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1/2" Shoulder Diam x 2-1/2" Shoulder Length, 3/8-16 UNRC, Hex Socket Shoulder Screw - 75654251 - MSC Industrial Supply
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T8 Lead Screw Od 8 Mm Pitch 2mm Lead 2mm Flat Head Threaded Rivet Insert Nutsert Cap Rivet Brass Nut For 3d Printer - Bolts - AliExpress
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