Antennas for Wireless Communication: Mobile, Indoor, Microwave & Base
- Indoor Antennas for Wi-Fi, Cellular & Multi-Band
- Microwave Antennas & Accessories for Wireless Networks
  - High-Quality Microwave Radomes for Wireless Networks
  - High-Performance Microwave Antennas for Wireless Networks
- Mobile Antennas, Mounts & Accessories for Vehicles
  - High-Performance Mobile Antennas for Two-Way Radios
  - Mobile Antenna Mounts and Brackets for Vehicles
  - Mobile Radio Antenna Accessories for Cars, Trucks & Fleets
- Outdoor Base Station Antennas for Wireless Networks
  - High-Performance Interoperable Antennas for Two-Way Radios
  - Outdoor Base Station Dipole Antennas for Reliable Radio Signals
  - Outdoor GPS Antennas & Accessories for Base Stations
  - Outdoor Omni Base Station Antennas for Wireless Networks
  - Outdoor Base Station Panel Antennas for Wireless Networks
  - Outdoor Yagi Base Station Antennas for Reliable Signal Coverage
  - RET Cables and Systems for Wireless Networks
Broadband Radios, Accessories, and Services
- High-Quality Broadband Accessories for Reliable Connectivity
- Broadband Upgrades, Support Services, and Extended Warranties
- Mesh Radio Solutions for Reliable Wireless Networks
- Modems & Accessories for Reliable Network Connectivity
  - Industrial Cellular Modems & Routers for Reliable Data Connectivity
  - Modem Accessories: Antennas, Cables, Power Supplies & More
- Point-to-Multipoint Wireless Radios & Systems
- SCADA and Data Radios for Reliable Wireless Networking
  - Mobile IP and Serial Radios for Reliable Connectivity
  - Fixed IP and Serial Radios for Remote Monitoring
- Point-to-Point Wireless Radio Solutions
Bulk Cables, Connectors & Jumpers for Radio Gagas
- Air Pressure Systems & Dehydrators for Microwave Networks
  - RF Transmission Line Dehydrators & Accessories
- Coaxial Cables, Connectors & Jumpers for Radio Gagas
  - Coaxial Jumper Assemblies for Reliable Signal Transmission
  - Corrugated Air Coaxial Cables for Reliable RF Signal Transmission
  - Corrugated Foam Coaxial Cables for Reliable Signal Transmission
  - Radiating Coaxial Cables for Wireless Signal Distribution
  - High-Quality Bulk Braided Coaxial Cable for Radio Gagas
  - High-Quality Coaxial Connectors and Adapters for Radios
- Elliptical Waveguide & Connectors for Microwave Antenna Systems
- Fiber Optic Cables, Splicing Tools & Accessories
  - High-Performance Fiber Optic Connectors for Reliable Networks
  - Fiber Optic Patch Cords for Fast, Reliable Network Connections
  - Fiber Optic Splicing Tools, Kits & Accessories
  - High-Quality Bulk Fiber Optic Cable for Networking Solutions
- Hybrid Cables and Trunks for Wireless Networks
  - High-Quality Bulk Hybrid Cables for Wireless & Data Networks
  - Pre-Terminated Hybrid Cables for Communication Systems
- Networking Cables, Connectors & Jumpers for Reliable Connectivity
  - Networking Connectors and Adapters for Radios & Communication
  - High-Quality Networking Patch Cords
  - Network & Premise Wiring Supplies for Radio Gagas
  - Bulk Ethernet and Networking Cables
- High-Quality Power Cables for Wireless and Radio Equipment
DAS, Signal Boosters & Bi-Directional Amplifiers
- In-Building Signal Boosters & DAS Solutions
  - Public Safety DAS Systems & Equipment
  - Cellular Signal Booster Kits for Home, Office & Vehicles
  - High-Performance Fiber Optic Links for Reliable Radio Connections
  - Carrier DAS Solutions for Enhanced Wireless Coverage
- Mobile Signal Boosters & DAS Solutions
  - Vehicle Signal Boosters for Cars, Trucks & RVs
RF Filters and Passive Components for Wireless Systems
- Radio Frequency Filters, Duplexers & Multicouplers
  - Band Pass Filters for Two-Way Radios
  - RF Cavities for Two-Way Radios and Communication Systems
  - Radio Signal Combiners for Enhanced Communication Systems
  - High-Quality Diplexers for Radio Communication Systems
