10X M4 Rotating Thumb Screw Knob fr 15mm Rod Clamp Rail Block DSLR Rig Support

Good news for DSLR RIG DIYers, Most of DIYers buy parts / accessaries from different sellers, even make it themselves, Different screw knobs / nuts were used, Red, blue, black .... Make your rigs more professional, with the well-made M4, M5, M6 screw knobs. Unify your setup with same color screw knobs. Now, V3 rotating thumb screw knobs are available! Made of stainless steel and aluminium. Nice Chamfer, glass bead blasting and anodized blue finishing