Smooth Corner Protector 37mm Chrome Plated Gift Box Hardware

Triangle Corner Protector for Small Cases - 35mm Chrome Plated 3 Holes

What Makes This Triangle Corner Protector Different

Largest Coverage in the Triangle Series

At 35mm face length, the 7401-37-FE-CR offers the largest coverage in the triangle corner lineup. It provides significantly more edge protection than 22mm or 28mm models while remaining compact enough for small cases. This makes it ideal for boxes and cases that need substantial corner reinforcement.

Smooth Surface - Clean, Minimalist Aesthetic

This model features a smooth surface with no embossed grooves or markings - a clean, minimalist finish that suits modern packaging, contemporary jewelry boxes, and premium gift boxes. The smooth surface also makes it easier to clean and maintain, and it won't compete with the design of your packaging.

Lightweight 0.6mm Thickness - 14g

At 14g with 0.6mm thickness, this model strikes an ideal balance - lighter than 0.7mm models while offering more substance than ultra-thin 0.5mm corners. It provides reliable protection for larger boxes without adding unnecessary weight, making it ideal for air-shipped products.

Triangle Geometry - Clean, Professional Finish

The triangle geometry provides a clean, balanced appearance that complements small cases and boxes. The symmetrical three-way design distributes stress evenly across all three faces, ensuring consistent reinforcement on every side of the corner.

3-Hole Fixation System

Three mounting holes (Ø4.6mm) deliver secure fixation with minimal installation effort. Compatible with small rivets, self-tapping screws, or spot welding.

Triangle Corner vs. Standard Flat Corner: Which One Do You Need?

When to Choose This Smooth Triangle Corner

You're building larger small cases. The 35mm face length offers the largest coverage in the triangle corner series, ideal for boxes up to 350mm that need more reinforcement than 22mm or 28mm models provide.

You want a clean, minimalist appearance. The smooth surface with no embossed grooves provides a refined look that enhances modern packaging, contemporary jewelry boxes, and minimalist gift boxes.

You need a balanced weight-to-protection ratio. At 0.6mm thickness and 14g weight, this model offers more protection than 0.5mm corners while remaining lighter than 0.7mm options - the sweet spot for larger boxes.

You're using larger diameter fasteners. The 4.6mm mounting holes accommodate M4.5 or M5 rivets or screws, providing more secure fixation for medium-weight boxes.

Technical Specifications

Data based on engineering drawing 7401-37-FE-CR. For reference only - not for mold making.

Applications

What Are You Using Now?

If you're currently using no corner protection or plastic corners, upgrading to steel chrome corners is one of the lowest-cost ways to significantly improve your product quality perception and reduce corner damage returns.

The bottom line: A chrome steel corner is a one-time investment that pays for itself in fewer returns, higher customer satisfaction, and a more premium product image. At under $1 per corner, it's the smallest cost that makes the biggest visual difference.

Installation & Maintenance

Installation:

• Position the corner against the case edge
• Mark hole positions using the 3 holes as a guide
• Pre-drill with a 4.0mm bit (slightly smaller than 4.6mm for tight fit)
• Secure with small rivets, M4.5 or M5 self-tapping screws, or spot welding

Maintenance & Storage:

• Wipe with a soft cloth and mild detergent
• Do not use thinners, strong acids, or strong alkalis - these damage the plating
• Store in dry, ventilated areas - avoid prolonged damp conditions

Proven in the Field

NRH triangle corners are trusted by manufacturers of small cases, cosmetic boxes, jewelry packaging, and mini instrument cases worldwide. The 7401-37-FE-CR offers the largest coverage in the triangle corner series with a clean, smooth finish - making it the preferred choice for modern packaging and minimalist designs.

Common applications include:

• Modern jewelry boxes and presentation cases
• Minimalist gift boxes and contemporary packaging
• Cosmetic cases and beauty product packaging
• Wooden display boxes and exhibition cases
• Medical kit boxes and small cooler cases
• Premium product packaging with clean aesthetics

About NRH

NRH started manufacturing case hardware in 1996, with over 25 years of brand history.

Four product lines: latches, handles, hinges, and corner protectors. Over 3,000 product variations. OEM/ODM supported.

Certifications:

• National High-Tech Enterprise (2023)
• ISO 9001 Quality Management (2018)

Five production and distribution centers: Shanghai HQ, plus Beijing, Guangzhou, Zhengzhou, and Chongqing.

In Stock - No Minimum Order

No 500-piece minimum. No 100-piece minimum. Order 1 piece and we ship.

First-time buyers often need to test fit before committing. Order a few samples. Test them on your cases. Verify dimensions, finish, and installation. When you're satisfied, order production quantities.

Same-day dispatch on payment confirmation.

Key Takeaways

• 35mm face length - largest model in the triangle corner series
• 14g weight - lightweight, balanced protection
• 0.6mm thickness - ideal middle-ground between 0.5mm and 0.7mm
• Smooth surface - no embossed grooves, clean minimalist aesthetic
• 3-hole fixation with Ø4.6mm holes - compatible with M4.5 or M5 fasteners
• Perfect for modern jewelry boxes, minimalist gift boxes, cosmetic cases, and wooden display boxes
• In stock - no minimum order, samples ship same day
• Customizable in stainless steel and alternative finishes upon request
• NRH manufacturing case hardware since 1996 - ISO 9001 certified

Contact Sales

Email: nrh-gz@nrh.cn
Phone: +86 180 1797 5137

For bulk pricing, customization, or sample requests, contact our sales team directly.

When inquiring, please provide: Model number + quantity + destination port.