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The ratchet buckle tightens incrementally for maximum tension
It is made of black plated and thus provide medium resistance to corrosion in both dry and wet environments
Alloy steel screws are mildly corrosion resistant in dry environments
Black-oxide steel screws are mildly corrosion resistant in dry environments
It is made of 304 stainless steel
Socket Head Cap Screw Black Oxyde Alloy Steel 1/2-13 * 13" Grade 8 [Cup Point] [Allen Drive] Quantity:Unity The ratchet buckle tightens incrementallyWith 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.
