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Promaster Small Thread Adapter 3/8 Inch-16 Female to 1/4 Inch-20 Male Converts a 3/8"-16 male screw/post to a smaller 1/4"-20 male. This adapter is made of brass and has a knurled finish surrounding it for an easy, comfortable grip.
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🇺🇸 Ship from USA · On Agora since 2025
$6.99