Understanding Fastener Standards: DIN, ISO and ASTM Explained
A short explainer on the three standards families you'll see most often when sourcing fasteners internationally.
Choosing the Right Fastener Material: Carbon Steel, Alloy Steel or Stainless Steel
A practical comparison to help you choose between the three materials most commonly specified for industrial fasteners.
Nuts, Bolts and Washers: A Buyer's Guide to Common Fastener Types
A quick reference to the fastener types most buyers ask about, and what each one is typically used for.
Hex Bolts: Specifications, Applications and Sourcing from India
High-strength hex bolts available in multiple grades and finishes. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Square Head Bolts: Specifications, Applications and Sourcing from India
Durable square head bolts for specialized mechanical applications. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Allen CSK Bolts: Specifications, Applications and Sourcing from India
Countersunk Allen bolts for flush mounting applications. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Allen Cap Bolts: Specifications, Applications and Sourcing from India
Precision-engineered socket head cap screws with cylindrical heads. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
U-Bolts: Specifications, Applications and Sourcing from India
U-shaped fasteners for securing pipes and tubes to structural members. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
T-Bolts: Specifications, Applications and Sourcing from India
T-shaped bolts designed for specialized fixture and clamping applications. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Expansion Bolts: Specifications, Applications and Sourcing from India
Anchoring fasteners that expand when tightened for secure mounting. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Carriage Bolts: Specifications, Applications and Sourcing from India
Smooth rounded head bolts with square neck for preventing rotation. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Gland Eye Bolts: Specifications, Applications and Sourcing from India
Specialized eye bolts with gland design for sealing and anchoring applications. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Lifting Eye Bolts: Specifications, Applications and Sourcing from India
Industrial eye bolts designed for heavy lifting and secure anchoring. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Foundation Bolts: Specifications, Applications and Sourcing from India
Specialized bolts for securing structures to concrete foundations. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Half Thread Bolts: Specifications, Applications and Sourcing from India
Bolts with threads on approximately half of the shank length. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Full Thread Bolts: Specifications, Applications and Sourcing from India
Bolts with threads running the entire length of the shank. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Hex Nuts: Specifications, Applications and Sourcing from India
Standard hexagonal nuts for use with threaded bolts and screws. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Nylon Lock Nuts: Specifications, Applications and Sourcing from India
Self-locking nuts with nylon inserts to prevent loosening. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Lock Nuts: Specifications, Applications and Sourcing from India
Specialized nuts designed to resist loosening under vibration. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Eye Nuts: Specifications, Applications and Sourcing from India
Ring-shaped nuts for lifting and anchoring applications. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Dome Nuts: Specifications, Applications and Sourcing from India
Decorative nuts with a rounded cap for a finished appearance. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.
Washers: Specifications, Applications and Sourcing from India
Flat discs used to distribute load and prevent loosening. Standards, materials, sizes and finishes available, and how to source them from GRMB EXPORTERS.