PrecisionGeek Shoulder Thumb Screws Blackened Steel DIN 464 Hand Grip (M3 x 8mm)

📏 DIMENSIONS: M3 thread, thread length 8 mm, knurled head diameter 12 mm, knurled head height 2.6 mm, shoulder diameter 6 mm. High form with shoulder in line with DIN 464. Metric thumb screws for mating parts with an M3 internal thread. 📦 PACK CONTENTS: 5 screws per set, enough for several fixtures, covers or machine guards. Other lengths and set sizes are available as variations. 🔩 S235 STEEL, CNC TURNED: Each screw is precision turned from S235 steel. Steel is much harder than aluminium and suits threads that are tightened and loosened often. ⬛ BLACK OXIDE FINISH: The blackened surface gives light protection and a matte black look. Intended for dry environments. In damp conditions we recommend a thin film of oil. 🎯 SHOULDER UNDER THE HEAD: The unthreaded shoulder of 6 mm diameter under the knurled head gives a defined seating and can locate in a matching hole. The mating part needs an M3 thread and a hole that fits the shoulder. 🖐️ TOOL FREE OPERATION: The knurled head with 12 mm diameter gives a secure grip for tightening and loosening by hand, with no screwdriver or spanner needed. 🛠️ APPLICATIONS: For fixtures, jigs, model making, fine mechanics, electronics enclosures and workshop projects where parts are fitted and removed often. Tighten by hand only and do not overtighten the small M3 thread. 🇪🇺 PRECISIONGEEK MADE IN THE EU: Designed and manufactured in Europe on our own CNC machines. Dimensional accuracy and thread quality are checked before dispatch. A brand specialising in precision turned and milled parts in steel, stainless steel, aluminium and brass.