gb t37 1988 t slot bolts

{"cid":"91194426","title":"GB\/T37-1988 Grade 8.8 Black Oxide T-Slot Bolts used to loosen the nut","imgUrl":"https:\/\/img.chinax.com\/nimg\/49\/42\/6913021dc27a6b01e7601ffc87a7-200x200-1.jpg","attrs":{"Price":"USD0.1-3\/PC","Brand Name":"FLRS or OEM","Model Number":"FLRS-CB07T","Minimum Order Quantity":"500pieces","Delivery Time":"Normally 8-30days","Certification":"ISO9001","Place of Origin":"China","Payment Terms":"T\/T\uff0c L\/C","Supply Ability":"10ton\/month","Packaging Details":"carton\/ plywood cases\/plywood pallets","Name":"T-Slot Bolts","Shape":"T shape","Material":"Carbon steel grade 8.8","Color":"Black","Surface treatment":"Black Oxide","Standard":"GB\/T37-1988","Size Range":"M5-M48","Thread length":"25-50mm to 140-300mm","Thread":"UNC","Customized":"Available"}}

{"cid":"91219668","title":"Iron Plated Black Zinc Slotted Round Head Screw , Pan Cross Head Screw Washer Combination","imgUrl":"https:\/\/img.chinax.com\/nimg\/e2\/db\/3ec3b79cbb4a83dfcb76b864c9af-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"}}