... ISO9001 member, RoHS approved, CE standard 3.OEM and ODM 4.Thickness:1.2mm, 1.4mm, ... in detail about this product:SNB8-4 for #8 screw, B8.7mm, L23mm, F6.0mm, E8 ... .7mm, E8.5mm, D7.2mm, d4.5mmSNB8-8 for 5/16 screw, B14.5mm, L28mm, F8.3mm, E8 ... F7.5mm, E10.5mm, D9.0mm, d5.8mmSNB14-8 for 5/16 screw, B14.0mm, L28mm, F7.5mm, E10 ... .5mm, D9.0mm, d5.8mmSNB22-8 for 5/16 screw, B14.0mm, L34.5mm, F9.0mm, ...