Manual Indexing Plungers: Lever, T-Handle and Round-Knob Options
These threaded positioning components retract a locating pin to release a mating part, then extend the pin to engage a matching hole or stop. Choose the exact thread, pin diameter, projection and operating function for the fixture. Lever, T-handle and round-knob families are separate selectable products, not a mixed kit.
Operating functions
- XNSR and XNSRA are black-oxide carbon-steel lever-operated versions with an ON/OFF action. Their original diagrams show a 150-degree lever arc; XNSR uses the listed coarse threads, while XNSRA uses fine threads.
- Spring-return models retract while the handle is pulled and return when released. Red T-handle families: XNTZ carbon steel and XSTZ stainless steel. Black T-handle families: XNHF carbon steel and XSHF stainless steel. Round-knob families: T435F carbon steel and T435FS stainless steel.
- Lock-out models can retain the pin in the retracted position using the handle/knob rotation shown on the original drawing. Red T-handle families: XNPZ carbon steel and XSPZ stainless steel. Black T-handle families: XNHZ carbon steel and XSHZ stainless steel. Round-knob families: T435Z carbon steel and T435ZS stainless steel. Select spring return when automatic re-engagement is required.
Materials and finish
T-handle and round-knob models use PA/polyamide handles. The carbon-steel versions have a black-oxide body and hardened pin; stainless versions have a stainless body and nickel-plated stainless pin according to the supplied material sheets. No specific stainless grade, rated load, corrosion test or operating temperature is supplied for this range.
Dimensions and selection
The option name identifies family, metric thread diameter and pitch, then pin diameter x projecting pin length in millimeters for T-handle/round-knob versions. Approximate inches are added for the pin dimensions; the thread remains metric. Lever models are selected by family and thread, with the original S travel shown on the model sheet. All other original drawing dimensions and tolerances remain visible. A similar outside diameter does not make different pitches interchangeable.
Use in a fixture
Typical uses include adjustable stops, indexing positions and changeover fixtures with a mating locating hole. Align the pin with the hole, provide suitable clearance and engagement, and ensure that the receiving part carries the intended load. Retract the pin before adjusting the fixture. The source includes product photographs and mechanism drawings; its machine-shop photographs depict manufacturing equipment, not a verified installed application, so they are not presented as application evidence.
Package and installation
Each option supplies one indexing plunger. Product photographs may show multiple separate units and loose nuts to illustrate configurations; they do not describe a multi-piece assortment. A separate M6 nut option is not offered here because its package quantity is unspecified. Use the original selected-model drawing to check the supplied locknut arrangement, mounting depth, thread pitch and pin projection before ordering. Do not use a positioning pin as a lifting device or infer a load rating from its size.
Original photographs and model drawings
Every offered option has its own source photograph/dimension drawing in the model gallery. Representative first and last sizes from each family are also included below, together with the original range and close-up photos.

































Available models, dimensions and prices
| Model | Thread | Pin dia. x projection (mm) | Material | Action | USD |
