flat spring washers with tension retention

{"cid":"91199727","title":"Active Preload Maintenance Locks Nuts and Bolts Tight Built-In Tension Retention Compresses to Maintain Pressure","imgUrl":"https:\/\/img.chinax.com\/nimg\/08\/d4\/d99103a0ee70108702de5507722d-200x200-1.jpg","attrs":{"Price":"Negotiable","Brand Name":"TOBO","Model Number":"Flat Spring Washers","Minimum Order Quantity":"1Pcs","Delivery Time":"15-30 Workdays","Certification":"ISO\/TUV\/SGS","Place of Origin":"Shanghai, China","Payment Terms":"T\/T, Western Union","Supply Ability":"15tons per month","Packaging Details":"Standard Shipping Package","Productname":"Flat Spring Washers","Types":"Flat Washer","Finish":"Zinc Plated","Surface Treatment":"Plain\/Plated\/Anodized\/Polish\/Passivated","Outerdiameter":"10 mm","Type":"Flat Spring Washer","Delivery":"7-15workdays","Inner Diameter":"3mm-30mm","Style":"Wedge, Bonded"}}

{"cid":"91222769","title":"Cross Recessed Blue White Zinc Plated Hex Head Bolt With Spring Flat Washers","imgUrl":"https:\/\/img.chinax.com\/nimg\/96\/8e\/ba3ebbafae10354cae5a2787090a-200x200-1.jpg","attrs":{"Price":"Negotiation","Brand Name":"YONGBIAO","Model Number":"Hexagon Bolt with Washer Assemblies","Minimum Order Quantity":"10000","Delivery Time":"7-25Days","Certification":"ISO9001","Place of Origin":"ZHEJIANG CHINA","Payment Terms":"T\/T","Supply Ability":"500Tons\/month","Packaging Details":"Carton Box\/Pallet\/Customized","Finish":"Blue-White Zinc Plated","Customized Support":"Customize Logo","Drive Style":"Phillips","Oem":"yes,according to your drawing","Service":"Customized OEM ODM Service","Point Style":"Sharp point","Surface Finishing":"Zinc Plaetd,Black Oxide,Nickel Plating","Quantity":"Available in different quantities"}}