods.
Anchor Feature
Includes barbs, knurled sections, or shoulder stops molded securely into plastic plug bodies to stop pull-out or twisting.
Surface Finishes
|
Finish Type |
Thickness / Spec |
Primary Function |
|
Electroplated Nickel |
3.0 - 5.0 um over copper strike |
Stops surface rust and adds wear resistance during plug insertion and pullout. |
|
Electroplated Tin (Bright/Matte) |
3.0 - 8.0 um |
Makes wire soldering easier and adds good corrosion protection. |
|
Bare / Anti-Tarnish Passivated |
Chemical protective film |
Keeps raw brass conductive for internal secondary overmolding use. |
Application Scenarios
Consumer electronics power adapters and phone chargers.
Commercial appliance detachable and molded power supply cords.
Industrial extension cords, power distribution units, and surge protectors.
Medical equipment power cords needing reliable grounding connections.
OEM Customization Capabilities
Drawing Execution
Production built strictly from customer CAD drawings, step files, or physical master samples.
Dimensional Changes
Custom pin lengths, slot depths, barrel crimp shapes, and non-standard pin spacing.
Material Papers
Mill test certificates provided for copper alloy chemical makeup and hardness ranges (HV 120-150).
Manufacturing Capability
High-Speed Stamping
25T to 125T high-precision presses with multi-station progressive dies for high-volume flat pin runs.
Automatic Lathe Machining
CNC sliding-head lathes for round pins, hollow tubular pins, and threaded terminal inserts down to $\pm 0.01\text{ mm}$ tolerances.
In-Line Production
Automated deburring, ultrasonic cleaning, and barrel plating lines to keep surfaces clean and coating thickness steady.
Quality Control and Inspection
Dimensional Checks
2.5D optical image projectors and digital micrometers checking pitch, width, thickness, and pin straightness.
Plating Checks
X-ray fluorescence coating thickness testers measuring micro-inch levels of nickel and tin.
Mechanical Testing
Push-pull force testers checking terminal retention strength inside molded housings.
Traceability
Batch lot controls linking raw material mill sheets to final shipping inspection reports.
Our Company
What to Specify When Ordering
Standard Reference
NEMA type code (such as NEMA 1-15, NEMA 5-15) or custom drawing number.
Dimensions
Overall length, pin thickness, diameter, width, and crimping section size.
Material Grade
Specified brass alloy (H62, H65) or conductivity needs.
Surface Treatment
Nickel plating, tin plating, or unplated bare brass.
Packaging
Bulk bagged, carrier tape-and-reel for automated machines, or anti-rust paper layers.
Order Volume
Yearly forecast or per-lot quantity needs.
FAQ
We're well-known as one of the leading us standard plug pin manufacturers in China, specialized in providing high quality customized products. Please feel free to buy discount us standard plug pin made in China here from our factory. For quotation and free sample, contact us now.
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