Careers
Contact
Distributors
Sonic Select
Int
US
Nl
What are you searching for?
My quote
Search
My quote
Menu
Products
Product Categories
Training
Field measuring equipment
Monitoring
Pumps
Sonic drilling
Drill rigs
Drilling accessories
Tooling
Sonic Tooling App
Data and insights
Single wall bits
Dual wall bits
CPT
CPT rigs
CPT pushers
CPT Measuring Systems
Rods, Friction reducers & Cross-overs
Field Consumables
Monitoring Wells & Accessories
Well protection materials
Bentonite and filter sand
Water Sampling Consumables
Soil Sampling & Testing
Hand augers
Gouge augers
Undisturbed core samplers
Grass plot samplers
Root samplers
Profile samplers
Machine operated auger sets
Auger accessories
Sludge & Sediment Samplers
Water Sampling & Testing
Water samplers
Sampling bailers
Liquid layer samplers
Soil moisture samplers
Laboratory Equipment
pF determination
Particle size distribution
Aggregate stability
Soil volume and density
Air permeability
Water permeability
Compression and shear testing
Calcium carbonate content
General Lab Equipment
Agriculture
Compost Tea
Manure Sampling
Soil and Water Research Training
Soil Classification
Installing Monitoring Wells
Sampling
Equipment
Cone Penetration Testing Training
CPT Operator Training: Beginners
CPT Training for Engineers
Understanding the New CPT ISO Standard
Sonic Drilling Training
Sonic Driller Training: Beginners
Sonic Driller Training: Advanced
Sonic Drill Rigs Mechanic Training: Basic
Sonic Drilling for Managers
Resistance to penetration
Manually operated
Electronic with datalogger
Shear stress
Mechanical
Infiltration
Hydraulic conductivity
Infiltrometers
Soil moisture
Indirect
Volume percentage
Particle size and soil classification
Hand sieve
Sand ruler
Soil classification
Water level
With acoustic and light signal
Water discharge
Current velocity meters
Water quality
Water quality test kits
Water quality meters
Sensors and Probes
Water level sensors
Soil sensors
Evaporation
Read-out units
Sensor accessories
Weather sensors
Flow measurement
Data communication and management
Modems
Web portal
Multiparameter meters
Scuba water quality probes
Scuba accessories
Algae monitoring
Groundwater pumps
Peristaltic pumps
Submersible pumps
Foot valve pumps
Various pumps and accessories
Solutions
For Applications
For Industries
Soil
Measuring Soil Penetration Resistance
Water
Measuring water flow
Water sampling
Measuring water quality
Measuring water levels
Evaporation and Precipitation
Data
DaaS for the global water sector
Telemetry
Construction & Infrastructure
Water Management
Near shore & Offshore
Mining
Equipment for every phase of mining
Remote Operations for Mining
Water Resources Management
Tailings Storage Facility Investigation
Agriculture
Soil quality research
Environmental science
Research & Education
Success stories
Academy
Knowledge Hub
Customer Support
Academy
Services
Rentals
Returns
Software
FAQ
Sonic Select
Royal Eijkelkamp Academy
Training Courses
Maintenance
Field and laboratory equipment
Sonic drilling rigs
CPT cones and modules
CPT rigs
Eijkelkamp Service Assistant
Diver service
Manure technology service
Smart Monitoring Services
Soil and Water Rentals
Our company
About us
Contact
Event Calendar
News and recognition
Royal Eijkelkamp Magazine
Careers at Royal Eijkelkamp
Royal Eijkelkamp Demo Day
Eco innovation
InnoFields
Soil Valley
Partnerships
NL-FSA
Water Works
ROAK
Products
Product Categories
Sonic drilling
Drill rigs
Drilling accessories
Tooling
Sonic Tooling App
Data and insights
Single wall bits
Dual wall bits
CPT
CPT rigs
CPT pushers
CPT Measuring Systems
Rods, Friction reducers & Cross-overs
Field Consumables
Monitoring Wells & Accessories
Well protection materials
Bentonite and filter sand
Water Sampling Consumables
Soil Sampling & Testing
Hand augers
Gouge augers
Undisturbed core samplers
Grass plot samplers
Root samplers
Profile samplers
Machine operated auger sets
Auger accessories
Sludge & Sediment Samplers
