Socket Head Cap Screw Black Oxyde Alloy Steel 1/2-13 * 16" Grade 8 [Cup Point] [Allen Drive] eyenut It is made of yellow

It is made of yellow zinc plated and thus provide medium resistance to corrosion in dry environments and low resistance in wet environments

and flanges

316 Stainless Steel is also recommended for it's high corrosion resistance in salty environement

The screws have a thread of 5/8-11 and a length of 15

The 304 Stainless Steel increases its strength against the pressure and has a tensile strength and hardness of 75

Socket Head Cap Screw Black Oxyde Alloy Steel 1/2-13 * 16" Grade 8 [Cup Point] [Allen Drive] eyenut It is made of yellowWith a tensile strength of170, 000psi, these alloy steel screws are stronger than Grade 8 steelscrews. Length is measured from under the head. Black oxide steel screws are mildly corrosion resistant in dry environments. Coarse threads are the industrystandard: choose these screws if you dont know the pitch or threads per inch. Screws that meet ASTMA574, ASTMA574M, and ISO898 1comply with specifications and testing requirements for materialquality.