SJ 2511-1984 fastener grommet SJ 2512-1984 fastener insulation small washer SJ 2823-1987 television receivers fastener Cross recessed oval head tapping screw fasteners SJ 2824-1987 television receivers Cross Trench spherical head tapping screw fastener SJ 2825-1987 television receivers cross recessed large spherical flange tapping screw fastener SJ 2826-1987 television receivers Cross recessed hexagon head tapping screw SJ 2827-1987 TV The receiver tube bracket bolts fastening SJ 2828-1987 television receivers fastener Cross recessed pan head screws SJ 2829-1987 television receiver Fasteners large spherical head screws cross recessed stainless steel screws, stainless steel nuts Liaocheng stainless steel self-tapping screws, 316 stainless steel rivet nut, cotter pin Jining 304 stainless steel self-tapping screws, a combination of 304 stainless steel cross pan head screws. Yantai stainless steel electronic screws self-tapping screws, stainless steel flange nuts, stainless steel flat head screws stainless steel screw fasteners also known as self-tapping screws, not the same name and himself, but the inner meaning is the same. When each of the fasteners to the two or more parts (or components) fastening become a whole adopted a kind of mechanical parts in general. Fastener product standards should involve some aspects of content. 1, fastener product dimensions Standards: specify the content of the basic dimensions of the product; threaded products, including basic thread size, thread ending, shoulder distance, the end of the undercuts and chamfers, outer threaded part size and other aspects. 2, the fastener product technology standard conditions. Including content production tolerances, mechanical properties, surface defects, surface treatment, product testing standard terms and the corresponding specified areas. 321 stainless steel bolts, 316 stainless steel flat pad, 316 stainless steel expansion bolt 304 stainless steel locking screw Yantai stainless steel self-tapping screws, stainless steel self-tapping screws, Jinan Road ground is provided by Jinan Daoqin Trading Company. Jinan Daoqin Trading Company (www.daoqinshangmao.com) (www.daoqinshangmao.com) strong, credible, in Jinan, Shandong hardware accessories industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Jinan Road ground into the brilliant and you work for a better future!