Takigen
Takigen A-310-5 Small Waterproof Lock Handle Series

Manufacturer: TAKIGEN MFG.CO.,LTD.
Model: A-310-5
The built-in pin tumbler system makes it difficult to unlock the door with anything other than the special handle.
Waterproof type (uses O-ring and packing)
Can be used on both the left and right hand
Specification
Material: Body/Zinc alloy (ZDC)
Surface finish: Chrome plating (MZCr)
Maximum applicable plate thickness: 3mm
Accessories: Large nut, stopper plate
Applications
Small control panels and various small cabinets