Wholesale Window Lock Handle Supplier 2026: Quality, Speed & OEM from China’s Trusted Foundry
Meta Description: Source wholesale window lock handle from a 20+ year Chinese foundry. ISO 9001, CE, OEM/ODM, FOB/CIF, MOQ from 500 pcs, 15–25 day delivery. Reliable quality for USA import managers & brand owners.
If you are sourcing a wholesale window lock handle for the US market, you need a supplier who combines foundry-grade casting precision with export reliability. Shijiazhuang TJJ TRADE CO., LTD. operates a 20+ year-old casting factory in Hebei, China — one of the earliest in the country. We supply cast iron and zinc alloy window lock handles to American import managers, brand owners, and wholesalers. Our MOQ starts at 500 pieces, lead time is 15–25 days, and we support full OEM/ODM. Every batch is ISO 9001 and CE compliant. This page gives you the technical specs, compliance data, and real customer feedback you need to make a confident sourcing decision.
Why Import Managers & Wholesalers Struggle with Window Lock Handle Sourcing
🔧 Inconsistent Casting Quality
Porosity, misaligned threads, or brittle handles that fail after 500 cycles. Returns eat into margins.
📏 Non-Compliant Dimensions
Handles that don’t fit US standard window profiles (3/8″ square spindle, 7/16″ cam, etc.) cause field rejections.
⏳ Long Lead Times
40–60 day delays from smaller foundries. Missed construction deadlines and lost contracts.
📄 Low MOQ Flexibility
Many foundries demand 5,000+ pcs per SKU. That’s too high for testing new handle designs.
Our Solution: Precision-Cast Wholesale Window Lock Handles for the US Market
TJJ’s window lock handles are produced in our 20-year-old foundry using green sand casting and investment casting methods. We offer cast iron and zinc alloy handles with multiple finish options: powder-coated black, electroplated zinc, brushed nickel, and antique brass. All handles are engineered for window types commonly used across North America — casement, awning, sliding, and double-hung.
| Handle Type | Material | Spindle / Cam | Finish Options | Common Use |
|---|---|---|---|---|
| Casement Crank Handle | Zinc Alloy / Cast Iron | 3/8″ square spindle | Powder coat / Zinc plate | Residential casement windows |
| Cam Lock Handle | Zinc Alloy | 7/16″ cam with 90° stop | Brushed nickel / Antique brass | Sliding & double-hung windows |
| Tilt & Turn Handle | Cast Iron | Multi-point gearbox | Powder coat black / Silver | European-style windows (US import) |
| Surface-Mount Lock | Cast Iron | Key-locking or thumb-turn | Electroplated / Painted | Basement & utility windows |
* Spindle and cam dimensions can be customized per OEM specifications. Please refer to the actual order confirmation.
Technical Specifications & Compliance (USA Market Standards)
Every wholesale window lock handle shipped to the US is tested for dimensional accuracy, tensile strength, and corrosion resistance. We adhere to ANSI/BHMA A156.16 performance requirements for auxiliary hardware where applicable. Our factory is ISO 9001:2015 certified, and our zinc alloy handles carry CE marking. Below are the key technical specs:
| Parameter | Specification |
|---|---|
| Material | Grey cast iron (HT200) or Zamak 3 zinc alloy |
| Tensile Strength (Zinc Alloy) | ≥ 280 MPa |
| Salt Spray Test | ≥ 72 hours — no red rust (zinc plated) |
| Cycle Test | 25,000 open/close cycles (cam lock) |
| Certifications | ISO 9001:2015, CE, RoHS compliant |
| Packaging | Polybag + inner box + export carton (or custom blister card for retail) |
* Testing data based on internal QA reports. Actual performance may vary with installation conditions. Refer to the final product specification sheet.
OEM/ODM: Custom Window Lock Handle Design for Your Brand
We understand that brand owners and import managers often need a proprietary design to differentiate their product line. TJJ offers complete OEM/ODM support for wholesale window lock handle projects, including:
- Custom tooling & molds — New patterns machined in 10–15 working days.
- Finish matching — We match RAL, Pantone, or your physical color chip.
- Brand packaging — Blister card, hang tag, or retail box with your logo.
- Private label — Laser engraving, embossing, or pad printing on each handle.
- Sample approval — Pre-production samples shipped within 15 days of mold completion.
Our in-house engineering team works directly with your specs — send us a drawing, a 3D file, or even a physical sample. We will reverse-engineer and suggest cost-saving improvements based on casting best practices.
Manufacturing Power & Quality Assurance
Shijiazhuang TJJ TRADE CO., LTD. operates a foundry with 80+ experienced workers covering an area of 12,000 m². Founded more than 20 years ago, it was among the first casting factories established in China. Our monthly output for window hardware exceeds 200,000 pcs.
