Catalog reference · Page 24
Security & Door Chains
Keyed Door Chain Lock
WK-903
Keyed Door Chain Lock, catalog reference WK-903. Contact us with this model number to confirm the dimensions, installation requirements and available supply options.
ModelWK-903
Catalog productKeyed Door Chain Lock
Catalog page24
Please reference the model number when contacting us. Final dimensions, materials, finishes and packaging are confirmed before sampling or production.
Quality confirmation
Checked against the approved requirement
Inspection points are agreed according to the product and order, without claiming unverified test values.
01
Material
Confirm specified material and key components.
02
Dimensions
Check critical dimensions against the approved drawing or sample.
03
Function
Check movement, alignment and operation according to the product.
04
Finish & packing
Review appearance, finish consistency and confirmed packaging.