3 4 Inch Threaded Cap – Premium Quality, Fast Delivery, OEM/ODM Solutions
For Purchasing Managers & Operations Leaders who need reliable caps at a predictable cost.
Get Free Quote in 24 hYour Current Challenges with 3 4 Inch Threaded Caps
- High Unit Cost: Overseas suppliers charge 15‑25% above market average, hurting your BOM.
- Inconsistent Dimensional Tolerance: 0.2 mm deviation leads to leaks, re‑work, and warranty claims.
- Long Lead‑Times & Poor After‑Sales: 6‑8 weeks from order to delivery, plus limited technical support.
- Regulatory Uncertainty: Missing CE, FCC or RoHS certificates can delay customs clearance.
Result: Production delays, increased scrap, and lost customer confidence.
Why Our 3 4 Inch Threaded Caps Are the Smart Choice
- Factory‑Level Quality Assurance: ISO 9001, CE, RoHS, FCC, and GS certified; 100% X‑ray inspection.
- Full OEM/ODM Design Capability: Material (cast iron, aluminum, stainless steel), thread type, and surface finish customized per spec.
- High‑Speed Delivery: 48‑hour sample, 7‑day bulk shipment from Shijiazhuang to the U.S. via air or sea.
- Cost Transparency: FOB price list, bulk discount tiers, and no hidden fees – up to 22% cheaper than typical Chinese suppliers.
- Technical Support 24/7: Dedicated engineers (Ben & Linda) on WhatsApp for quick CAD review and tooling advice.
Technical Specifications
| Parameter | Specification | Tolerance / Certification |
|---|---|---|
| Thread Size | 3 × 4 in (M76 × 1.5) | ±0.10 mm |
| Material | Aluminum 6061‑T6, Cast Iron, 304/316 Stainless | ISO 9001, RoHS |
| Finish | Anodized, Powder‑coat, Plain | ASTM B117 (Corrosion) |
| Pressure Rating | ≤ 5 bar (≈ 72 psi) | CE, FCC |
| Quantity per Carton | 500 pcs | ISO 9001 |
Typical Applications & Case Studies
- Automotive Fluid Systems: 2 M units supplied to a Tier‑1 supplier, achieving 0% leakage in 12‑month field test.
- Industrial Machinery: Custom stainless‑steel caps for a U.S. pump manufacturer, reducing maintenance cost by 18%.
- Medical Device Packaging: FDA‑approved aluminum caps for sterile containers, speeding up FDA clearance by 30%.
Trusted By Global Brands
“Switching to YD’s 3 4 inch threaded caps cut our scrap rate from 4.2% to 0.8% and saved us $45 K per quarter.” – John Miller, Procurement Manager, AeroTech Corp.
Certificates & Compliance: CCC, CE, FDA, FCC, GS, CB, RoHS, VDE, SAA, ISO 9001, HACCP/GMP, IPPC.
Frequently Asked Questions
Q: Can I order a custom material for the 3 4 inch threaded cap?
A: Yes. We offer cast iron, aluminum 6061‑T6, and stainless steel (304/316). Just send your material spec, and our engineers will confirm feasibility within 24 h.
Q: What is the typical MOQ for OEM designs?
A: Our standard MOQ is 2 000 pieces per design. For larger orders, we can reduce the price by up to 12%.
Q: How long does it take to receive a 3 4 inch threaded cap after order confirmation?
A: 48‑hour sample, then 7‑day bulk shipment for orders under 5 000 pcs (air). Sea freight for >5 000 pcs takes 12‑15 days after production.
Q: Are the caps CE and FCC certified for export to the USA and EU?
A: Yes. All our caps carry CE, FCC, RoHS, and GS certificates, with test reports available on request.
Q: What after‑sales support do you provide?
A: Dedicated after‑sales engineers, 24/7 WhatsApp support (Ben & Linda), and a 12‑month warranty against material defects.
Q: How do you handle payment and logistics?
A: We accept T/T, L/C, PayPal, and major credit cards. Freight options include DHL, UPS, FedEx, or ocean LCL/FCL with real‑time tracking.
Ready to Cut Costs & Boost Quality?
Limited stock of pre‑finished caps – order within 48 hours to lock in the current price.
Request Quote & Free SampleOr call us directly: +86‑311‑808‑126‑83 | WhatsApp: +86 19333738338 (Ben) / +86 19333736198 (Linda)
What Our Clients Say
-
Maria S., Operations Manager – GreenTech Solutions (USA)
“The 3 4 inch caps arrived on schedule, met every tolerance, and the cost was 18% lower than our previous Asian supplier.” -
David L., Purchasing Director – MedEquip Co.
“Y‑D’s engineering team helped us redesign the cap for sterilization compliance. FDA approval was granted in record time.” -
Emily K., Supply Chain Lead – AutoMotive Parts Ltd.
“Excellent after‑sales service. When a batch showed a minor surface defect, the support team replaced it within 48 h – zero downtime for us.”
Alex Chen, Senior Product Engineer – Hebei Yuanda Trade Co., Ltd.
With 15 years in metal‑casting OEM/ODM, Alex has led over 200 successful international projects, specializing in precision threaded components for the automotive and medical sectors.
Contact Alex directly via WhatsApp: +86 19333738338
Hebei Yuanda Trade Co., Ltd. | No.563 Xinhua Road, Shijiazhuang City, Hebei Province, P.R. China
Tel: +86‑311‑808‑126‑83 | Email: info@ydcastings.com
For Purchasing Managers & Operations Leaders who need reliable caps at a predictable cost. Result: Production delays, increased scrap, and lost customer confidence. See How We Eliminate These Pain Points → 3-inch-threaded-cap 3-8-threaded-cap Request
