Application
What will the fastener hold or assemble? Is it maintenance, structure, sheet metal, wood, plastic or machinery?
Buying guide
Not sure which screw to buy?
Start with the application and environment. With a photo, drawing or sample, ESHUA can help you validate the most suitable fastener.
Before choosing
Five questions prevent many purchasing mistakes.
Environment
Will it be indoors, outdoors, with humidity, chemicals, heat or corrosion risk?
Load
Will it carry weight, vibration, movement, pull-out force or only light positioning?
Base material
Define if the base is steel, stainless, aluminum, wood, concrete, plastic or sheet metal.
Size and access
Measure diameter, length, thread, head type and tool access. A photo helps.
Finish
Choose galvanizado/zinc, pavonado, tropicalizado, nickel, stainless or special finish according to the environment.
Common families
What each fastener is usually for.
Screw
Usually threads into a tapped hole, nut or material prepared to receive it.
Self-tapping screw
Forms or cuts its own thread in sheet metal, wood, plastic or light materials.
Bolt
Works with a nut or threaded component for stronger assemblies.
Nut
Locks a bolt, stud or threaded rod from the opposite side.
Washer
Distributes load, protects surfaces or helps with vibration depending on type.
Anchor
Fixes components to concrete, masonry or walls.
Rivet
Permanent fastening when there is limited access to the back side.
Threaded rod
Useful for suspension, leveling, anchoring or custom lengths.
When to ask for advice
Ask before buying when the application is critical.
If the part supports load, vibration, corrosion, safety, production stoppage or an unusual material, send the drawing, photo, sample or specification before deciding.
FAQ
Fastener buying questions.
How do I know which screw I need?
Start with application, base material, load, environment, size and finish. If you have a photo, drawing or sample, ESHUA can help validate the option before quoting.
What is the difference between galvanized and stainless?
Galvanized is a protective finish usually applied over steel; stainless is a material with higher inherent corrosion resistance. Selection depends on environment and use.
Can I quote with a photo, sample or drawing?
Yes. For unidentified or special parts, a photo, sample, drawing or technical reference helps review size, material, finish and alternatives.
What if I cannot find the part in the catalog?
You can request support through the quote form or WhatsApp. The team reviews whether the part can be sourced, substituted or manufactured to specification.
