Favordrory M4 x 0.7mm 304 Stainless Steel Self-Lock Nylon Inserted Hex Lock Nuts, Self Clinching Nuts, 100 PCS

Size: Hole diameter: 4mm/ 0.16″, Pitch: 0.7mm | Material: Made of 304 Stainless Steel and nylon insert, fine workmanship, greatly enhancing the function of release and shockproof | Function: The Lock Nuts ensure a secure hold (reducing slippage) and a lasting hold for any project | Applications: Mainly suitable for machinery, electric appliance, electronic/computer, automobile, sports equipment etc, total 100PCS, sufficient number to meet your needs