MZ868-1B SUS304 Stainless Steel Wire Polished IP54 Quarter-Turn L-Handle Industrial Cabinet Lock with Integrated Hook Latch

Full Technical Specifications

• Model Number: MZ868-1B
• Material: SUS304 stainless steel (entire lock)
• Surface Finish: Wire polishing (brushed / linished) — corrosion-resistant, fingerprint-resistant, hygienic
• Protection Rating: IP54 (dust-protected, splash water resistant)
• Operation Type: Quarter-turn (90° rotation) opening or closing
• Hand Configuration: Reversible (RL — compatible with left and right hand)
• Handle Type: Long flat bar L-handle with integrated hook latch, 110mm height × 20mm width, L=45±2mm grip
• Housing Diameter: Φ32mm
• Shaft Type: B-type cam shaft, Φ8mm diameter, t=4mm
• Mounting Dimensions: H=18mm, 35mm, Φ6mm, Φ13mm, Φ23mm, 40mm
• Overall Side Height: 122mm
• Handle Width: 23mm (top), 20mm (bottom)
• Hook Latch: Integrated at bottom of handle for positive latching with strike plate
• Mounting Cutout: Square 20.1mm × 20.1mm with Φ22.5mm clearance; elongated cutout plate 152mm length with Φ10.5mm bottom hole
• Mounting Method: Through-panel with nut fixation
• Rotation Angle: 90°
• Core Features: Full SUS304 corrosion-resistant construction, wire polished brushed finish, integrated hook latch, IP54 protection, ergonomic long flat bar L-handle, B-type cam shaft, square cutout mounting, quarter-turn 90° operation, left/right hand reversible, hygienic easy-to-clean

Core Product Features & Advantages

1 Premium SUS304 Stainless Steel Construction

The entire lock is fabricated from premium SUS304 stainless steel, providing excellent corrosion resistance, oxidation resistance and structural durability. Suitable for both indoor and outdoor environments, including damp, coastal, food processing and mildly corrosive conditions, it maintains reliable performance over years of service without rusting or degrading. The all-stainless construction ensures consistent material properties and long-term reliability.

2 Wire Polished (Brushed) Finish for Hygienic Corrosion-Resistant Appearance

The wire polishing (brushed/linished) finish creates a refined, directional metallic surface that resists fingerprints, scratches and smudges, while providing enhanced corrosion resistance. The brushed finish is easy to clean and sanitize, making it ideal for medical, laboratory, food processing and cleanroom applications where hygiene and appearance are critical. The consistent wire pattern also hides minor surface imperfections and wear over time.

3 Integrated Hook Latch for Positive Secure Latching

The innovative long flat bar handle features an integrated hook latch at the bottom that engages with a strike plate on the cabinet frame, providing secure, positive latching without requiring a separate cam or roller mechanism. The hook design ensures the door is firmly pulled into the closed position and resists vibration-induced opening, making it particularly suitable for machinery, transportation equipment and high-vibration industrial environments.

4 Ergonomic Long Flat Bar L-Handle

The long flat bar L-handle (110mm height, L=45±2mm grip) provides an ergonomic, high-torque grip that enables easy quarter-turn operation even when wearing work gloves. The extended lever offers enhanced leverage for overcoming latching resistance, while the flat bar design provides a comfortable, stable grip surface. The clean, minimalist handle design contributes to a modern, professional appearance.

5 IP54 Protection for Indoor Industrial Environments

The IP54 protection rating ensures the lock is dust-protected and resistant to splash water from any direction, making it suitable for indoor industrial environments including factories, workshops and equipment rooms where dust and occasional moisture exposure may occur. The robust SUS304 construction and sealing provide reliable performance in standard industrial conditions.

6 B-Type Cam Shaft with Square Cutout Mounting

The B-type cam shaft (Φ8mm, t=4mm) ensures positive, slip-free engagement for reliable latching. The square cutout mounting (20.1mm × 20.1mm) with Φ22.5mm housing clearance ensures precise, rotation-free panel installation. The elongated cutout plate (152mm length) with Φ10.5mm bottom hole accommodates the hook latch mechanism and provides additional mounting stability. The left/right hand reversibility (RL) reduces inventory requirements and simplifies procurement.

