NPT1/4-NPT3/8 Tapered Threads Convenient Insulation Fine Polished Machining Parts
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Product Highlights
- Full Customization Options: Accepts customization from samples, designs, and full custom requirements.
- Wide Material Selection: Available in Copper, 45# Steel, Aluminum, and 304 Stainless Steel.
- High Precision Machining: Machining tolerance of +/-0.02mm with fine polished surface finish.
- Comprehensive Certifications: Certified with CE, RoHS, GS, and ISO9001 standards.
- Diverse Application Scope: Suitable for metal spinning, forging, drawing, casting, and wire drawing machinery.
- Professional Design Support: Expert designers available to assist with product design if drawings are missing.
- Fast Sample Availability: Free ceramic samples available; other metal samples incur cost.
- 100% Quality Inspection: All finished products undergo visual and functional inspection.
Product Attributes
- Customization
- Available
- Warranty
- 1/Year
- Condition
- New
- Model NO.
- sg-bz
- Certification
- CE, RoHS, GS, ISO9001
- Standard
- DIN, ASTM, GOST, GB, JIS, ANSI, BS
- Customized
- Customized
- Material
- Customized
- Application
- Metal Spinning Machinery, Metal Processing Machinery Parts, Metal forging Machinery, Metal Drawing Machinery, Metal Casting Machinery, Wire Drawing Machine
- Product Nme
- CNC Metal Part
- Materials
- Copper, 45#Steel, Aluminum, 304 Stainless Steel
- Precision
- Fine Polished
- Automatic Grade
- After-Sales Service
- Surface Roughness
- Ra 0.1
- Custom-Size
- Accept (as The Customer Drawing)
- Machining Tolerance
- +/-0.02mm
- Transport Package
- Wooden Crate
- Specification
- Customized
- Trademark
- senguang
- Origin
- China
- Production Capacity
- 999999/Year
- Package Size
- 1000.00cm * 1000.00cm * 1000.00cm
- Package Gross Weight
- 200.000kg
- Lead Time
-
20 days (1 - 100 Pieces)
30 days (101 - 1000 Pieces)
To be negotiated ( > 1000 Pieces)
Shipping
- Shipping Cost:
- Contact the supplier about freight and estimated delivery time.
Online Trading Protection
- Payment Guarantee
-
Platform-protected payments with refund support for eligible order issues.
- Platform Logistics
- Clearer shipment tracking with platform-supported logistics.
- Inspection Service
- Optional pre-shipment inspection for quality and quantity checks.
- After-Sales & Dispute Handling
- Platform-assisted dispute resolution, including refunds or returns when applicable.
Only orders placed and paid through Made-in-China.com Secured Trading are eligible for payment protection and the corresponding platform services.
Product Images of NPT1/4-NPT3/8 Tapered Threads Convenient Insulation Fine Polished Machining Parts
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Product Description



Comparison of Physical Properties | ||||
Properties | Copper (Cu) | 45# Steel | Aluminum (Al) | 304 Stainless Steel |
Density (g/cm³) | 8.96 | 7.85 | 2.7 | 7.93 |
Melting Point (°C) | 1083 | ~1450-1500 | 660 | 1398-1454 |
Thermal Conductivity (W/m·K) | 393.5 | ~45-60 | 221.9 | 16.3 (at 100℃) |
Coefficient of Linear Expansion(10-6/℃) | 16.7 | ~11.7 | 23.6 | 17.2 (0-100℃) |
Comparison of Mechanical Properties | ||||
Properties | Copper (Pure Copper) | 45# Steel | Aluminum (6061) | 304 Stainless Steel (Annealed) |
Tensile Strength (MPa) | 200-300 | ~600-800 | 310 | ≥515 |
Yield Strength (MPa) | ~100-200 | ~350-500 | 276 | ≥205 |
Elongation (%) | 30-40 | ~15-20 | 10-20 | ≥40 |
Hardness (HB) | ~50-80 | ~150-200 | ~50-80 | ≤201 |








About the Supplier
This supplier has been audited by TÜV Rheinland. Verify the report on the official TÜV Rheinland website with ID "MIC-ASI2421442". Items marked "" are certified.
