38 400 flip spout cap
- Home
- Products
- Flip top cap
- 38 400 Flip Spout Cap
Everything You Need to Know About 38/400 Flip Spout Cap
A spout cap in the 38/400 size offers more than a simple closure. For packaging that needs controlled flow, easy access, and reliable sealing, the flip spout cap delivers. From sauces to personal care products, brands rely on this cap style for convenience, hygiene, and shelf appeal.
What Exactly Is a Flip Spout Cap?
A flip spout cap combines a hinged cover with a protruding nozzle for precise dispensing. Users flip open the lid and squeeze or pour the contents directly. This design reduces mess, controls flow, and minimizes contamination.
In a 38/400 flip top cap size, the diameter is 38mm, with a 400-thread finish. This format is common for wide-mouth bottles, making it ideal for viscous or granular products.
Why Cap Size Matters in a 38/400 Spout Cap
Cap size influences product performance in several ways:
Flow Rate: The 38mm opening allows thicker liquids to move easily.
User Comfort: Larger lids are easier to open, even for users with limited dexterity.
Seal Quality: Correct thread size prevents leaks during storage or shipping.
Choosing the wrong size can cause product waste, poor customer experience, or damaged brand reputation.
Who’s Using Flip Spout Caps in Packaging
Spout cap designs appear across industries because they work in varied settings:
Condiment makers: For ketchup, mustard, salad dressings, and syrups.
Personal care brands: For shampoos, body washes, and lotions in squeeze bottles with flip top cap designs.
Industrial products: For cleaning chemicals and lubricants where controlled flow matters.
This cap design balances safety with ease of use, making it a favorite among both consumers and manufacturers.
Features That Actually Solve Real Packaging Problems
When produced by an experienced plastic flip top cap manufacturer, a flip spout cap delivers these benefits:
✔ Leak prevention through precision-engineered threads
✔ One-hand operation for convenience on the go
✔ Durable hinge design to withstand repeated flips
✔ Custom colors for brand recognition
✔ Food-safe and chemical-resistant materials such as PP or HDPE
How Is a Flip Spout Cap Made?
Producing a plastic flip top cap involves several steps:
Mold Design: CAD software defines the spout size, hinge strength, and sealing areas.
Injection Molding: Molten resin is injected into precision molds.
Cooling: Parts are cooled to maintain shape and strength.
Assembly: Hinges and lids are connected, often by automated machinery.
Quality Control: Caps are tested for leaks, hinge durability, and fit accuracy.
Reliable plastic flip top cap suppliers use strict testing to maintain consistent quality.
We Offer a Wide Range of Custom Size and Color Options
Your product line deserves packaging that matches its identity. We supply 38/400 flip top cap options in:
Multiple orifice diameters for different product viscosities
Pantone-matched colors for branding consistency
Glossy or matte finishes for visual impact
Specialized materials for UV resistance or chemical compatibility
From pet bottle cap designs to industrial-grade closures, our customization process supports your specific needs.

Customers’ Common Questions—Answered
Q: Are spout caps safe for food products?
Yes—made from FDA-approved materials suitable for food contact.
Q: Can I order in small quantities?
We offer flexible minimums to support growing businesses.
Q: Will a 38/400 spout cap fit all 38mm bottles?
Only if the neck finish matches the 400 thread standard.
Q: Can I get my caps in custom colors?
Absolutely—we provide full-color customization for branding.
Why Choose Us for Your Spout Cap Requirements
Years of experience supplying major brands worldwide
Flexible production for both small and large orders
Fast turnaround without sacrificing quality
Material expertise in PP, HDPE, and specialty blends
Comprehensive testing to verify sealing and hinge strength
We don’t just manufacture caps—we create packaging that enhances your product’s performance and appeal.
A spout cap in 38/400 size blends functionality, durability, and consumer convenience. By choosing the right supplier, you get a cap that matches your product’s needs, improves user experience, and protects your brand reputation. Whether for food, personal care, or industrial goods, the flip spout cap is a practical choice that delivers consistent results.
All Caps in Stock | Fast Delivery
Get A Free Sample Now
Ready to ship within 3 days. Competitive price. Free samples available!
*Minimum order quantity of 10,000 units.