M3 Socket Hex Head Cap Machine Screws Bolts+M3 Button Hex Head Cap Machine Screws Bolts
M3 Socket Hex Head Cap Machine Screws Bolts+M3 Button Hex Head Cap Machine Screws Bolts
Product Features
- Made of durable heat-treated, hardened 14.9 grade alloy steel, which have a improved tensile strength of 1.45~1.49GPa, their fatigue strength is 47.7% higher than that of grade lower. With the property of holding strong and lasting