|---|
| XNSR | M12 x 1.75 | S travel 5 | Black-oxide carbon steel | Lever-operated ON / OFF | $83.16 |
| XNSR | M16 x 2.0 | S travel 8 | Black-oxide carbon steel | Lever-operated ON / OFF | $101.75 |
| XNSR | M20 x 2.5 | S travel 10 | Black-oxide carbon steel | Lever-operated ON / OFF | $120.12 |
| XNSRA | M12 x 1.5 | S travel 5 | Black-oxide carbon steel | Lever-operated ON / OFF | $84.15 |
| XNSRA | M16 x 1.5 | S travel 8 | Black-oxide carbon steel | Lever-operated ON / OFF | $101.75 |
| XNSRA | M20 x 1.5 | S travel 10 | Black-oxide carbon steel | Lever-operated ON / OFF | $120.12 |
| XNTZ | M10 x 1 | 5 x 5 | Black-oxide carbon steel | Spring return | $20.35 |
| XNTZ | M10 x 1 | 5 x 8 | Black-oxide carbon steel | Spring return | $20.35 |
| XNTZ | M12 x 1.5 | 6 x 6 | Black-oxide carbon steel | Spring return | $23.10 |
| XNTZ | M12 x 1.5 | 6 x 9 | Black-oxide carbon steel | Spring return | $23.10 |
| XNTZ | M16 x 1.5 | 8 x 8 | Black-oxide carbon steel | Spring return | $27.50 |
| XNTZ | M16 x 1.5 | 8 x 12 | Black-oxide carbon steel | Spring return | $27.50 |
| XNTZ | M16 x 1.5 | 10 x 12 | Black-oxide carbon steel | Spring return | $27.50 |
| XNTZ | M20 x 1.5 | 10 x 12 | Black-oxide carbon steel | Spring return | $34.10 |
| XNTZ | M20 x 1.5 | 12 x 15 | Black-oxide carbon steel | Spring return | $34.10 |
| XNTZ | M24 x 2 | 16 x 20 | Black-oxide carbon steel | Spring return | $51.70 |
| XNPZ | M10 x 1 | 5 x 5 | Black-oxide carbon steel | Lock-out / stays retracted | $22.00 |
| XNPZ | M10 x 1 | 5 x 8 | Black-oxide carbon steel | Lock-out / stays retracted | $22.00 |
| XNPZ | M12 x 1.5 | 6 x 6 | Black-oxide carbon steel | Lock-out / stays retracted | $27.50 |
| XNPZ | M12 x 1.5 | 6 x 9 | Black-oxide carbon steel | Lock-out / stays retracted | $27.50 |
| XNPZ | M16 x 1.5 | 8 x 8 | Black-oxide carbon steel | Lock-out / stays retracted | $29.70 |
| XNPZ | M16 x 1.5 | 8 x 12 | Black-oxide carbon steel | Lock-out / stays retracted | $29.70 |
| XNPZ | M16 x 1.5 | 10 x 12 | Black-oxide carbon steel | Lock-out / stays retracted | $29.70 |
| XNPZ | M20 x 1.5 | 10 x 12 | Black-oxide carbon steel | Lock-out / stays retracted | $40.70 |
| XNPZ | M20 x 1.5 | 12 x 15 | Black-oxide carbon steel | Lock-out / stays retracted | $40.70 |
| XNPZ | M24 x 2 | 16 x 20 | Black-oxide carbon steel | Lock-out / stays retracted | $56.10 |
| XSTZ | M10 x 1 | 5 x 5 | Stainless steel | Spring return | $23.10 |
| XSTZ | M10 x 1 | 5 x 8 | Stainless steel | Spring return | $23.10 |
| XSTZ | M12 x 1.5 | 6 x 6 | Stainless steel | Spring return | $24.20 |
| XSTZ | M12 x 1.5 | 6 x 9 | Stainless steel | Spring return | $24.20 |
| XSTZ | M16 x 1.5 | 8 x 8 | Stainless steel | Spring return | $28.60 |
| XSTZ | M16 x 1.5 | 8 x 12 | Stainless steel | Spring return | $28.60 |
| XSTZ | M16 x 1.5 | 10 x 12 | Stainless steel | Spring return | $28.60 |
| XSTZ | M20 x 1.5 | 10 x 12 | Stainless steel | Spring return | $36.30 |
| XSTZ | M20 x 1.5 | 12 x 15 | Stainless steel | Spring return | $36.30 |
| XSTZ | M24 x 2 | 16 x 20 | Stainless steel | Spring return | $73.70 |
| XSPZ | M10 x 1 | 5 x 5 | Stainless steel | Lock-out / stays retracted | $27.50 |
| XSPZ | M10 x 1 | 5 x 8 | Stainless steel | Lock-out / stays retracted | $27.50 |
| XSPZ | M12 x 1.5 | 6 x 6 | Stainless steel | Lock-out / stays retracted | $29.70 |
| XSPZ | M12 x 1.5 | 6 x 9 | Stainless steel | Lock-out / stays retracted | $29.70 |
| XSPZ | M16 x 1.5 | 8 x 8 | Stainless steel | Lock-out / stays retracted | $35.20 |
| XSPZ | M16 x 1.5 | 8 x 12 | Stainless steel | Lock-out / stays retracted | $35.20 |
| XSPZ | M16 x 1.5 | 10 x 12 | Stainless steel | Lock-out / stays retracted | $35.20 |
