12 Pack Premium Knurled Thumb Screws M4 By 12 Millimeter Stainless Steel Bolts Delivering Rock Solid Grip And Dead Simple Crank Adjustments For Shop Rigs And Diy Gear
✔️ M4 x 12mm bolts, 14mm knobs, 23mm tall, 12 pack black hardware
This 12 pack of M4 knurled thumb screws is built for quick manual adjustments on shop rigs, hobby builds, and production tooling. The marine grade 304 stainless steel rods laugh off humidity and coolants, while the dark thermoset knobs deliver steady traction when sliding vise jaws or locking guide rails. You skip the hassle of loose hardware when working alone, keeping your focus on cuts rather than fumbling with wrenches. The textured grip surface takes heat and solvents in stride, making them a no brainer for garages, maker spaces, and light fabrication shops.
✅ M4 metric thread with 0.7mm pitch for consistent fastening (approx.028")✅ 12mm shank length and 14mm knurled head diameter for easy turning (.47" shaft,.55" face)
✅ 23mm total height with heat treated 304 stainless steel construction (.91" tall)
✅ Includes 12 count of black capped bolts compatible with standard inserts
💡 Why install M4 knurled thumb screws instead of hex bolts for precision workbenches?
Quick release hardware beats standard nuts when you need to swap setups fast.
Premium stainless steel posts stay locked under vibration from saws and drill presses.
Rubberized knurl patterns stop hand fatigue during repetitive clamp tweaks.
Black thermoset caps slide smoothly into tapped holes without cross threading.