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lock Manufacturers

I have found results from10000+products and5000+suppliers aboutlock

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Satisfies 1/1 of your requirement
Zinc Alloy Double Open Door Lock

Zinc Alloy Double Open Door Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Super Double Cylinder Zinc Alloy Lock

Super Double Cylinder Zinc Alloy Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Full Brass Double Open Safe Lock

Full Brass Double Open Safe Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Cylinder Zinc Alloy Brass Lock

Double Cylinder Zinc Alloy Brass Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Full Brass Double Open Door Lock

Full Brass Double Open Door Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Open Zinc Alloy Safe Lock

Double Open Zinc Alloy Safe Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Cylinder Zinc Alloy Door Lock

Double Cylinder Zinc Alloy Door Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Cylinder Zinc Alloy Safe Lock

Double Cylinder Zinc Alloy Safe Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Cylinder Zinc Alloy Mortise Lock

Double Cylinder Zinc Alloy Mortise Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Cylinder Zinc Alloy Brass Door Lock

Double Cylinder Zinc Alloy Brass Door Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Secure Key Lock for Casement Doors

Secure Key Lock for Casement Doors

US$2.00-6.00
1 Piece(MOQ)
Sample Available
Secure Key Lock for Aluminum Doors

Secure Key Lock for Aluminum Doors

US$2.00-6.00
1 Piece(MOQ)
Sample Available
Secure Key Lock for Aluminum Casement Doors

Secure Key Lock for Aluminum Casement Doors

US$2.00-6.00
1 Piece(MOQ)
Sample Available
Double Open Cylinder Brass Door Lock

Double Open Cylinder Brass Door Lock

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Secure Key Lock for Steel Doors

Secure Key Lock for Steel Doors

US$2.00-6.00
1 Piece(MOQ)
Sample Available
Brass Double Open Door Lock Origin Wenzhou

Brass Double Open Door Lock Origin Wenzhou

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Open Cylinder Door Lock Manufacturer

Double Open Cylinder Door Lock Manufacturer

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Super Double Open Door Lock Manufacturer

Super Double Open Door Lock Manufacturer

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Cylinder Brass Door Lock Origin

Double Cylinder Brass Door Lock Origin

US$2.00-8.00
1 Piece(MOQ)
Sample Available
Double Cylinder Brass Door Lock Manufacturer

Double Cylinder Brass Door Lock Manufacturer

US$2.00-8.00
1 Piece(MOQ)
Sample Available

Sourcing guidance for Lock

What are the key technical standards and certifications I should look for when sourcing locks?

For mechanical locks, prioritize ANSI/BHMA Grade 1 (highest security) or Grade 2 for commercial use. For the European market, ensure compliance with EN 12209 or EN 1303. If you are sourcing smart locks, look for CE, FCC, and RoHS certifications to ensure electronic safety and environmental compliance. Additionally, fire-rated certifications (e.g., UL 10C) are essential if the locks are intended for fire doors.

How do I evaluate the security performance of smart electronic locks?

Focus on the encryption protocol (such as AES-128 or higher) to prevent hacking. Check if the lock features anti-peeping phantom password technology and biometric false recognition rates (FRR <1%). For hardware, ensure the lock body is made of 304 stainless steel or zinc alloy and includes a C-grade lock cylinder, which provides the highest level of technical opening resistance.

What material specifications are best for outdoor or coastal environments?

To prevent corrosion and rust, specify SUS 304 or SUS 316 stainless steel. For smart locks, ensure an IP65 or higher waterproof and dustproof rating. Request salt spray test reports (e.g., 48 to 96 hours) from the supplier to verify the durability of the surface finish against oxidation in humid or salty air.

What are the common usage scenarios and how do they affect product choice?

For Hotels, choose locks that support RFID cards and centralized management software. For Residential/Airbnb, prioritize Tuya or TTLock App integration with remote code generation. For Industrial/Commercial settings, focus on heavy-duty mortise locks with high cycle counts (tested for 500,000 to 1,000,000 openings).

Cross-Border Procurement Risks and Strategies for Locks

How can I mitigate the risk of receiving defective products in bulk orders?

Always request a pre-shipment inspection (PSI) by a third-party agency. Specifically, instruct them to perform a functionality test on 10% of the batch, checking for smooth latch movement and electronic responsiveness. Using Made-in-China.com's Secured Trading services can also provide a safety net for your payment until the goods pass inspection.

What should I consider regarding international shipping and customs for smart locks?

Smart locks often contain lithium batteries, which are classified as dangerous goods (UN3481). Ensure the supplier provides a UN38.3 test report and MSDS. To save on shipping costs and avoid customs delays, consider shipping locks without batteries and sourcing them locally, or ensure the supplier is experienced in battery-inclusive logistics.

How do I negotiate better terms with lock manufacturers?

Focus on the warranty period and spare parts ratio. Negotiate for a 2-3% FOC (Free of Charge) spare parts allowance (such as PC boards or cylinders) to handle minor repairs locally. For large volumes, request OEM branding/logo laser engraving to be included in the unit price to enhance your brand value.

What are the transaction security tips for high-value lock procurement?

Verify the supplier's Audit Report on Made-in-China.com to confirm their factory scale and production capacity. Avoid paying via untraceable methods; instead, use L/C (Letter of Credit) or T/T with a clear milestone-based payment schedule (e.g., 30% deposit, 70% after inspection but before shipment).

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