Water Sampling & Testing
Water samplers
Sampling bailers
Liquid layer samplers
Soil moisture samplers
Laboratory Equipment
pF determination
Particle size distribution
Aggregate stability
Soil volume and density
Air permeability
Water permeability
Compression and shear testing
Calcium carbonate content
General Lab Equipment
Agriculture
Compost Tea
Manure Sampling
Product Categories
Training
Soil and Water Research Training
Soil Classification
Installing Monitoring Wells
Sampling
Equipment
Cone Penetration Testing Training
CPT Operator Training: Beginners
CPT Training for Engineers
Understanding the New CPT ISO Standard
Sonic Drilling Training
Sonic Driller Training: Beginners
Sonic Driller Training: Advanced
Sonic Drill Rigs Mechanic Training: Basic
Sonic Drilling for Managers
Training
Field measuring equipment
Resistance to penetration
Manually operated
Electronic with datalogger
Shear stress
Mechanical
Infiltration
Hydraulic conductivity
Infiltrometers
Soil moisture
Indirect
Volume percentage
Particle size and soil classification
Hand sieve
Sand ruler
Soil classification
Water level
With acoustic and light signal
Water discharge
Current velocity meters
Water quality
Water quality test kits
Water quality meters
Field measuring equipment
Monitoring
Sensors and Probes
Water level sensors
Soil sensors
Evaporation
Read-out units
Sensor accessories
Weather sensors
Flow measurement
Data communication and management
Modems
Web portal
Multiparameter meters
Scuba water quality probes
Scuba accessories
Algae monitoring
Monitoring
Pumps
Groundwater pumps
Peristaltic pumps
Submersible pumps
Foot valve pumps
Various pumps and accessories
Pumps
Products
Solutions
For Applications
Soil
Measuring Soil Penetration Resistance
Water
Measuring water flow
Water sampling
Measuring water quality
Measuring water levels
Evaporation and Precipitation
Data
DaaS for the global water sector
Telemetry
For Applications
For Industries
Construction & Infrastructure
Water Management
Near shore & Offshore
Mining
Equipment for every phase of mining
Remote Operations for Mining
Water Resources Management
Tailings Storage Facility Investigation
Agriculture
Soil quality research
Environmental science
Research & Education
For Industries
Solutions
Success stories
Academy
Knowledge Hub
Academy
Customer Support
Academy
Royal Eijkelkamp Academy
Training Courses
Academy
Services
Maintenance
Field and laboratory equipment
Sonic drilling rigs
CPT cones and modules
CPT rigs
Eijkelkamp Service Assistant
Diver service
Manure technology service
Smart Monitoring Services
Services
Rentals
Soil and Water Rentals
Rentals
Returns
Software
FAQ
Sonic Select
Customer Support
Our company
About us
Why Royal?
Mission and Vision
Company Core Values
Eijkelkamp Foundation
Sustainable Development Goals
ISO certification
Memberships
Board of directors
CO₂ Performance Ladder
About us
Contact
Event Calendar
Water in Balance 11 June 2026
Event Calendar
News and recognition
Health and Safety Award 2025
Eijkelkamp Water Works
Strategic partnership with PureTerra
Geothermal energy projects in South East Asia
Most sustainable entrepreneur
Our merger is final - company details are changing
News and recognition
Royal Eijkelkamp Magazine
Careers at Royal Eijkelkamp
Royal Eijkelkamp Demo Day
Our company
Eco innovation
InnoFields
Soil Valley
Partnerships
NL-FSA
Water Works
About Water Works
Clients served
Solutions
Urban Water
Industrial Water
Coastal Water
Off-Grid Water
Contact us
Water Works
Eco innovation
ROAK
Int
US
Nl
Careers
Contact
Distributors
Sonic Select
Back to overview
Home
Products
Product Categories
Field Consumables
Well protection materials
Hexagonal socket-head screw
Hexagonal socket-head screw
Variations available
Hexagonal socket-head screw bit, vandalism proof. Available in two sizes.
Product Description
Product Description
Article numbers
997524 Socket-head screw 4 mm
997525 Socket-head screw 5 mm
Print this page
