Knurled Hand-Tightening Adjustment Knob Screw M3M4

This adjustable knob is designed for easy hand-tightening and features a knurled surface for a secure grip. It is compatible with M3 and M4 screws, offering versatile applications across various projects that require precise adjustments without the need for tools. The robust construction ensures durability and reliable performance, making it an ideal choice for both DIY enthusiasts and professionals seeking efficiency and convenience in their work. Head shape: Cylindrical head Surface treatment: Stainless steel linear pattern Material Grade: Carbon Steel Product Grade: 4.8 Standard No.: DIN 316-1983 Nail Type: Screws Manufacture country: China Instructions included: No