Company Profile
In 2012, Senguang set sail, focusing on the processing of guide wheels and producing and selling them in-house. Our main business includes fiber optic cable guide wheels, high wear-resistant porcelain coated guide wheels, anti-corrosion hard oxygen guide wheels, high hardness tungsten carbide guide wheels, steel rings, tower wheels, preheated copper wheels, lightweight electric wood guide wheels that do not damage wires, standard parts supply storage wheels, nickel strips, bow strips, all ceramic wheels, combination guide wheels, and water blowers. After five years of polishing and learning, we have been continuously innovating and developing products based on our own expertise in guide wheels since 2016. At the same time, we have added multiple professional processing equipment such as CNC, milling machines, grinders, and spraying centers, as well as experienced professionals with ten years of industry experience. We have also established long-term partnerships with major well-known wire equipment factories. Our company has always been committed to the business policy of maintaining a high-quality brand. We will sincerely cooperate with you with high-quality products, reasonable prices, and comprehensive after-sales service.
About Our Factory & Business Background
-
Business Type
- Manufacturer/Factory & Trading Company
- Address
- ChuangXing Road No26, BaiSha, humen Town, Dongguan, Guangdong, China
-
Plant Area
- 650 square meters
-
Number of Employees
- 12
-
Registered Capital
- 10,000,000 RMB
-
Terms of Payment
- LC, T/T, D/P, PayPal, Western Union, Small-amount payment
-
International Commercial Terms(Incoterms)
- FOB, CIF, CFR, EXW
-
Average Lead Time
-
Peak Season Lead Time: within 15 workdays
Off Season Lead Time: within 15 workdays -
Nearest Port
- SHenzhen Port
-
Minimum Order Quantity
- 10
-
Supply Chain Partners
- 50
Our Production Capability & Technical Expertise
-
Main Products
- Pulley
-
Production Lines
- 2
-
Production Machines
- CNC Lathe
-
QA/QC inspectors
- 1 people
-
Inspection Type for Finished Products
- 100% inspection(Visual inspection & Function inspection)
-
Inspection Method for Finished Products
- Have instructions and uniformly followed
-
Customization Options
- Customization from Samples, Customization from Designs, Full Customization, Minor Customization, Flexible customization
-
ODM Service Available
- Yes
-
R&D Engineers
- 1 people
-
Traceability of Raw Materials
- Yes
Our Industry Experience & Global Business Record
-
Year of Establishment
- 2011-12-20
-
Export Year
- 12 Years
-
Main Markets
- South America
-
Repeat Buyers Choice
- 50%~80%
-
Number of Foreign Trading Staff
- 2
-
Overseas Agent/Branch
- No
-
New Products Launched in Last year
- No
Our Certifications, Standards & Industry Recognition
-
Cooperated with Fortune 500
- No
FAQ
- Can we get some samples? Any charge?
- Yes, you can get available samples. Free for ceramic samples, but freight cost applies. Other metal products need sample cost.
- How can we get the quote?
- First send the detailed drawing to customer service Email. If no drawing, please supply the specification of products, such as material, size, shape, quantity, surface finish, etc.
- If I have no drawing, can you help with the design?
- Yes, we have professional designers to help your design.
- What is the trade terms and payment terms?
- 30% or 50% of the total value to be paid before producing, the rest of deposit to be paid before shipment. Accept T/T, West Union, Money Gram, L/C, PayPal, Cash, other can be negotiated.
- What about the lead time?
- It depends on products. Normally 10-15 days after confirmation of drawing and payment.
- How can I know if our product has been shipped?
- Detailed photos of every process will be sent to you during production. We will supply tracking number once shipped.
- What shipping method can I choose? How about the shipping time of each option?
- DHL, UPS, FEDEX, TNT, CHINA POST, etc. 3 to 5 working days of express delivery.
- How do you compute the shipping charges?
- We will supply shipping charges according to estimated G.W. when quoting.
- Do you have MOQ?
- Yes, the Minimum order quantity depends on the specifications of products you need. Please accompany your inquiry with a drawing of the item then response you within 24 hours.
Send your message to this supplier
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