How to Choose the Right Pull Pin for Your Application | Maximize Precision with Top-Quality Hand Screws for Industrial Use

Functional overview of pull pin types, showing how positioning, clamping, lock-out, and safety warning features differ by application. | High-quality hand screws for industrial machinery | UJEN

Functional overview of pull pin types, showing how positioning, clamping, lock-out, and safety warning features differ by application.

Pull Pin Selection Guide

How to Choose the Right Pull Pin for Your Application

Pull Pin Selection Guide helps engineers, designers, and OEM buyers choose the most suitable pull pin solution based on real application needs. While all pull pins provide tool-free positioning, differences in clamping force, lock-out operation, and visual safety feedback significantly affect usability, safety, and system stability. This guide explains how to evaluate these differences and clearly indicates which pull pin type should be selected for each requirement.
UJEN offers a complete pull pin family—from standard spring pull pins to clamping, lock-out, and safety warning variants—manufactured in Taiwan and supported with OEM/ODM customization for industrial, automation, medical, and fitness applications.


Pull Pin Selection Guide

Choose the Right Type by Application Requirement

Use the recommendations below to match your functional needs to the correct pull pin type. This page focuses on selection logic—what to choose and why. Dimensions, materials, and detailed specifications are provided on each product page.

Selection Recommendations

Requirement → Recommended Pull Pin Type

If your application requires simple and repeatable positioning without additional holding force, choose Spring Pull Pin with Knob .

If added stability is required after positioning to reduce vibration or unintended movement, choose Spring Pull Pin with Clamping Knob .

When hands-free adjustment is required during setup or repositioning, choose Lock-out Pull Pins with Clamping Knob .

For applications that require clear visual confirmation of proper locking, choose Safety Warning Spring Pull Pin with Clamping Knob .

In high-safety environments where both hands-free adjustment and visual locking confirmation are required, choose Safety Warning Lock-out Pull Pin with Clamping Knob .

Quick Decision Summary

At-a-Glance Selection Logic
  • Positioning only → Spring Pull Pin with Knob
  • Positioning with added stability → Spring Pull Pin with Clamping Knob
  • Hands-free adjustment → Lock-out Pull Pins with Clamping Knob
  • Visual safety confirmation → Safety Warning Spring Pull Pin with Clamping Knob
  • Maximum safety and control → Safety Warning Lock-out Pull Pin with Clamping Knob

Selection Notes

When to Upgrade to a Higher-Safety Type

If your equipment is user-facing, safety-critical, or frequently adjusted, upgrading from standard positioning to a clamping, lock-out, or safety warning type can help reduce user error and improve operational reliability.

OEM / ODM Support

Customize the Right Configuration for Your System

If your application involves specific load conditions, space constraints, or safety requirements, UJEN supports OEM and ODM development. Customization options include pin diameter, stroke, thread size, clamping force, indicator color, and knob design.

Pull Pin Selection Guide | Enhance Your Equipment with Durable Knob Screws for Easy Adjustment"

Based in Taiwan since 1994, UJEN DEVELOPMENT CO., LTD. expertise in manufacturing high-quality Pull Pin Selection Guide, 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.