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XINGYHENG 480Pcs 12 Values M2 M3 M4 Metric Hex Socket Cap Head Self Tapping Screw with Flat Gasket Washers Assortment Kit : Industrial & Scientific - Amazon.com
E-Z LOK - 303-5 E-Z Lok Externally Threaded Insert, 303 Stainless Steel, 5/16"-18 Internal Threads, 1/2"-13 External Threads, 0.484" Length, Made in US (Pack of 5): E Z Lock Threaded Insert: Amazon.com: Industrial & Scientific