Miscellaneous

Image	Part Number	Description / PDF	Quantity	Rfq
	CASPPSW10A Richco, Inc. (Essentra Components)	2.5IN NOM SWIVEL MED DTY CASTER:	0
	2503120125 Richco, Inc. (Essentra Components)	PLASTIC DOWEL, .312 OD, 1/8 IN L	0
	CASPUBHB15A Richco, Inc. (Essentra Components)	5IN NOM BH BRAKE MED DUTY CASTER	0
	CASBRWHL3A Richco, Inc. (Essentra Components)	3 IN NOM LGT DTY WHEEL:BLACK RUB	0
	CASNYBHB05A Richco, Inc. (Essentra Components)	3IN NOM BH BRAKE MED DTY CASTER:	0
	CASNYWHM4A Richco, Inc. (Essentra Components)	4 IN NOM MED DTY WHEEL:NYLON	0
	CASERBH10A Richco, Inc. (Essentra Components)	4IN NOM BH LGT DTY CASTER:ER STE	0
	CASNYSWB10A Richco, Inc. (Essentra Components)	4IN NOM SWIVEL BRAKE MED DTY CAS	0
	CASPUR15A Richco, Inc. (Essentra Components)	5IN NOM RIGID MED DTY CASTER:PU	0
	CASPUWHM3A Richco, Inc. (Essentra Components)	3 IN NOM MED DTY WHEEL:POLYURETH	0
	AS-1 Richco, Inc. (Essentra Components)	AXIS SPRING TPE/NYLON BLACK	0
	CASERSWB10A Richco, Inc. (Essentra Components)	4IN NOM SWIVEL BRAKE LGT DTY CAS	0
	CASBRWHL4A Richco, Inc. (Essentra Components)	4 IN NOM LGT DTY WHEEL:BLACK RUB	0
	CASBRBH15A Richco, Inc. (Essentra Components)	5IN NOM BH MED DTY CASTER:BR STE	0
	CASPUWHH4A Richco, Inc. (Essentra Components)	4 IN NOM HVY DTY WHEEL:POLYURETH	0
	ML-S-1BK Richco, Inc. (Essentra Components)	MAGNETIC LATCH SMALL BLACK	0
	CASNYSW30A Richco, Inc. (Essentra Components)	5IN NOM SWIVEL HVY DUTY CASTER:N	0
	CASERR15A Richco, Inc. (Essentra Components)	5IN NOM RIGID MED DTY CASTER:ER	0
	CASBRR015A Richco, Inc. (Essentra Components)	5IN NOM RIGID MED DTY CASTER:BR	0

Miscellaneous

1. Overview

Miscellaneous hardware components refer to specialized mechanical elements that do not fall into standard fastener categories but are critical for structural integrity, functionality, and system integration. These components enable precise load distribution, vibration damping, cable management, and environmental protection in modern engineering systems. Their importance has grown with advancements in automation, miniaturization, and multi-functional design requirements across industries.

2. Major Types and Functional Classification

Type	Functional Characteristics	Application Examples
Washers & Spacers	Distribute load, prevent loosening, maintain spacing	Aerospace bolted joints, plumbing systems
Cable Ties & Clips	Organize and secure wiring harnesses	Automotive wiring, data centers
Vibration Dampers	Isolate mechanical vibrations	Industrial machinery, HVAC systems
Threaded Inserts	Provide durable threads in soft materials	Aerospace composites, plastic enclosures
Anti-Rotation Pins	Prevent rotational movement in assemblies	Robotics, precision instruments

3. Structure and Composition

Typical components feature: - Material Core: Steel alloys (8.8-12.9 grade), stainless steel (A2/A4), aluminum (6061-T6), or engineered polymers (nylon 6/6, PEEK) - Surface Treatment: Zinc plating (5-25 m), passivation, anodizing, or polymer coatings - Geometric Features: Precision-machined internal threads (M1.6-M24), tolerance class 6H/6g - Specialized Elements: Integrated O-rings, self-locking mechanisms, or conductive paths

4. Key Technical Specifications

Parameter	Typical Range	Importance
Tensile Strength	400-1,200 MPa	Determines load capacity
Vibration Resistance	0-3,000 Hz operational range	System stability in dynamic environments
Temperature Range	-60 C to +300 C	Material performance under thermal stress
Corrosion Resistance	1,000-4,000h salt spray test rating	Long-term durability
Electrical Conductivity	0.01-60 MS/m	ESD protection requirements

5. Application Fields

Automotive: Engine mounts, sensor fixation systems
Aerospace: Composite panel fastening systems
Electronics: PCB grounding clips, heat sink retainers
Renewable Energy: Solar panel vibration dampers
Medical Devices: Sterilizable surgical instrument fasteners

6. Leading Manufacturers and Products

Manufacturer	Key Products	Technical Features
MISUMI	FS Type Vibration Dampers	Load capacity: 500N, Frequency range: 10-2,000Hz
McMaster-Carr	96510 Series Cable Glands	NPT thread sizes 1/4"-1", IP68 rating
3M	Scotch-Weld Structural Adhesive	Tensile strength: 34MPa, 25min cure time
TR Fastenings	Self-Clinching Standoffs	M2-M6 thread sizes, clamp load: 8kN
Halder Components	542 Series Anti-Vibration Mounts	Deflection: 3-10mm, 500,000 cycle durability

7. Selection Guidelines

Key considerations: - Environmental factors (temperature extremes, chemical exposure) - Mechanical requirements (dynamic vs static loads) - Regulatory compliance (ASTM F3148, ISO 2320) - Material compatibility with mating components - Assembly method constraints (hand tool vs automated installation) - Lifecycle cost analysis (maintenance intervals, replacement costs)

8. Industry Trends Analysis

Current developments include: - Smart Fasteners: Integrated strain gauges for condition monitoring (e.g., Airbus A350 wing sensors) - Nano-coatings: DLC (Diamond-Like Carbon) treatments reducing friction coefficients to 0.05 - Additive Manufacturing: Complex lattice structures for weight reduction (NASA's 3D-printed fuel nozzles) - Multi-material Systems: Hybrid polymer-metal fasteners for EV battery packs - Sustainability: Biodegradable polymer anchors achieving 90% recyclability

Emerging applications in autonomous vehicles and 5G infrastructure are driving demand for components with 0.01mm positional accuracy and 10-year maintenance-free operation.