| XSPZ | M20 x 1.5 | 10 x 12 | Stainless steel | Lock-out / stays retracted | $60.50 |
| XSPZ | M20 x 1.5 | 12 x 15 | Stainless steel | Lock-out / stays retracted | $60.50 |
| XSPZ | M24 x 2 | 16 x 20 | Stainless steel | Lock-out / stays retracted | $68.20 |
| XNHF | M10 x 1 | 5 x 5 | Black-oxide carbon steel | Spring return | $20.35 |
| XNHF | M10 x 1 | 5 x 8 | Black-oxide carbon steel | Spring return | $20.35 |
| XNHF | M12 x 1.5 | 6 x 6 | Black-oxide carbon steel | Spring return | $23.10 |
| XNHF | M12 x 1.5 | 6 x 9 | Black-oxide carbon steel | Spring return | $23.10 |
| XNHF | M16 x 1.5 | 8 x 8 | Black-oxide carbon steel | Spring return | $27.50 |
| XNHF | M16 x 1.5 | 8 x 12 | Black-oxide carbon steel | Spring return | $27.50 |
| XNHF | M16 x 1.5 | 10 x 12 | Black-oxide carbon steel | Spring return | $27.50 |
| XNHF | M20 x 1.5 | 10 x 12 | Black-oxide carbon steel | Spring return | $34.10 |
| XNHF | M20 x 1.5 | 12 x 15 | Black-oxide carbon steel | Spring return | $34.10 |
| XNHF | M24 x 2 | 16 x 20 | Black-oxide carbon steel | Spring return | $51.70 |
| XNHZ | M10 x 1 | 5 x 5 | Black-oxide carbon steel | Lock-out / stays retracted | $22.00 |
| XNHZ | M10 x 1 | 5 x 8 | Black-oxide carbon steel | Lock-out / stays retracted | $22.00 |
| XNHZ | M12 x 1.5 | 6 x 6 | Black-oxide carbon steel | Lock-out / stays retracted | $27.50 |
| XNHZ | M12 x 1.5 | 6 x 9 | Black-oxide carbon steel | Lock-out / stays retracted | $27.50 |
| XNHZ | M16 x 1.5 | 8 x 8 | Black-oxide carbon steel | Lock-out / stays retracted | $29.70 |
| XNHZ | M16 x 1.5 | 8 x 12 | Black-oxide carbon steel | Lock-out / stays retracted | $29.70 |
| XNHZ | M16 x 1.5 | 10 x 12 | Black-oxide carbon steel | Lock-out / stays retracted | $29.70 |
| XNHZ | M20 x 1.5 | 10 x 12 | Black-oxide carbon steel | Lock-out / stays retracted | $40.70 |
| XNHZ | M20 x 1.5 | 12 x 15 | Black-oxide carbon steel | Lock-out / stays retracted | $40.70 |
| XNHZ | M24 x 2 | 16 x 20 | Black-oxide carbon steel | Lock-out / stays retracted | $56.10 |
| XSHF | M10 x 1 | 5 x 5 | Stainless steel | Spring return | $23.10 |
| XSHF | M10 x 1 | 5 x 8 | Stainless steel | Spring return | $23.10 |
| XSHF | M12 x 1.5 | 6 x 6 | Stainless steel | Spring return | $24.20 |
| XSHF | M12 x 1.5 | 6 x 9 | Stainless steel | Spring return | $24.20 |
| XSHF | M16 x 1.5 | 8 x 8 | Stainless steel | Spring return | $28.60 |
| XSHF | M16 x 1.5 | 8 x 12 | Stainless steel | Spring return | $28.60 |
| XSHF | M16 x 1.5 | 10 x 12 | Stainless steel | Spring return | $28.60 |
| XSHF | M20 x 1.5 | 10 x 12 | Stainless steel | Spring return | $36.30 |
| XSHF | M20 x 1.5 | 12 x 15 | Stainless steel | Spring return | $36.30 |
| XSHF | M24 x 2 | 16 x 20 | Stainless steel | Spring return | $73.70 |
| XSHZ | M10 x 1 | 5 x 5 | Stainless steel | Lock-out / stays retracted | $27.50 |
| XSHZ | M10 x 1 | 5 x 8 | Stainless steel | Lock-out / stays retracted | $27.50 |
| XSHZ | M12 x 1.5 | 6 x 6 | Stainless steel | Lock-out / stays retracted | $29.70 |
| XSHZ | M12 x 1.5 | 6 x 9 | Stainless steel | Lock-out / stays retracted | $29.70 |
| XSHZ | M16 x 1.5 | 8 x 8 | Stainless steel | Lock-out / stays retracted | $35.20 |
| XSHZ | M16 x 1.5 | 8 x 12 | Stainless steel | Lock-out / stays retracted | $35.20 |
| XSHZ | M16 x 1.5 | 10 x 12 | Stainless steel | Lock-out / stays retracted | $35.20 |
| XSHZ | M20 x 1.5 | 10 x 12 | Stainless steel | Lock-out / stays retracted | $60.50 |
| XSHZ | M20 x 1.5 | 12 x 15 | Stainless steel | Lock-out / stays retracted | $60.50 |
| XSHZ | M24 x 2 | 16 x 20 | Stainless steel | Lock-out / stays retracted | $68.20 |
