Grade 8.8 M20 Alloy Steel Socket Head Screws
With a tensile strength of 170,000 psi, these alloy steel screws are stronger than Grade 8 steel screws. Length is measured from under the head.Black-oxide steel screws are mildly corrosion resistant in dry environments.
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Name Socket Head Screws Material Alloy Steel Size M20 Finish Black-Oxide Strength Grade Grade 8.8
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