Superior Quality: Those Slot Screwdriver Bits are made of S2 alloy steel
Thread Size: 8mmx100mm / 5/16"x4"
Features: The coil is made of resin film
strong and wear-resisting
wear and tear
M14-2x50mm Hex Serrated Flange Bolts 10.9 Grade Carbon Steel Screws 2pcs 15 X 15 X 1 X 200mm Superior Quality: Those Slot ScrewdriverDescription: 1. Material: Made of 10. 9 grade carbon steel, black oxide coating finish, high strength, wear resistant, anti corrosion. 2. Application: It is widely used in the assembly and maintenance of households, machine tools, construction, and DIY project. Such as the assembly and fixing of guardrails, home appliances, pipeline installations, equipment, steel framed houses, etc. 3. Design: There is a circular serrated flange under the head of the