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M8 x 1.25 x 20mm, Hole 4.2mm Socket Cap Head Hollow Through Hole Screw – Gavan Tools
Screw 2pcs M10 M12 Stainless Steel Hollow Screws Threading Wire Bolts hex Socket Cap Head Screw Through Hole Bolt 10mm-40mm Length - (Size: M10x16mm Hole 5mm) - Amazon.com