2pcs M6x8mm~50mm Sus304 Stainless Steel Knurled Thumb Screws Gb834 Din464 High Step Head Hand Tighten Thumb Screw - Screws - AliExpress
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Key Drive Thumb Screw (6-Pack) – Mullet Tools
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Brass Screws, Brass Bolts
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4 pcs) M6-1.0 X 20mm, DIN 653, Metric, Thumb Screws, Knurled Flat Head, Low Type, Brass: : Industrial & Scientific
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