Heavy Duty Carbon Steel Ball Point Set Screws With Hex Socket Spring Plunger Mechanism Used For Industrial Machines And Furniture Repairs Ships As Ten Black Grub Bolts Providing Bulletproof Grip And Zero Hassle Installation For Any Garage Hobbyist

Heavy Duty Carbon Steel Spring Plunger Set Screws Set
✔️ M8 x 12 mm screws measure 0.54 in long and hold tight

You grab ten solid grub bolts ready to clamp down wherever they sit right out of the box. They feature a coiled spring and ball nose that bite into material without chewing up threads. You toss them into workshop jigs, home fixture kits, or pipe repairs and tighten them with a basic hex tool. The compact shape stays hidden underneath panels so your gear looks clean.

✅ Thread size M8 x 12 mm measures 0.54 in total length ✅ Hex socket width 4 mm fits 0.16 in driver slots ✅ Spring ball diameter 5 mm delivers 12 to 50 N pull strength ✅ Black oxidation coating blocks rust and corrosion buildup ✅ Smooth grooves and deep cuts allow fast seating in fixtures

💡 What helps secure loose hardware during heavy machinery adjustments? This handy setup works great because the internal spring compensates for slight gaps in your materials. - Spring loaded plunger mechanism applies steady tension to stop vibrating bolts from backing out - Heat treated carbon steel body withstands shop floor abuse while resisting everyday corrosion - Precision machined hex sockets accept standard Allen keys for quick torque without stripping - Small footprint mounts flush inside equipment racks to leave room for normal movement

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