Application Fields

1. Electrical control cabinets, low-voltage distribution boxes, frequency converter enclosures and PLC equipment housings requiring secure quarter-turn locking
2. CNC machine tool guards, automation equipment protective doors and industrial machinery access panels (high vibration environments)
3. Communication equipment cabinets, server boxes and signal transfer enclosures
4. Food processing equipment, stainless steel sanitary cabinets and cleanroom facility enclosures (SUS304 hygienic surface)
5. Medical equipment housings, laboratory analytical instruments and pharmaceutical manufacturing enclosures
6. Outdoor monitoring equipment, weather-resistant instrument panels and coastal equipment enclosures (SUS304 corrosion resistance)
7. Marine and boat equipment, RV accessories and outdoor fixtures requiring corrosion-resistant stainless steel hardware
8. Sheet metal tool cabinets, industrial console doors and storage enclosures
9. Transportation equipment, vehicle access panels and vibration-prone applications requiring hook latch security
10. Applications requiring IP54 protection, SUS304 brushed finish, hook latch security and left/right reversible installation

Installation & Maintenance Guidelines

Step-by-Step Installation Procedures

1. Determine the door hand configuration (left or right) — the lock is reversible for both
2. Determine the installation position on the cabinet door panel according to the dimension drawing
3. Cut a square mounting hole of 20.1mm × 20.1mm in the cabinet door panel, ensuring clean, straight edges
4. If using the elongated cutout plate, prepare the 152mm × appropriate width opening with Φ10.5mm bottom hole for the hook latch
5. Install the strike plate on the cabinet frame at the corresponding position for the hook latch engagement
6. Ensure the sealing gasket is properly positioned on the lock housing flange
7. Insert the B-type cam shaft through the square cutout from the front of the door panel
8. From the rear of the door panel, install the nut and tighten to secure the lock to the panel, adjusting for the specific panel thickness
9. Test the 90° quarter-turn operation to verify smooth locking, proper hook latch engagement with the strike plate, and unlocking
10. Confirm the handle orientation matches the door hand configuration (left or right)
11. Adjust the strike plate position or cam if needed to achieve proper hook latching, door compression and consistent gap spacing

Installation Quantity Recommendation

• Standard single cabinet door: Install 1 quarter-turn L-handle lock centered vertically on the door
• Tall or wide doors (>1200mm height): Install 2 locks (top and bottom) or 1 lock with additional hinge support
• Note: Ensure the hook latch and strike plate are properly aligned for positive latching; adjust strike plate position as needed

Maintenance Instructions

1. Suitable for both indoor and sheltered outdoor environments; SUS304 construction provides good corrosion resistance for coastal and mildly corrosive conditions
2. Wipe the wire polished SUS304 handle and housing periodically with a soft dry or slightly damp microfiber cloth to remove dust, fingerprints and grease; follow the grain direction of the wire polish when wiping; avoid abrasive cleaners or scouring pads that may scratch the brushed finish
3. Check the mounting nut tightness quarterly to prevent loosening from vibration
4. Inspect the sealing gasket annually for any signs of cracking, deformation or wear; replace if the IP54 seal is compromised
5. Inspect the SUS304 wire polished surface annually for scratches or corrosion; for coastal applications, rinse with fresh water periodically to remove salt deposits
6. Test the 90° quarter-turn operation and hook latch engagement quarterly to verify smooth locking, positive latching and unlocking; lubricate the B-type shaft and hook pivot if any binding is detected
7. Inspect the hook latch and strike plate annually for any signs of wear, bending or misalignment; adjust or replace components if latching security is compromised
8. Verify that the hook latch properly engages the strike plate and resists vibration-induced opening
9. For high-vibration applications, inspect more frequently (quarterly) to ensure hook latch and strike plate alignment remains stable

Product Summary

MZ868-1B is a quarter-turn L-handle industrial cabinet lock manufactured entirely from premium SUS304 stainless steel with a durable wire polishing (brushed) finish, featuring an integrated hook latch for positive secure latching, IP54 protection, B-type cam shaft (Φ8, t=4mm), square cutout mounting (20.1mm), 90° quarter-turn operation and left/right hand reversibility. Its full SUS304 construction provides excellent corrosion resistance and hygienic properties, the wire polished finish offers a fingerprint-resistant easy-to-clean surface, the integrated hook latch ensures secure vibration-resistant latching without separate cam components, the ergonomic long flat bar L-handle enables comfortable high-torque gloved operation, the IP54 sealing ensures reliable dust and splash protection, and the square cutout mounting ensures straightforward rotation-free installation. With its robust all-stainless construction, secure hook latching and premium brushed appearance, it is an ideal locking solution for electrical cabinets, distribution boxes, machinery enclosures, communication equipment, food processing enclosures, medical devices, marine equipment and various industrial applications requiring corrosion-resistant secure latching hardware with premium brushed stainless steel appearance.