ITEM NAME:180 pcs Alloy Steel M3 Hex Socket Button Head Round Heat Screw Assortmen Best Descriptio n Description: Model no. : sink-in hex Surface treatment: untreated Material grade: carbon steel 10.9 Thread specification: M3 Thread tolerance: 5g Application: electronic industry fasteners 180pcs M3*6/8/10/12 foreign trade 10.9 class high strength round head flat head hexagon socket screw flat pad combination set Round head with hexagon socket M3 * 6 to 15 M3 * 8 to 15 M3 * 10 to 15 M3 * 12 to 15 Crew cut with hexagon socket M3 * 6 to 15 M3 * 8 to 15 M3 * 10 to 15 M3 * 12 to 15 Flat mat 30 M3 The M4 30 Specifications:.180 pcs Alloy Steel M3 Hex Socket Button Head Round Heat Screw Assortmen Best in Industrial, Fasteners & Hardware, Screws & Bolts | shop2india