M4x6mm Knurled Thumb Screws, 4pcs Flat Knurled Head Fully Threaded Brass Thumb Screws Bolts Grip Knobs Fasteners. M4x6mm Knurled Thumb Screws – Set of 4. Discover the perfect blend of style, strength, and convenience with our M4x6mm Knurled Thumb Screws.
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