| T435Z | M8 x 1 | 4 x 4 | Black-oxide carbon steel | Lock-out / stays retracted | $19.36 |
| T435Z | M8 x 1 | 4 x 6 | Black-oxide carbon steel | Lock-out / stays retracted | $19.36 |
| T435Z | M10 x 1 | 5 x 5 | Black-oxide carbon steel | Lock-out / stays retracted | $24.75 |
| T435Z | M10 x 1 | 5 x 8 | Black-oxide carbon steel | Lock-out / stays retracted | $24.75 |
| T435Z | M12 x 1.5 | 6 x 6 | Black-oxide carbon steel | Lock-out / stays retracted | $27.72 |
| T435Z | M12 x 1.5 | 6 x 9 | Black-oxide carbon steel | Lock-out / stays retracted | $27.72 |
| T435Z | M16 x 1.5 | 8 x 8 | Black-oxide carbon steel | Lock-out / stays retracted | $31.35 |
| T435Z | M16 x 1.5 | 8 x 12 | Black-oxide carbon steel | Lock-out / stays retracted | $31.35 |
| T435Z | M16 x 1.5 | 10 x 12 | Black-oxide carbon steel | Lock-out / stays retracted | $31.35 |
| T435Z | M20 x 1.5 | 12 x 15 | Black-oxide carbon steel | Lock-out / stays retracted | $40.59 |
| T435Z | M24 x 2 | 16 x 20 | Black-oxide carbon steel | Lock-out / stays retracted | $53.68 |
| T435ZS | M8 x 1 | 4 x 4 | Stainless steel | Lock-out / stays retracted | $20.13 |
| T435ZS | M8 x 1 | 4 x 6 | Stainless steel | Lock-out / stays retracted | $20.13 |
| T435ZS | M10 x 1 | 5 x 5 | Stainless steel | Lock-out / stays retracted | $21.23 |
| T435ZS | M10 x 1 | 5 x 8 | Stainless steel | Lock-out / stays retracted | $21.23 |
| T435ZS | M12 x 1.5 | 6 x 6 | Stainless steel | Lock-out / stays retracted | $26.29 |
| T435ZS | M12 x 1.5 | 6 x 9 | Stainless steel | Lock-out / stays retracted | $26.29 |
| T435ZS | M16 x 1.5 | 8 x 8 | Stainless steel | Lock-out / stays retracted | $29.59 |
| T435ZS | M16 x 1.5 | 8 x 12 | Stainless steel | Lock-out / stays retracted | $29.59 |
| T435ZS | M16 x 1.5 | 10 x 12 | Stainless steel | Lock-out / stays retracted | $29.59 |
| T435ZS | M20 x 1.5 | 12 x 15 | Stainless steel | Lock-out / stays retracted | $51.15 |
| T435ZS | M24 x 2 | 16 x 20 | Stainless steel | Lock-out / stays retracted | $56.32 |
| T435F | M8 x 1 | 4 x 4 | Black-oxide carbon steel | Spring return | $13.86 |
| T435F | M8 x 1 | 4 x 6 | Black-oxide carbon steel | Spring return | $13.86 |
| T435F | M10 x 1 | 5 x 5 | Black-oxide carbon steel | Spring return | $17.05 |
| T435F | M10 x 1 | 5 x 8 | Black-oxide carbon steel | Spring return | $17.05 |
| T435F | M12 x 1.5 | 6 x 6 | Black-oxide carbon steel | Spring return | $19.36 |
| T435F | M12 x 1.5 | 6 x 9 | Black-oxide carbon steel | Spring return | $19.36 |
| T435F | M16 x 1.5 | 8 x 8 | Black-oxide carbon steel | Spring return | $22.64 |
| T435F | M16 x 1.5 | 8 x 12 | Black-oxide carbon steel | Spring return | $23.72 |
| T435F | M16 x 1.5 | 10 x 12 | Black-oxide carbon steel | Spring return | $24.75 |
| T435F | M20 x 1.5 | 12 x 15 | Black-oxide carbon steel | Spring return | $30.03 |
| T435F | M24 x 2 | 16 x 20 | Black-oxide carbon steel | Spring return | $45.76 |
| T435FS | M8 x 1 | 4 x 4 | Stainless steel | Spring return | $16.17 |
| T435FS | M8 x 1 | 4 x 6 | Stainless steel | Spring return | $16.17 |
| T435FS | M10 x 1 | 5 x 5 | Stainless steel | Spring return | $18.59 |
| T435FS | M10 x 1 | 5 x 8 | Stainless steel | Spring return | $18.59 |
| T435FS | M12 x 1.5 | 6 x 6 | Stainless steel | Spring return | $20.48 |
| T435FS | M12 x 1.5 | 6 x 9 | Stainless steel | Spring return | $20.48 |
| T435FS | M16 x 1.5 | 8 x 8 | Stainless steel | Spring return | $23.72 |
| T435FS | M16 x 1.5 | 8 x 12 | Stainless steel | Spring return | $24.75 |
| T435FS | M16 x 1.5 | 10 x 12 | Stainless steel | Spring return | $25.87 |
| T435FS | M20 x 1.5 | 12 x 15 | Stainless steel | Spring return | $36.63 |
| T435FS | M24 x 2 | 16 x 20 | Stainless steel | Spring return | $51.15 |