70mm brass round turn knob lock cylinder
USD $2 - $5 /Set
Min.Order:1000 Sets
Zhongshan Trust Hardware Manufacture Co., Ltd.
china 70mm brass round turn knob lock cylinder
Item:A70SN-K01
"A" mean Standard key ; "B" mean Computer key
"70" mean Length
"SN" mean Finish
"K01"mean Type of Turn Knob.
The name classification of the lock cylinder.
In accordance with DIN 18 252/09-1999 and EN 1303 standard,continental cylinders are divied into three quality grades:
By the number of pins Grade I & II: 5 pins ; Grade III:6 pins
Key differ rate
Grade I & II: 1/30000 Grade III: 1/100000
European standard cylinder with multiple device for the maximum security purpose,in addition to the above number and combinnation of differentpins,there are also some more methods as follows:Anti-drilling protection protection against demolition Increase the security pin.
Note:the above structure is common functon,if customer need special enhanced security performance requirements or other special needs,please specify when ordering.
Determination of the cylinder length
1,The total length of cylinder = door thickness + thickness of the fitting on the outside + thickness of the fitting on the inside
2,Cylinder is equal sides cylinder if it is fitted in the middle of door.
3,Cylinder in unequal sides cylinder if it is notin the middle of the door,
4,The cylinder must protrude only max 2-3mm from the fitting on the outside and inside
Other kinds of our HOT SELLING brass Mortise Cylinder;
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