class 4 8 square lock nut

{"cid":"91225908","title":"Stainless Steel Inverted Edge Square Lock Nut Docking Clamp Plate Screw Cap Class 4.8 6.8","imgUrl":"https:\/\/img.chinax.com\/nimg\/de\/15\/b269cc0ef3f1a4dcf28769b84a69-200x200-1.jpg","attrs":{"Price":"$0.12-1\/pcs","Brand Name":"XC","Model Number":"M3-M20","Minimum Order Quantity":"500KG","Delivery Time":"30 days","Thread Size":"M4\/M5\/M6\/M8\/M10\/M12","Supply Ability":"Monthly Capacity: 500 tons","Payment Terms":"L\/C,D\/A,D\/P,T\/T","Application":"Machinery, Cabinet, Construction Fastening","Material":"Stainless Steel 304\/316","Packaging Details":"Export Carton & Pallet","Thread Type":"Coarse Thread \/ Fine Thread Optional","Place of Origin":"Zhejing,China","Head Style":"Inverted Edge Square Head","Locking Structure":"Square Anti-loose Lock Mechanism"}}

{"cid":"91214781","title":"DIN557 Stainless Steel Square Nut Square Nuts","imgUrl":"https:\/\/img.chinax.com\/nimg\/b3\/04\/154f69b7594b574560f088c90700-200x200-1.jpg","attrs":{"Price":"$0.01 - $2.00\/pieces","Brand Name":"Grace","Model Number":"customized","Minimum Order Quantity":"1000 pieces","Place of Origin":"Jiangsu, China","Packaging Details":"25Kg\/Carton,bulking,36Carton\/Pallet","Supply Ability":"5000 Ton\/Tons per Month","Finish":"Polished, Zinc,Nickel plated,Black oxide,HDG,Dacromet","Measurement system":"Metric","Application":"Heavy Industry, Water Treatment, Healthcare, Retail Industry, General Industry","Standard":"DIN","Appearance":"Bright neat body, without any burrs","color":"black,write or yellow","Raw Material":"Alloy steel wire rod","Heat Treatment":"Quench","Quality Control":"100% inspection during production","Port":"Shanghai or Ningbo"}}

{"cid":"91219668","title":"Hexagon Thin Nut M2 -M11 G4 \/ G6 Pipe Thread Nut Pipe Tooth Lighting Fine Tooth","imgUrl":"https:\/\/img.chinax.com\/nimg\/2c\/d0\/e9f8f462364f2f5336f0c82ad685-200x200-1.jpg","attrs":{"Price":"negotiation","Brand Name":"Feitai","Model Number":"customized","Minimum Order Quantity":"as per customer requirements or 1pc","Delivery Time":"4-7days,8-15days","Certification":"ISO9001,16949","Place of Origin":"China","Payment Terms":"T\/T,L\/C","Supply Ability":"200Ton\/Month","Packaging Details":"EPE, Blister box\uff0cfoam, Carton","Material":"Carbon Steel","Standard":"ANSI,DIN,ISO,GB","Package":"1000pcs\/box,Bulk Packing,","Place of Original":"Shenzhen,China"}}