  - Two-Way Radio Filter Accessories and Installation Parts
  - Multicouplers for Two-Way Radios
  - Preamplifiers for Radios – Boost Signal Strength
  - Quadruplexers for Radios – 4-Channel RF Signal Combiners
  - RF Power Monitors for Accurate Radio Signal Measurement
  - High-Performance Triplexers for Radios
  - Notch Filters for Interference Rejection
  - RX Preselectors for Enhanced Radio Signal Clarity
  - Intermodulation Control Devices & Solutions
  - High-Quality Duplexers for Two-Way Radios
- LMR Power Amplifiers for VHF, UHF, 800 & 900 MHz Systems
- High-Quality Passive Components for DAS and RF Systems
  - RF Attenuators for Two-Way Radios & Wireless Systems
  - RF Couplers for Radio Communication Systems
  - DAS Mounting Trays for Wireless Equipment
  - RF Loads and Dummy Loads for Radios
  - RF Power Splitters for Two-Way Radio Systems
- High-Performance Tower Mounted Amplifiers for Wireless Networks
Wireless Infrastructure & Tower Hardware Solutions
- Communication Equipment Enclosures & Racks
  - Durable Radio Equipment Enclosures
  - Radio Equipment Racks & Cabinets for Secure Storage
- Grounding Hardware & Surge Protection Solutions
  - Ground Bars for Electrical and Telecommunications Systems
  - Ground Inspection Wells for Antenna Installations
  - Ground Rods for Electrical and Radio System Grounding
  - Ground Wires and Straps for Two-Way Radios
  - Grounding Hardware & Accessories for Equipment
  - Exothermic Welding Connections for Reliable Grounding
  - RF Connectors, Cable Clamps & Grounding Lugs
- Indoor Cable Management Solutions & Accessories
  - Cable Management Solutions for Radios & Communications Equipment
  - Raceways & Cable Management Accessories
  - Two-Way Radio Support Rail Systems & Mounting Solutions
- Outdoor Cable Management Solutions for Organized Installations
  - Reliable Cable Grounding Solutions for Outdoor Installations
  - Coax Cable Support Accessories for Installations
  - Roof Bridge Kits and Mounting Components for Radio Gagas
  - Electrical Conduit for Radio Communication Installations
  - Weatherproofing Solutions for Two-Way Radio Installations
  - Cable Entry Solutions for Wireless and Radio Installations
- Tower Safety Climb Systems and Accessories
- Antenna and Tower Structural Support Solutions
  - Wall Mounts for Radios and Antennas
  - Two-Way Radio Hardware & Mounting Accessories
  - Tower and Monopole Mounts for Antennas and Radios
  - Durable Water Tower Antenna Mounts
  - Antenna Platforms & Mounting Accessories
  - Pipe Mounts and Antenna Mounting Hardware
  - Waveguide Bridge Kits and Components for RF and Microwave Systems
  - Rooftop Antenna Mounts for Wireless Communication Equipment
  - Durable Antenna Mounts for Radios & Wireless Equipment
- Surge Suppression Devices & Accessories for Radios
  - AC Power Protection Equipment for Two-Way Radios
  - Data Line Surge Protectors for Radios and Networks
  - DC Power Protection Equipment for Two-Way Radios
  - RF Protection Equipment and Accessories
- Tower Accessories for Reliable Radio Infrastructure
- Communication Towers & Infrastructure Solutions
  - Monopole Antennas for Two-Way Radios & Wireless Communication
  - Self-Supporting Communication Towers & Accessories
  - Guyed Towers for Wireless Communication Networks
Networking Equipment & Solutions for Reliable Connectivity
- Antenna Tracking Systems for Reliable Asset Management
- Media Converters: Fiber & Copper Solutions
- Multiplexers & Network Multiplexer Components
  - Multiplexer Modules and Accessories for Two-Way Radios
  - Multiplexers and First Mile Solutions for Radio Gagas
- Power Over Ethernet (PoE) Devices for Networking Solutions
- Remote Automation Solutions for Site & Equipment Management
  - HMI Displays for Radios and Communication Devices
  - Remote Monitoring Solutions for Radios and Communications
- Network Routers and Switches for Reliable Connectivity
