Commonly used socket head cap Screws are: cylindrical head hexagon socket (also known as cup head), pan head hexagon socket screws (also known as round cup, half round head hexagon socket), countersunk head hexagon socket screws (also known as flat head hexagon socket, flat cup), flower hexagon socket (also known as plum slot hexagon socket) Slotted Cheese Head Screw ,Slotted Head Screw ,Slotted Pan Head Screw ,Round Head Wood Screw Kunshan Zhonggu Precision Hardware Co., Ltd. , https://www.zgfastener.com
1. Application: Hexagon socket screws, hexagon socket screws are a kind of hole screws, generally used in machine tools and equipment, chemical equipment, water pumps, ships, power equipment, electronics, electrical appliances, furniture and other fields, mainly to facilitate fastening, disassembly, not easy to slip the corner and other advantages. Hexagon socket screws need to use the corresponding specifications of the hexagon wrench to load and unload.
2. Reference standard.
Cylindrical head hexagon socket: GB70, DIN912, ISO4762, ANSI/ASME B18.3
Hexagon socket with pan head: ISO7380
Countersunk hexagonal head: DIN7991
Hexagon socket with flower-shaped pan head: flower-shaped pan head (GB2672), flower-shaped cylindrical head (GB6190), flower-shaped countersunk head (GB2673)
Purchase mahogany furniture to provoke disputes through mediation merchants full refund
Consumers are booking dimpled Dalbergia furniture, but merchants are using Hedgehog rosewood furniture to fool consumers. Recently, the Consumer Rights Protection Committee of Xiangcheng District, Suzhou City, Jiangsu Province, mediates such a furniture consumption dispute, and consumers receive a full refund. . A few days ago, Mr. Zhang saw a set of 23,600 yuan of mahogany furniture in a furniture store in Xiangcheng District, Suzhou. The salesperson said that the furniture material is dimple Dalbergia. Mr. Zhang ordered a set, paid the full amount on the same day and signed a sales contract, stipulated the delivery time. The next day, when Mr. Zhang went to Other stores to see the mahogany furniture made of dimpled Dalbergia, he found that the color and texture of the dimpled Dalbergia furniture was different, and the price was very different. Mr. Zhang suddenly questioned, and went to the sales department to ask the merchant to indicate on the contract: "The furniture material is dimpled Dalbergia, and the promise is a penalty of five." The merchant only agrees to indicate the "national standard mahogany". Under Mr. Zhang’s repeated questioning, the merchants said the truth. The material of the mahogany furniture ordered by Mr. Zhang was actually the hedgehog rosewood, and the price was several times lower than the dimpled Dalbergia. Mr. Zhang was very angry and asked the merchant to ship the mahogany material in accordance with the contract. The merchant did not agree, saying that the salesperson introduced the product and mistakenly introduced the hedgehog rosewood into a dimple Dalbergia. He only agreed to ship the 23,600 yuan of Hedgehog rosewood mahogany furniture to Mr. Zhang. Mr. Zhang complained to the Consumer Protection Committee. After accepting the complaint, Xiangcheng District Consumer Protection Committee will immediately check the situation with the merchant. The staff of the Consumer Protection Committee believes that the fault of this matter is the merchant. After several coordinations, the merchant finally returned the full amount of the 23,600 yuan to the consumer.