304 Stainless Steel Flat Corner Protector 40mm 3 Holes

304 Stainless Steel Flat Corner Protector for Cases - 40mm 3 Holes

Applicable Buyers

• Medical equipment case manufacturers requiring corrosion-resistant hardware
• Marine and offshore equipment case builders
• Military and defense case suppliers
• Food and pharmaceutical industry case manufacturers
• Outdoor equipment and instrument case producers
• Premium flight case and ATA case manufacturers

What Makes This Stainless Steel Corner Protector Different

304 Stainless Steel - Inherent Corrosion Resistance

Unlike chrome-plated mild steel corners where the protective coating can be scratched or worn away, 304 stainless steel provides inherent corrosion resistance throughout the entire material. This makes the 7201-40-1-S04-ZG ideal for applications where rust protection is critical - medical equipment cases, marine environments, food processing facilities, and outdoor applications. 304 stainless steel also offers excellent durability, high-temperature resistance, and good formability.

Vibratory Polished Finish - Smooth and Professional

The vibratory finishing process uses high-frequency vibration with grinding media to polish the surface evenly. This creates a smooth, consistent finish that enhances the natural appearance of the stainless steel. Unlike electroplating, vibratory polishing does not add a coating that can chip or peel - the smooth surface is the metal itself. This is particularly important for medical and food industry applications where surface integrity and cleanability are essential.

40mm Face Length - Extended Coverage

At 40mm face length, this corner provides more surface coverage than standard 35mm models. The larger footprint distributes stress across a wider area, making it ideal for larger cases and applications requiring additional reinforcement.

3-Hole Fixation

Three mounting holes (Ø4mm) deliver secure fixation with minimal installation effort. Compatible with rivets, self-tapping screws, or spot welding.

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

When to Choose This Stainless Steel Flat Corner

Corrosion resistance is critical. 304 stainless steel provides inherent rust protection that won't wear off. Choose this for medical equipment cases, marine environments, food processing, outdoor storage, and any application exposed to moisture or chemicals.

You need a premium, professional appearance. The vibratory polished finish provides a smooth, consistent surface that looks high-end and professional. Ideal for premium cases where appearance matters.

You need a larger corner for bigger cases. At 40mm face length, this corner provides extended coverage for larger cases and applications requiring additional reinforcement.

You need compliance with industry standards. 304 stainless steel meets hygiene and corrosion resistance requirements for medical, food, and pharmaceutical applications.

Technical Specifications

Data based on engineering drawing 7201-40-1-S04-ZG. 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 3.5mm bit
• Secure with rivets, self-tapping screws, or spot welding

Maintenance & Storage:

• Wipe with a soft cloth and mild detergent
• Store in dry, ventilated areas - avoid prolonged damp conditions
• Do not use acidic cleaners or abrasive tools
• For welding operations, use unplated blanks to avoid heat damage

Proven in the Field

NRH stainless steel flat corners are used by case manufacturers across medical, marine, defense, and premium audio industries worldwide. The 304 stainless steel construction provides reliable corrosion resistance that standard chrome-plated corners cannot match.

Common applications include:

• Medical equipment transport cases requiring sanitary surfaces
• Marine instrument cases exposed to saltwater environments
• Outdoor broadcast and field equipment cases
• Premium audio and lighting flight cases
• Military field operations cases
• Food processing and pharmaceutical equipment cases

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)
• ROHS Compliant

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

• 40mm face length - extended coverage for larger cases
• 304 stainless steel construction - inherent corrosion resistance that won't wear off
• Vibratory polished finish - smooth, professional appearance without coatings
• ROHS compliant - meets environmental standards
• 3-hole fixation - simple, secure, and quick to install
• 22g weight - lightweight yet durable
• Ideal for medical, marine, food, outdoor, and premium applications
• Compatible with rivets, self-tapping screws, or spot welding
• In stock - no minimum order, samples ship same day
• Customizable in other stainless steel grades and 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.