1220PCS M3 M4 M5 M6 Metric Screws Assortment Kit,Hex Socket Head Cap Bolts Nu…
And the average error is less than 0.01mm.
1260Pcs M2 Screw Assortment Kit, M2*4Mm/6Mm/8Mm/10Mm/12Mm/16Mm/20Mm 304 Stainles
And the average error is less than 0.01mm. Material Stainless Steel 304. Fastener Type Bolt. Weight: 6.7 oz. Color Silver-Hex Socket Head.