How to Make Carbon Steel Customized Torsional Spring for Door Locking System
Price
Min. Order Reference FOB Price
10,000 Pieces US$0.10-1.00 / Piece
Sepcifications
- Function Pressed, Buffer
- Material Steel
- Usage Industrial, Auto, Motorcycle
- Load Type Torsion
- Production Process Cold Roll
- Shape Coil
- Transport Package OPP Bags with Blank Carton and Outer Wooden Case
- Specification customized
- Trademark DOFO
- Origin Wenzhou, China
- Product Name Torsion Spring for Door Locking
- Business Mode Factory OEM Service
- Material Standard GB 4357-09 or Equivalent
- Winding Direction Right Winding
- End Type Close and Ground
- Surface Treatment Trivalent Zinc Coating
- Coating Thickness 8~10 Micrometer
- Testing Method Random Sample Inspection
- Tolerance GB Standard, Grade II or as Per Your Requirement
- Spring Rate Tolerance +-3%~10%
- Aql Level Aql1.0
- Certificate ISO9001, SGS, RoHS, CE
- Normal Carton Size 23X23X31/Cm with No Mark
Product Description
Product Description carbon steel customized torsional spring for door locking system Commonly used torsional or compression springs mounted on the mandrel or a shaft of a door hinge to apply pressure onto the hinge's plates when a door which is pushed open is required to close automatically after ...
