Side Bolts (Pins): Types, Selection, and Applications

Knowledge Center · 2026-10-23 09:49:50 · 10 hits

1. Fundamentals

① Definition. A Side Bolt is a simple device used to fix or connect two components. It is usually made of metal and offers a defined level of strength and durability.

② Basic construction.

Component	Function
Pin body / shank	The main section inserted into the hole to form the connection
Head	At one end; provides grip for hand or tool installation / removal
Tail / end	Can be flat, round, or other forms to suit different applications

2. Main Types of Side Bolt

① By material

Material	Property	Typical use
Steel pin	High strength	Heavy-duty applications
Stainless steel pin	Excellent corrosion resistance	Outdoor or humid environments
Aluminum alloy pin	Lightweight with good strength	Aerospace, automotive, weight-sensitive uses

② By shape

Shape	Feature	Use
Straight pin	Simplest, most common	General locating / connection
Bent / curved pin	Angled to suit a specific layout	Improves stability in a defined direction
Threaded pin	One end threads into a preset hole	Increases connection firmness

③ Special-purpose Side Bolts

Type	Mechanism	Benefit
Quick-release pin	Spring-loaded detent	Fast unlocking and removal
Safety locking pin	Integrated locking mechanism	Stays secure even under vibration

3. Application Scenarios

Sector	Role of the pin
Machinery	Temporary locating point during assembly; permanent connection (e.g., machine bed to worktable)
Furniture	Fixing moving parts such as door panels and drawers; extra safety against accidental opening
Construction	Structural reinforcement (bridges, high-rise buildings); auxiliary fixing for doors and windows

4. Selection and Installation Guide

① Selection basis.

Operating environment: consider temperature range, humidity, and corrosion exposure.

Load requirement: choose the specification per the expected load.

Material compatibility: ensure good chemical compatibility with the connected material.

② Installation steps.

Preparation — verify all components are present and confirm the correct mounting position.

Hole preparation — drill/bore precisely to the pin's dimensions.

Installation — carefully insert the pin and ensure it is fully seated.

Final inspection — confirm the pin is secure before putting the assembly into service.

③ Maintenance.

Regular inspection — watch for looseness and correct it promptly.

Cleaning — prevent dust buildup that could impair operation.

Replace worn parts — replace any damaged component immediately to maintain safety.

Selection & installation checklist:

Environment (temp / humidity / corrosion) assessed

Load rating matched to duty

Material compatibility confirmed

Holes bored to pin dimension, both sides aligned

Pin fully seated; lock/release function verified

Periodic inspection and cleaning scheduled

5. Summary

Pins are among the simplest yet most versatile fastening elements in FA and mechanical systems. Correct material, shape, and type selection — paired with precise holes and a verification step — delivers reliable locating and connection across machinery, furniture, and structural applications.

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