Large Flat Corner Protector 50mm Chrome Plated 3 Holes

Large Flat Corner Protector for Oversized Cases - 50mm 3 Holes

Applicable Buyers

• Oversized flight case and ATA case manufacturers
• Heavy machinery and industrial equipment transport case builders
• Large military storage and field case suppliers
• Wooden export crate and heavy packaging manufacturers
• Generator and power equipment case producers

What Makes This Large Corner Protector Different

Maximum Coverage for Oversized Cases

At 50mm face length, this is the largest model in the 7201 series. Standard corners (35mm or 40mm) can leave gaps on thick plywood edges, but the 7201-50 provides full coverage for cases built with 15mm, 18mm, or thicker plywood. The extended surface area creates a larger contact patch that distributes stress more effectively - reducing the risk of joint failure in heavy-duty applications.

Smooth Surface - Professional Clean Finish

The 7201-50-FE-CR features a completely smooth surface across all three faces - no dimples, no raised dots, no markings. The chrome plating provides a bright, mirror-like finish that enhances the professional appearance of large cases and equipment boxes.

45g Weight - Substantial But Balanced

While 45g is heavier than smaller models, this weight is necessary for the larger 50mm size. The 0.8mm thickness strikes the right balance - providing robust structural integrity for large cases while keeping weight manageable for handling and transport.

3-Hole Fixation

Three mounting holes (Ø4.3mm) deliver secure fixation with minimal installation effort. Compatible with M4 or M5 rivets, self-tapping screws, or spot welding.

Flat Corner vs. Spherical Corner: Which One Do You Need?

When to Choose This Large 50mm Flat Corner

You're building oversized cases. If your case uses 15mm, 18mm, or thicker plywood, standard 35mm or 40mm corners won't fully cover the edges. The 50mm face length provides complete coverage - no exposed edges, no gaps.

You need heavy-duty reinforcement. Large cases carry heavy equipment. The 50mm face length distributes stress across a wider area, providing the structural support needed for generators, heavy machinery, and large audio systems.

You want a professional, clean appearance. The smooth chrome finish on all three faces gives large cases a polished, professional look - important for equipment that clients see.

You need reliable corrosion protection. Chrome plating protects the steel from rust and wear, ensuring long-term durability even in demanding environments.

Technical Specifications

Data based on engineering drawing 7201-50-FE-CR. For reference only - not for mold making.

Applications

Installation & Maintenance

Installation:

• Position the corner against the case edge
• Mark hole positions using the 3 holes as a guide
• Pre-drill with a 3.8mm bit (slightly smaller than 4.3mm for tight fit)
• Secure with M4 or M5 rivets, 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
• For welding operations, use unplated blanks to avoid heat damage

Proven in the Field

NRH chrome plated flat corners are used by case manufacturers across North America, Europe, and Asia. The 7201-50 is the largest model in the series, trusted for oversized flight cases, heavy machinery transport boxes, and large wooden export crates where maximum reinforcement is required.

Common applications include:

• Oversized flight cases for large audio and lighting equipment
• Heavy machinery transport and storage boxes
• Large military storage and field transport cases
• Industrial generator and power equipment cases
• Wooden export crates and heavy packaging boxes

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

• 50mm face length - largest model in the 7201 series, maximum coverage for oversized cases
• Smooth surface on all three faces - clean, professional finish with no markings
• Chrome plated mild steel - cost-effective corrosion protection with bright gloss
• 0.8mm thickness - lightweight yet durable for heavy-duty applications
• 45g weight - substantial reinforcement for large cases
• 3-hole fixation with Ø4.3mm holes - compatible with M4/M5 rivets or screws
• Compatible with rivets, self-tapping screws, or spot welding
• 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.