Flat spring lock torsion door lock torsion spring zipper torsion for Door Knob Handle Lever Latch Internal Coil Repair

(1)Question:Is it compatible with any series?
Answer:This is a security door zipper, a flat spring and a torsion spring.

(2)Question:Is the item durable? 
Answer:Yes,Stainless steel, durable.

(3)Question:What size?
Answer:Inner diameters19mm,Outer diameters29mm.

1.This is a security door zipper, a flat spring and a torsion spring.

2.Spring for Door knob Handle Lever Latch Internal Coil Repair spindle lock torsion spring flat section wire 2.5 turn.

3.Raw material: stainless steel 304.

4.Inner diameters:19mm,Outer diameters:29mm.

5.This is a manufacturer substitution. Part may differ in appearance but is a functional equivalent to prior parts including.

Description
Features:

1.Genuine Original Equipment Manufacturer (OEM) part.

2.Easy to install, burglar door zipper, can be installed on the same way.

Specification:

• Color: black, as shown

• Dimensions: inner diameter of about 19mm, outer diameter of 29mm

• Uses: industrial

• Material: Stainless steel

• Load type: compression

Package includes:
1*Flat spring lock(other accessories demo in the picture is not included.)

Note:
Please allow 1-2mm errors due to manual measurement.
Due to the difference between different monitors, there are color differences, please take the real product as the standard.

Notes

●Picture is for illustration only, please select your requirements(Size 、Quantity).