Type:Ss5, Ss8, Ss25, Ss36 Raw material:Q235, 35K, 45#, 40Mn2, 20MnSi Grade: 4.6, 5.6, 8.8 Surface:plain(oil),black,zinc,hdg double head screws in manufacturer in Foshan 1) Factory price 2) Excellent quality. 3) Product size:M3-M48 1/4"-3 4) OEMdouble head screws in manufacturer in Foshan1) Factory price2) Excellent quality.3) Product size:M3-M48 1/4"-3 4) Good after-sale service5) free sample... ...