M2 M2.5 M3 M4 M5 M6 M8-M30 Black Carbon Steel Grade 8 High Strength Hexagon Hex Nut High Strength Screw Cap Hex Nut Hexagon Nut

High-concerned chemical : None Model Number : M2~M30 DIY Supplies : Electrical Material : Carbon Steel Origin : Mainland China

Product Description

Model:Hexagonal nuts

Material: Carbon steel

Strength: Grade 8

Surface treatment: Blackening

Specification: D Such as: M4 (thread inner diameter 4mm match M4 screws) inner diameter need professional tools to measure If you need other sizes, please contact the seller

For bulk purchases please contact the seller for a final quote