We run a 3-stage QC process: incoming raw material inspection → in-process dimensional check (every 30 minutes per line) → final functional testing on a random sample per lot (ANSI/ASQ Z1.4 Level II). Rejection rate for exported handles is below 1.2%.
Our vertical integration — from pattern making to casting to finishing — ensures faster turnaround and consistent quality compared to foundries that outsource finishing.
TJJ foundry floor — 12,000 m² facility
QC dimensional check station
Commercial Terms: MOQ, Lead Time, Pricing & Logistics
Our terms are designed to give import managers and wholesalers a low-risk entry point while scaling with confidence.
| Parameter | Details |
|---|---|
| MOQ | 500 pcs per SKU for stock designs. 1000 pcs for OEM (tooling amortized). |
| Lead Time | 15–25 working days after sample approval and deposit. |
| Pricing Term | FOB Tianjin / Qingdao or CIF to US West Coast (Long Beach / Los Angeles). |
| Payment | 30% deposit, 70% balance against BL copy. T/T, L/C at sight. |
| Sample Cost | $30–$80 per design. Refundable on first order > 2000 pcs. |
| After-Sales | 1% free replacement for transit damage. Technical support via WhatsApp/email within 4 hours. |
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* All commercial terms are negotiable based on volume and order frequency. Please refer to the final sales contract.
Where Our Window Lock Handles Are Used (USA Market)
🏠 Residential Construction
Casement and awning window handles for new home builds in Texas, Florida, and California.
🏢 Commercial Renovation
High-cycle handles for office buildings, hotels, and schools requiring ANSI Grade 2 performance.
🪟 Window Distributor Stock
Replacements for major US window brands — compatible spindle patterns available.
📦 Retail & E-commerce
Blister-packaged handles for Amazon, Home Depot, and local hardware chains.
What Our Buyers Say
Michael T. — Import Manager, Midwest Window Supply (Ohio, USA)
"We tested TJJ's casement handles against our previous supplier. TJJ's had tighter spindle tolerance and better finish consistency. The MOQ of 500 let us test four designs without overcommitting. Lead time was 18 days — two weeks faster than our China average."
Sarah L. — Brand Owner, Heritage Window Hardware (Georgia, USA)
"I needed an antique brass finish that matched my existing product line. TJJ sent three color chip options within a week. The OEM packaging they designed for us — with our logo and barcode — saved me months of sourcing separate packaging vendors."
David R. — Wholesaler, Pacific Coast Building Supply (California, USA)
"The CIF pricing to Long Beach was transparent — no hidden port charges. We ordered 8,000 pcs of their cam lock handles in brushed nickel. Every carton had a packing list and the count matched. That level of accuracy is rare."
James K. — Sourcing Agent, Apex Global Sourcing (Florida, USA)
"I audit foundries for a living. TJJ's ISO records, material test certificates, and in-process QC checkpoints are as good as any Tier 1 supplier I've seen in Zhejiang or Guangdong. Plus they reply to emails within a few hours despite the time difference."
Emily W. — Product Development Manager, GreenBuild Windows (Oregon, USA)
"We needed a custom tilt-turn handle with a longer gearbox spindle. TJJ's engineering team modified the mold in 12 days and the sample fit our window profile perfectly. Their casting quality actually improved our lock engagement consistency."
Trust Built Over Two Decades
TJJ is not a trading company with a rented booth. We own and operate the foundry. That means direct quality control, faster communication, and engineering support that doesn't get lost in translation.
- ✅ Founded: Over 20 years in casting
- ✅ Facility: 12,000 m², 80+ skilled workers
- ✅ Certifications: ISO 9001:2015, CE, RoHS
- ✅ Export track record: USA, South America, Europe, Africa
- ✅ Main products: Ornamental iron fences, window & gate accessories, cast iron pipe fittings
TJJ factory exterior — Hebei, China
James Mitchell — Senior Hardware Sourcing Consultant
"15 years in architectural hardware procurement across China, Vietnam, and India. I've audited over 200 foundries and helped US importers reduce rejection rates by 40% through better supplier selection. At TJJ, I lead product quality validation for North American projects."
Ready to Source Your Wholesale Window Lock Handle?
Send us your drawings or target price. We'll reply within 6 hours with a quotation, MOQ, and lead time.
Shijiazhuang TJJ TRADE CO., LTD. | Hebei, China | Foundry since 2000s
Disclaimer: All technical data, certifications, and commercial terms are provided based on current production capabilities and are subject to change. Please refer to the actual order confirmation and product specification sheet for binding parameters. Customer testimonials reflect individual experiences and are not guarantees of specific results. Product images are representative; actual finish may vary by batch.
