70pcs 1/2-20 x 3 Grade5 HD HIGH CARBON+4 pcs Zinc Hex Head Cap Bolt Screw pd 15z

GENUINE United States Fastener

$189.95
SKU:
118531
UPC:
8598481864706
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Description

70pcs 1/2-20 x 3 Grade 5 HD HIGH CARBON + 4 pcs Zinc Hex Head Cap Bolt Screw


You get 70pcs 1/2-20 x 3 Grade 5 HD HIGH CARBON BLACK Hex Head Cap Machine Bolt Screws

PLUS YOU ALSO GET

4 pcs 1/2-20 x 3 Grade 5 YELLOW ZINC Hex Head Cap Machine Bolt Screws


High carbon is not the same as Black Oxide, it is a much higher upgrade:

No, high carbon steel and black oxide are not the same thing. High carbon steel is a type of steel with a high carbon content, giving it increased hardness and strength. Black oxide is a type of coating applied to metals, including steel, to provide a protective, decorative, or functional finish. 


Applications:

Properties:
Known for high strength, hardness, and wear resistance, but also more brittle than low or medium carbon steel.

High Carbon Steel:
  • Material:
    An alloy of iron and carbon, where the carbon content is typically between 0.60% and 1.5%