For your consideration a Set of 20 Low-Strength Steel Hex. Cap Screws 1/4" - 20 x 1-1/2" long. New without boxScrews are marked on the head with three radial lines to indicate Grade 2 and have a class 2A thread fit.Minimum tensile strength is 60,000 psi and minimum Rockwell hardness is B69.Screws meet ASME B18.2.1 and ASTM A307.Screws are zinc-plated - have a strong corrosion resistant.
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