large size black M16 U bolt(manufacturer) 1.Material:carbon steel ... etc 4.ISO90 Item:large size black M16 U bolt(manufacturer) Production Description:1MaterialLow-carbon steel,mid- ... etc5Grade8.8,9.8,10.9,12.96StandardDIN,ANSI/ASME,BS,GB,JIS,non-standard7SurfacePlain, zinc plated ... 30%deposit10Moq1000pcs11Deliveryabout 30days,depend on the total qualityAbout u and us:Accept your design and OEM, ...