Rustark 450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive - 12.9 Class Black Alloy Steel Color:Black It is ideal for 208-277

It is ideal for 208-277 VAC light fixtures with ANSI C136

which is very convenient

and the copper plating bottom will greatly improve the corrosion resistance of the carbon steel surface

Made from high speed steel 6542 with titanium coating for high wear and heat resistant

Shank Diameter: 1 by 8-Inch

Rustark 450Pcs M3/M4/M5/M6/M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive - 12.9 Class Black Alloy Steel Color:Black It is ideal for 208-277Rustark 450Pcs M3 M4 M5 M6 M8 Allen Head Socket Hex Grub Screw Set Assortment Kit with Internal Hex Drive 12. 9 Class Black Alloy Steel Rustark 450Pcs M3 M4 M5 M6 M8 Allen Head Socket Hex Grub Screw Set Assortment Kit [Specifications]: 1. Color: Black 2. Material: 12. 9 Class Alloy Steel 3. Screw Sizes: M3 M4 M5 M6 M8 4. Quantity: 450pcs, come with durable transparent plastic box 5. Head Type: Hex Socket Screw [Why Choose Us]: Reliable After Sales