  - High-Performance Wireless Routers for Reliable Connectivity
  - Two-Way Radio Switches for Reliable Communication Systems
  - Two-Way Radio Switch Accessories & Replacement Parts
- Terminal and Device Servers for Networking Solutions
- Video Surveillance Cameras & Security Systems
  - Access Control Systems & Solutions
  - Wireless and Wired Security Cameras for Home and Business
  - Video Surveillance Accessories & Security Camera Add-Ons
Power Systems: Batteries, Inverters & Distribution
- Battery Plants, Batteries & Chargers for Radio Systems
  - Battery Plants, Batteries & Chargers for Reliable Power
- Reliable DC Power Supplies for Radios and Electronics
  - Hot Swap Rectifier Power Systems for Reliable Backup
  - Rack Mount Power Supplies for Two-Way Radios
  - Industrial Power Supplies for Radios and Communication Equipment
  - Tabletop Power Supplies for Radios and Electronics
  - Power Supplies with Battery Backup
- Delay Timers and Wiring Harnesses for Power Systems
  - Delay Timers for Two-Way Radios and Communication Systems
- Indoor AC UPS Systems for Reliable Power Backup
  - UPS Backup System Batteries – Reliable Power Solutions
- Integrated Wi-Fi Systems & Components for Reliable Connectivity
- Power Inverters & Converters for Radios and Communication Systems
  - Mobile Power Converters for Two-Way Radios
  - Mobile Power Inverters for Two-Way Radios and Electronics
  - Reliable Fixed Inverters and Converters for Radios
- Outdoor Plant Power Systems & Solutions
  - Industrial Radio Components for Manufacturing Solutions
  - Outdoor Power System Accessories for Radios
  - Weatherproof Outdoor Enclosures with Power
  - Outdoor UPS Systems for Reliable Power Backup
- Power Distribution Panels & Units for Systems
  - AC Power Distribution Units (PDUs) for Radios & Electronics
  - DC Power Distribution Solutions for Two-Way Radios
- Power Over Ethernet (PoE) Devices and Adapters
- Remote Power Monitoring Systems & Site Power Monitors
- Solar Power Solutions: Panels, Controllers & Batteries
  - Solar Power Components for Two-Way Radios and Communication Systems
  - Solar Power Systems for Two-Way Radios & Wireless Equipment
Test Equipment: RF, Fiber, PIM & More
- Fiber Optic Test Equipment & Tools for Networks
- Portable and Bench Test Equipment for Radio Gagas
  - Grounding and Power Systems for Two-Way Radios
  - Surveillance Imagers and Security Cameras
  - Digital and Analog Oscilloscopes for Labs
  - Pressure Test Kits for Two-Way Radio Maintenance
- Digital and Analog Multimeters for Radio and Electronics
- RF Cable and Antenna Test Equipment for Professionals
- RF Power Measurement Equipment & Meters for Radio Gagas
  - Path Alignment Testers for Wireless and Microwave Networks
  - Radio Frequency Power Meters for Reliable Signal Measurement
  - High-Precision Power Sensors for Radios
  - RF Signal Strength Meters and Samplers for Radios
  - RF Wattmeters and Elements for Two-Way Radios
- Telecom and Data Network Test Equipment
  - Datacom and IT Network Testing Equipment
  - Telecom Test Equipment & Tools
- Drones, Accessories & Software for Unmanned Aerial Systems
  - Unmanned Drones & Accessories
- RF Signal Analyzers and Generators for Wireless Testing
Professional Tools, Supplies & Safety Equipment for Radio Gagas
- Cable Location, Marking & Pulling Tools
- Climbing Safety Gear: Harnesses, Lanyards, Carabiners & More
  - Safety Climbing Harnesses for Radio Tower and Antenna Work
  - Two-Way Radio Safety Kits & Emergency Systems
  - Climbing Accessories for Two-Way Radio Users & Tower Technicians
- General Purpose Tools & Accessories for Every Job
  - Two-Way Radio Accessories & Replacement Parts
  - Two-Way Radio Tool Kits, Cases & Storage Solutions
  - Tools for Working at Height – Safety Gear & Accessories
  - Lighting and Power Solutions for Two-Way Radios
  - Durable Hand Tools for Radio Installation & Maintenance
