... M6-M100(1/4-4inch) Features: 1.Flat washer and Spring washer Monel 400 K500 2.Standard: GB, ... , 436, 440, 7349, 7989, 9021),BA,NFE,JIS,and according to customers' requirements.3.MaterialCarbon steel,45#,65Mn,stainless ... agricultural machinery,construction,transportation,electric power,electronics,chenicals,home appliances,militaryinductry and other 9.Packing Boxes-->cartons-->pallets;Cartons-->pallets ...