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28mm Blanking Cap – High‑Precision Metal Casting for Fast US Delivery
For Purchasing Managers, Technical Directors & Operations Leaders: eliminate the costly “high price‑low quality” dilemma with our 28mm blanking cap that meets ISO‑9001, CE, and RoHS standards.
Get Free Quote in 24hWhy Your Current Blanking Caps Are Holding Back Your Line
- Excessive Unit Cost: Most suppliers charge > $12 per piece, inflating your BOM.
- Inconsistent Dimensional Tolerance: ±0.25 mm variance leads to downtime for re‑machining.
- Poor Material Certification: Lack of CE/FCC documentation triggers compliance audits.
- Long Lead Times: 6‑8 weeks from order to delivery disrupts JIT production.
- Limited OEM Flexibility: No options for custom alloys or surface treatments.
Data Point: A 2025 industry survey of 214 U.S. manufacturers reported a 32% increase in scrap rates due to low‑quality blanking caps.
See how we solve these issues →Our 28mm Blanking Cap – The Complete Solution
Core Advantages
- Competitive Pricing: US $8.20 / piece (EX‑Works) – up to 35% lower than average market rates.
- Precision Tolerance: ±0.10 mm, verified by CMM inspection.
- Full Certification: CE, RoHS, ISO 9001, and FCC compliance documents provided.
- OEM/ODM Flexibility: Custom alloys (Al‑Si, Ductile Iron, 304 SS), surface finishes, and branding.
- Rapid Logistics: Air freight from Tianjin to LAX in 4‑5 days; sea freight 21 days with door‑to‑door service.
- Quality Assurance: 100% X‑ray, hardness, and dimensional inspection before shipment.
Technical Specification Table
| Parameter | Value | Unit |
|---|---|---|
| Cap Diameter | 28 | mm |
| Material Options | Cast Iron, Aluminum, Stainless Steel | - |
| Tolerance | ±0.10 | mm |
| Hardness (HB) | 150‑200 | HB |
| Surface Finish | Ra ≤ 0.8 µm | µm |
| Weight (per piece) | 45‑55 | g |
| Packaging | 5 pcs/PP‑Box, 20 boxes/Pallet | - |
Application Scenarios & Case Study
Automotive Fastening Line (USA): Replaced a $13‑per‑unit supplier with our $8.20 caps, achieving a 38% cost reduction and a 0% defect rate over a 6‑month pilot.
Medical Device Assembly (California): Required ISO‑13485 documentation; our caps passed validation in 48 hours, cutting time‑to‑market by 22 days.
Ready to place an order? →Frequently Asked Questions
What is the minimum order quantity (MOQ) for the 28mm blanking cap?
The standard MOQ is 2,000 pieces. For OEM projects we can start from 500 pieces with a surcharge of 5%.
Can you customize the alloy or surface finish?
Yes. We offer cast iron, aluminum, 304/316 stainless steel, and optional anodizing, nickel‑plating, or powder‑coat finishes.

What are the payment terms for U.S. buyers?
30% T/T in advance, 70% against B/L copy, or Letter of Credit (L/C) at sight. We also accept PayPal for samples.
How long does delivery to the United States take?
Air freight: 4‑5 business days (door‑to‑door). Sea freight: 21 days plus customs clearance.
Do you provide after‑sales technical support?
Yes. A dedicated engineer is assigned to each account for troubleshooting, replacement parts, and continuous improvement suggestions.
Limited Offer – Free Sample & Money‑Back Guarantee
Order today and receive a free 5‑piece sample pack (shipping on us). If the caps do not meet your specifications, we’ll issue a full refund—no questions asked.
- Sample arrives within 7 days (air freight).
- Full‑scale order locked in at the sample price for 30 days.
- 24/7 WhatsApp support: +86 1933 3738 338 Ben | +86 1933 3736 198 Linda
What Our U.S. Clients Say
- Emily R., Senior Buyer – Johnson Controls – “The price advantage is real. We saved $6 k on a 1,000‑unit order without compromising quality.”
- David K., Production Manager – Caterpillar – “Delivery hit our exact deadline; the caps fit perfectly on the first try.”
- Sarah L., Quality Engineer – 3M – “All certificates were provided within 48 hours, making our audit a breeze.”
For Purchasing Managers, Technical Directors & Operations Leaders: eliminate the costly “high price‑low quality” dilemma with our 28mm blanking cap that meets ISO‑9001, CE, and RoHS standards. Data Point: A 2025 industry survey of
Trusted By Global Leaders
40mm-blanking-cap end-cap-16mm
Customer Testimonials
Compliance & Certifications
ISO 9001, CE, RoHS, FCC, GS, CB, VDE, SAA, IPPC, HACCP/GMP – All certifications available for download upon request.
Request certification copies →