1,Certified to ISO9001:2008 2,Mild Steel, Carbon Steel. Alloy Steel 3,M4-M30 4,Finished plain/Zinc/Black 5,On-time delivery In-sail/Sandum is dedicated to manufacturing of precision components and the design, fabrication of engineering specialty fasteners and fastening solution development.Manufacturing CapabilityWe have powerful manufacturing capability, our automatic lathes, CNC lathes, CNC ...