RS PRO RS PRO Bright Zinc Plated Steel Round Head Self Tapping Screw, M4 x 0.236in Long 6mm Long Part: 264-6402

Six millimetre M4 round head self-tapping screw with bright zinc plating.

RS PRO RS PRO Pozidriv Round A2 304 Stainless Steel Machine Screw DIN 7985, M4x6mm Part: 264-6438

Stainless steel machine screw for general assembly and light mechanical applications.

Yahata Neji Yahata Neji, M4 Brass Thumb Screw, Nickel Plated Finish, 15mm Part: KS M4X15

Brass thumb screw with nickel plating for precision hand-tightening in machinery.

RS PRO RS PRO, M4 Nylon Thumb Screw, Plain Finish, 25mm Part: 232-6949

Nylon M4 thumb screw with knurled head for light-duty manual equipment adjustment.