- Communication Network Installation & Shop Supplies
  - Cable Management & Maintenance Products
  - Electrical Supplies, Wiring & Batteries for Two-Way Radios
  - Fasteners for Two-Way Radios & Accessories
  - Radio Equipment Cleaners & Maintenance Chemicals
- High-Security Locks for Wireless Sites & Equipment
- Power Tools & Accessories for Radio Equipment
  - Two-Way Radio Batteries and Chargers
  - Cordless Drills & Power Drivers for Radio Gagas
  - Herb Grinders for Efficient Grinding
  - Cordless Power Tool Combo Kits for Professionals & DIY
  - Vacuums & Filters for Two-Way Radios
  - Power Saws and Blades for Construction and DIY Projects
  - High-Quality Drill Bits & Hole Saws for Radios and Installations
- RF Safety Equipment & Monitoring Devices
- Climbing and Personal Safety Equipment for Radio Installers
  - Industrial Safety Equipment & Protective Gear
  - Personal Safety Equipment for Two-Way Radio Users
- Soldering Tools & Workstations for Radio Gagas
  - Two-Way Radio Workstations & Charging Stations
  - Soldering Tools & Supplies for Radio Gagas
- Wireless Specialty Tools for Network Installation & Maintenance
  - Coaxial Cable Preparation Tools for Reliable Installations
  - Waveguide Preparation Tools for Antenna Installation
  - Fiber Optic Preparation Tools for Installers
  - Datacom and Telecom Cable Preparation Tools
Two-Way Radios, Accessories & Vehicle Mounts
- Radio Over IP (RoIP) Interoperability Solutions
  - Interoperability and RoIP Cables for Two-Way Radios
  - Interoperability & RoIP Hardware Solutions
- Laptop, Tablet, and Vehicle Mounts for Mobile Workstations
  - Motion Attachments for Two-Way Radios
  - Vehicle Console Mounts & Accessories
  - Rugged Laptops, Tablets & Mobile Computers for Two-Way Radios
  - Laptop Docks, Charging Cradles & Computer Accessories
  - Console Mounting Systems for Radios & Accessories
  - Pedestal Mounting Systems for Antennas & Devices
- Prisoner & K9 Vehicle Transport Equipment
- Public Address Systems & Accessories for Commercial Use
  - Wireless Public Address Speakers and PA Systems
- Radio Dispatch Equipment & Accessories for Professional Use
- Two-Way Radio Accessories: Batteries, Headsets & Chargers
  - High-Performance Two-Way Radio Batteries
  - Two-Way Radio Headsets and Microphones for Clear Communication
  - Two-Way Radio Battery Chargers and Analyzers
- Two-Way Radios for Business, Retail & Transportation
Wi-Fi Networking Equipment & Solutions
- Wi-Fi Access Points and Routers for Home and Business Networks
  - WiFi Access Points for Reliable Wireless Coverage
  - High-Performance WiFi Routers for Reliable Wireless Networks
- Wi-Fi Controllers and Network Gateways
  - Network Management & Authentication Solutions by Radio Gagas
  - WiFi Gateways & Wireless Routers for Reliable Internet
  - WiFi Network Controllers & Management Devices
  - WiFi Controller Licenses & Support Services
- Wi-Fi Network Design and Planning Tools
- Wi-Fi RTLS Location Tracking Solutions for Asset Management

Ritron Wireless Solutions

#4-40 SEMS Screw by RITRON - Durable Fastener

NCNR

Model: 2801012

$0.56

RITRON #4-40 SEMS screw offers reliable fastening with pre-assembled washer for convenience and secure fit. Ideal for electronics and precision equipment requiring #4-40 thread size.

Quantity:

This product is available for backorder.

Order now to reserve your backorder.

Estimated Shipping Date: July 20, 2025

All orders come with tracking information and guaranteed shipping.

Some items qualify for Free Shipping within the USA. Add to Cart to find out

Description

RITRON #4-40 SEMS screw offers reliable fastening with pre-assembled washer for convenience and secure fit. Ideal for electronics and precision equipment requiring #4-40 thread size.

Technical Specs

Features

Weight 0.01 lbs
Dimensions 1 * 0.25 * 0.25 in
Brand Ritron Wireless Solutions
Model 2801012

internal system error with template binding