Grade 12.9 M4 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.

分类： Socket Head Screws

Description
Product Inquiry

Name Socket Head Screws

Material Alloy Steel

Size M4

Finish Black-Oxide

Strength Grade Grade12.9

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