Edit this paragraph the type of folding wood screws, machine screws; but according to different uses can be divided into many categories; the machine screw type, can be divided into longitudinal and transverse expansion screw fastening screws; thread can also be divided according to: A: triangular thread (60 degrees): binding / lock / expansion B: Triangle Pipe thread (55 degrees): binding / lock 3) C: trapezoidal thread (30 or 29 degrees): Power D: square thread (90 degrees) : In the power transmission within Qingdao 304 stainless steel hexagonal screws hexagonal screws, stainless steel screws 304 304 hexagonal screws Tai'an, 316 stainless steel hexagonal screw 304 screws, stainless steel combination screws, stainless steel blind rivets, screws stainless steel flange screws 316 GB / T 3098.6- 2000 Mechanical properties of fasteners stainless steel bolts, screws and studs (idt ISO 3506-1: 1997) GB / T 3098.10-1993 Fasteners Bolts mechanical properties of non-ferrous metal manufacturing, screws, studs and nuts (eqv ISO 88 39 : 1986) GB / T 5267-1985 threaded fasteners 304 Zibo plating layer hexagonal screws, stainless steel screws, stainless steel 316 bolts, stainless steel 304 rivets ISO 10683: 2000 Fasteners electroless zinc coating layer [1] Texas 304 hex screws, socket head cap screws 304, 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!