Heavy Duty Triangular & Rounded Corner Protectors for Equipment Cases
17 ProductsTriangular and rounded corner protectors are compact, heavy-duty metal hardware designed for the 90-degree corners of industrial equipment cases, aluminum boxes, wooden crates and storage containers. The triangular-style protectors feature a streamlined three-sided design, offering reliable corner reinforcement while saving space on compact or slim-profile cases. The rounded-style protectors have smooth, curved edges that minimize snagging and provide enhanced impact resistance, making them ideal for frequently handled or transported cases. Constructed from high-strength metal with corrosion-resistant plated finishes, these protectors deliver long-lasting performance in heavy-duty, commercial and industrial environments. Also known as: compact case corners, smooth edge corner guards, impact-resistant box protectors.
Complete Triangular & Rounded Corner Protectors Collection
Frequently Asked Questions About Triangular & Rounded Corner Protectors
We have no minimum order for in-stock catalog items - order even 1 piece if you need it. Shipping is freight collect for sample and small quantity orders. For custom laser engraving, private labeling, or non-catalog specifications, MOQ varies by product model and manufacturing process. Contact our sales team with your specific requirements for a precise quote and lead time.
We manufacture in 5 primary materials, each specified for different operating environments:
- SUS304 stainless steel - excellent corrosion resistance with passivated finishes available for enhanced durability in harsh environments (consult our engineers for specifications). Our most popular choice for marine hardware, food processing equipment, and outdoor enclosures.
- SUS201 stainless steel - cost-effective option for indoor dry environments with good general corrosion resistance.
- Cold-rolled carbon steel (SPCC) - high tensile strength for heavy-load applications, available with zinc, nickel, or chrome plating for corrosion protection.
- Zinc alloy (ZAMAK) - precision die-cast for complex geometries, naturally corrosion-resistant, ideal for decorative and medium-duty applications.
- ABS plastic - lightweight, non-conductive, and chemical-resistant, perfect for electronic equipment cases and medical instrument enclosures.
- In-stock items: Ship within 48 hours of order confirmation.
- Standard catalog models (made-to-order): 7-15 business days.
- OEM / custom tooled products: 25-35 business days depending on part complexity and tooling requirements.
- Express / urgent orders: Rush production is available for an additional fee - contact your account manager for options.
Absolutely - OEM and ODM manufacturing is a core part of our business. We support:
- Custom sizes & shapes: Full tooling design based on your drawings, samples, or concept sketches.
- Surface finish options: Polished, brushed, powder coated, chrome plated, nickel plated, zinc plated, and custom colors.
- Logo marking: Laser engraving, silk screening, embossing, or custom mold inserts.
- Packaging customization: Branded boxes, foam inserts, custom labels, and export-grade packaging.
- Material modification: Custom alloys, food-grade 316 stainless steel, and RoHS-compliant materials.
Our factory is ISO 9001:2015 certified and operates under GJB (Chinese Military Standard) quality management systems for defense-grade products. Every batch undergoes rigorous testing before shipment:
- Surface finish testing - coating thickness measurement, adhesion cross-cut test, and roughness inspection ensure consistent finish quality across every batch.
- Load & tensile testing - verified working load and ultimate tensile strength for every latch, hinge, and handle model.
- Cycle durability testing - 10,000+ open/close cycles for moving components.
- Dimension inspection - 100% caliper and gauge inspection for critical dimensions.
- RoHS compliance - all materials meet EU RoHS 2.0 standards for restricted substances.
Both are flat corner brackets used to reinforce case corners, but they differ in profile and purpose:
- Triangular corner brackets - L-shaped with a straight or angled diagonal brace. Provides strong structural reinforcement but has a sharp-cornered appearance. Best for industrial utility cases where function matters more than aesthetics.
- Rounded corner brackets - L-shaped with a curved or rounded outside profile. More decorative and safer to handle (no sharp edges). Common on display cases, office furniture, and consumer-facing products.