100Pcs M4 x 4mm Brass Knurled Nuts Female Thread Round Insert Embedded Injection Molding Nuts

Specification Material BrassColor GoldThread Diamter M4 4mm Outer Diameter 5 3mmHeight 4mmFeatures Made of high quality brass anti corrosion and anti rust durable to use Usually Applied to injection molding hardware springs battery leaf springs hardware stamping parts and so on No need to counter bore or countersink the boss hole because the insert has guide pilot Package Included 100 x M4 Knurled NutsMore Details