Knobs

Part Number	Description / PDF	Quantity
KSM1----O3--5-- Richco, Inc. (Essentra Components)	SELF-ASSEMBLY FLUTED KNOB 1.500	1400
KN5C----F7SBS22 Richco, Inc. (Essentra Components)	CLAMPING FLUTED KNOB 2.500 IN DI	200
KNH10HEXTH1---- Richco, Inc. (Essentra Components)	SELF-ASSEMBLY WING KNOB 1.250 IN	1200
KN8C----F7S--21 Richco, Inc. (Essentra Components)	CLAMPING FLUTED KNOB 2.500 IN DI	200
KNH2-HEX5S2---- Richco, Inc. (Essentra Components)	SELF-ASSEMBLY STAR KNOB 1.380 IN	1000
KNM6----B5---22 Richco, Inc. (Essentra Components)	BALL KNOB 1.610 IN DIAMETER WITH	200
KN4C0500K7---21 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 0.750 IN DIAMETER	926
KN5C1750F6---21 Richco, Inc. (Essentra Components)	CLAMPING FLUTED KNOB 2.380 IN DI	200
29R010B Richco, Inc. (Essentra Components)	ROUND THUMB SCREW KNOBS, NO SCRE	7999
KN020750K6---21 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 1.000 IN DIAMETER	600
KN5C----F6-L-21 Richco, Inc. (Essentra Components)	CLAMPING FLUTED KNOB 2.380 IN DI	250
KS4C----N5--5A0 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 0.750 IN DIAMETER	1980
KS82----N3--5A0 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 0.500 IN DIAMETER	3500
KN5C0750F2---21 Richco, Inc. (Essentra Components)	CLAMPING FLUTED KNOB 1.375 IN DI	550
KN6C1500F4---21 Richco, Inc. (Essentra Components)	CLAMPING FLUTED KNOB 1.750 IN DI	500
KSM8----N6--5A0 Richco, Inc. (Essentra Components)	PUSH PULL KNOB 1.000 IN DIAMETER	1198
KN4C----5SA--21 Richco, Inc. (Essentra Components)	CLAMPING STAR KNOB 2.250 IN DIAM	750
KN4C06254S1--90 Richco, Inc. (Essentra Components)	CLAMPING 4 ARM KNOB 1.150 IN DIA	500
29R004BL Richco, Inc. (Essentra Components)	ROUND THUMB SCREW KNOBS, NO SCRE	2000
KN5C10004P7--21 Richco, Inc. (Essentra Components)	CLAMPING 4 ARM KNOB 2.500 IN DIA	400

Knobs

1. Overview

Knobs are mechanical components designed for manual adjustment, control, or fixation of devices and equipment. As critical elements in hardware systems, they provide user interfaces for torque transmission, positional adjustment, and functional control. Modern knob designs integrate ergonomic principles, material science, and precision engineering to ensure reliable performance across industrial, commercial, and consumer applications.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Wing Screws	Hand-adjustable fastening with wing-shaped heads	Panel fastening in electronics enclosures
Dial Knobs	Precision adjustment with graduated scales	Lab equipment and audio mixers
Keyed Locknuts	Security-focused design with key-operated adjustment	Machinery calibration systems
Pull-to-Release Knobs	Integrated locking mechanism with axial release	Industrial control panels

3. Structure and Composition

Typical knob assemblies consist of: - Body: Formed from metal alloys (aluminum, brass) or engineered plastics (nylon, polycarbonate) - Threaded Insert: Brass or stainless steel internal threads for secure mounting - Retention Feature: Knurling, splines, or set screws for shaft coupling - Surface Treatment: Anodizing, powder coating, or electroplating for corrosion resistance

4. Key Technical Specifications

Parameter	Significance
Material Hardness (Shore/Brinell)	Determines wear resistance and load capacity
Thread Engagement Depth	Affects axial load transmission efficiency
Maximum Torque Rating (Nm)	Critical for rotational force transmission
Temperature Resistance Range	Defines operational limits in extreme environments
Surface Friction Coefficient	Impacts tactile feedback and slip resistance

5. Application Fields

Industrial Machinery: CNC machine controls, conveyor belt tensioners
Electronics: Audio equipment attenuators, test instrument selectors
Automotive: HVAC control knobs, seat adjustment mechanisms
Aerospace: Cockpit instrumentation controls, avionics panel fasteners
Medical Devices: Diagnostic equipment parameter adjusters

6. Leading Manufacturers and Products

Manufacturer	Product Series	Key Features
Misumi	KA2000 Series	Modular design with 12-position indexing
Knobs-R-Us	ProGrip XT	Ergonomic thermoplastic elastomer coating
Eclipse Industrial	Aluminum Anodized Line	MIL-STD-810G environmental compliance

7. Selection Guidelines

Key consideration factors: - Environmental conditions (temperature, chemical exposure) - Required torque transmission capacity - Mounting shaft geometry compatibility - Regulatory compliance (REACH, RoHS) - Aesthetic requirements for user interface

8. Industry Trends

Current development directions include: - Integration of smart materials with self-lubricating properties - Miniaturization for semiconductor manufacturing equipment - Haptic feedback enhancement through surface micro-texturing - Adoption of additive manufacturing for complex geometries - Increased use of corrosion-resistant polymer composites