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1/2-20 Jam Screws, Hollow Lock Screws

Hex socket jam screws, sometimes called hollow lock screws, are used to tighten springs into tapped holes. The hex socket extends the length of the inside of the screw and allows for inspection of the locked part.

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Buy Jam Screws, Hollow Lock Screws from one of our FCH Network Members
SupplierLocTypeMaterialFinishSizeDescriptionQty 
Set ScrewILSocket Jam Screw (Hollow Lock Screw)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1/41/2-20 x 1/4 18-8 stainless steel hex socket jam screw per print r99-14inquire
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Setko FasILSocket Jam Screw (Hollow Lock Screw)300 Stainless (A1,A2, 18-8,304,310 etc.)Plain1/2-20 x 1/41/2-20x1/4 stainless steel hex socket jam screw dfars384
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Setko FasILSocket Jam Screw (Hollow Lock Screw)SteelPlain1/2-20 x 1/41/2-20x1/4 alloy hex socket jam screw dfars2027
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DeltaTXSocket Jam Screw (Hollow Lock Screw)SteelPlain1/2-20soc jam screw alloy nf 1/2-2047
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