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Black-Oxide Alloy Steel Socket Head Screw 1/4-28 Thread Size 1-3/8 Long Partially Threaded, 10PK


product price: $19.19
/pk 10, $1.92/ea

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Product Information

Description

With a tensile strength of 170000 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. Fine and extra-fine threads are closely spaced to prevent loosening from vibration; the finer the thread the better the resistance. They are not compatible with coarse threads.

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