The M10 Spring‑Loaded Index Plunger with Locking Pin combines a rugged blackened‑steel body with a high‑impact thermoplastic knob for reliable positioning in demanding applications.
Designed for precision indexing, the plunger features a built‑in steel spring that returns the pin to its rest position after each actuation. The recessed, flared knob gives your thumb and finger a comfortable grip, making it easy to pull and release the pin quickly and accurately. A blackened‑steel fixing nut secures the assembly while adding extra corrosion resistance.
Key benefits
– Heavy‑duty construction – blackened steel shaft and spring withstand harsh environments.
– Ergonomic control – matte‑finished thermoplastic knob reduces hand fatigue.
– Reliable lock – retractable locking pin holds firmly in place until you release it.
– Versatile use – ideal for locating, positioning, and indexing tasks across machinery, tooling, and automation systems.
Specifications
– Thread size: M10 × 1.0
– Knob material: High‑impact resistant thermoplastic (matte finish)
– Body material: Blackened steel
– Spring type: Steel with built‑in rest position
– Color: Black knob with blackened steel components
Whether you’re assembling equipment or fine‑tuning a prototype, this M10 index plunger delivers consistent performance and long‑lasting durability—exactly what engineers and technicians need for precise motion control.





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