Locking pull pins with Clamping Knob|One-Handed Operation × Pause & Lock × Precision Adjustment | Maximize Precision with Top-Quality Hand Screws for Industrial Use

Locking pull pin is available in various sizes | High-quality hand screws for industrial machinery | UJEN

Locking pull pin is available in various sizes

Lock-out Pull Pins with Clamping Knob

Locking pull pins with Clamping Knob|One-Handed Operation × Pause & Lock × Precision Adjustment

Lock-out pull pins with clamping knob allow the pin to remain retracted for hands-free adjustment, then re-engage for accurate positioning with added clamping stability in precision equipment.


UJEN supplies lock-out pull pins with clamping knob for modular equipment and precision assemblies, supporting hands-free adjustment, reliable positioning, and OEM/ODM customization through Taiwan-based manufacturing.

Core Function: Lock-Out Positioning with Hands-Free Adjustment

The lock-out pull pin with clamping knob features a built-in hold mechanism that keeps the pin in the retracted position after pulling and rotating the knob. This allows operators to use both hands for precise alignment, part replacement, or mold changes without repeatedly pulling the pin.

Once adjustment is complete, the pin can be re-engaged by rotating the knob back, restoring accurate and repeatable positioning.

Improved Lock-Out Operation Design

In the updated design, the pin can be reinserted directly by rotating the knob, eliminating the need to pull and rotate again. This improvement simplifies operation, reduces adjustment steps, and minimizes user error during high-frequency use.

Compared to earlier designs that required repeated pull-and-rotate actions, the new mechanism provides smoother and more intuitive operation.

Integrated Clamping for Added Stability

In addition to the lock-out function, the clamping knob allows manual tightening after positioning. This added holding force helps secure components against vibration and dynamic loads, improving overall system stability without additional fasteners.

Key Features

  • Lock-out mechanism holds the pin in the retracted position
  • Direct rotation to re-engage the pin without pulling again
  • One-hand operation for faster and safer adjustment
  • Manual clamping function for enhanced stability
  • Designed for frequent use and foolproof operation
  • ROHS compliant for global environmental requirements

Typical Applications

  • Equipment requiring frequent repositioning or mold changes
  • Automated modules and guide tracks with precision alignment needs
  • Medical, laboratory, and inspection equipment
  • Modular assembly lines with high-frequency adjustments
  • Safety-critical environments demanding reliable positioning

OEM / ODM Customization Support

UJEN provides OEM and ODM support for lock-out pull pins with clamping knob, including customization of pin diameter, stroke length, lock-out angle, clamping force, and knob design. Our engineering team works closely with customers to ensure safe, reliable performance in precision and safety-critical applications.

When pull pin specifications vary in thread size, plunger diameter, external dimensions, materials, and surface finishing, manual browsing may take time. For faster selection, use Advanced Search below or the shortcut at the top right to filter by dimensions, materials, and functional requirements.

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Lock-out Pull Pins with Clamping Knob

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Result 13 - 24 of 90
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M8 x 1.0 x 26mm, D21, pin4 - Lock mini pull pin M8xP1.0x26mm PIN4mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M8 x 1.0 x 26mm, D21, pin4
PSK300F-2108260406

A miniature plunger with partial retraction lock for easy in-process modifications. If you want...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M8 x 1.0 x 26mm, D21, pin5 - Lock mini pull pin M8xP1.0x26mm PIN5mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M8 x 1.0 x 26mm, D21, pin5
PSK300F-2108260506

Stay-pull functionality helps simplify frequent or repetitive realignments. For extremely tight...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M8 x 1.0 x 26mm, D21, pin6 - Lock mini pull pin M8xP1.0x26mm PIN6mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M8 x 1.0 x 26mm, D21, pin6
PSK300F-2108260606

Dwell-slot design keeps the pin retracted while assembling other parts. If your small machinery...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 8mm, D25, pin5 - Lock mini pull pin M10xP1.0x8mm PIN5mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 8mm, D25, pin5
PSK300F-2510080507

Ideal for small machinery requiring quick, occasional stops in the plunger’s travel. Once...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 8mm, D25, pin6 - Lock mini pull pin M10xP1.0x8mm PIN6mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 8mm, D25, pin6
PSK300F-2510080607

Offers an integrated rest position, perfect for short-handed or single-operator tasks. If your...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 8mm, D25, pin7 - Lock mini pull pin M10xP1.0x8mm PIN7mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 8mm, D25, pin7
PSK300F-2510080707

A minimal hold-and-lock plunger preventing accidental re-engagement. Need quick locking with...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 12mm, D25, pin5 - Lock mini pull pin M10xP1.0x12mm PIN5mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 12mm, D25, pin5
PSK300F-2510120507

Supports safer adjustments by keeping the mini pin retracted when needed. If your screw assembly...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 12mm, D25, pin6 - Lock mini pull pin M10xP1.0x12mm PIN6mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 12mm, D25, pin6
PSK300F-2510120607

A mini plunger with a stable rest point to ensure zero unexpected movements. In small AV or automotive...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 12mm, D25, pin7 - Lock mini pull pin M10xP1.0x12mm PIN7mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 12mm, D25, pin7
PSK300F-2510120707

Hold-open capability helps in thorough inspections without constant tension. If your mini spring...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 17mm, D25, pin5 - Lock mini pull pin M10xP1.0 x17mm PIN5mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 17mm, D25, pin5
PSK300F-2510170507

Lock the pin in a pulled state, saving time and preventing user strain. If small machinery...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 17mm, D25, pin6 - Lock mini pull pin M10xP1.0 x17mm PIN6mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 17mm, D25, pin6
PSK300F-2510170607

A micro plunger that merges a rest function with robust spring tension. For limited-space specialized...

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Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 17mm, D25, pin7 - Lock mini pull pin M10xP1.0 x17mm PIN7mm Appearance
Small Indexing Plunger with Circle Plastic Clamping Knob, rest position, M10 x 1.0 x 17mm, D25, pin7
PSK300F-2510170707

Streamline complicated assemblies with a reliable plunger hold feature. If your mini plunger...

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Result 13 - 24 of 90

Lock-out Pull Pins with Clamping Knob | Enhance Your Equipment with Durable Knob Screws for Easy Adjustment"

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality Lock-out Pull Pins with Clamping Knob, hand screws, knob screws, adjustable handles, grip knobs, and indexing plungers. Their commitment to customization and precision ensures each component, from hand screws to indexing plungers, meets rigorous standards. This dedication positions UJEN as a leader in supplying durable and reliable industrial components to global markets.

UJEN Development Co., Ltd. is a leading manufacturer of precision-engineered hand screws, knob screws, plastic knobs, adjustable handles, and indexing plungers for a variety of industrial needs. Our 45-year legacy, combined with ISO 9001:2015 certification, underscores our commitment to quality, innovation, and customer satisfaction. Specializing in custom solutions, we excel in professional moldmaking, enhancing equipment functionality across industries.

UJEN has been offering customers high-quality hand screws for industrial machinery since 1994, both with advanced technology and 47 years of experiences, UJEN ensures each customer's demands are met.