Frequently Asked Questions
What grade should I use for structural applications?
For structural bolts, Grade 5 (SAE) or A325 are common for general construction. Grade 8 (SAE) or A490 are used for high-strength structural connections. Stainless steel (A2 or A4) is used where corrosion resistance is critical.
What is the difference between zinc-plated and hot-dip galvanized fasteners?
Zinc plating (electroplating) provides a thin, uniform coating suitable for indoor or mildly corrosive environments. Hot-dip galvanizing applies a much thicker zinc coating and is recommended for outdoor, marine, or high-moisture applications.
What does ASTM or SAE grade mean on a fastener?
These designations indicate the mechanical properties of a fastener — primarily tensile strength, yield strength, and proof load. SAE grades (Grade 2, 5, 8) are common in North America. ASTM specifications (A307, A325, A490) are used in structural engineering.
Do you stock metric fasteners?
Yes. We stock a wide range of metric fasteners including metric hex bolts, socket head cap screws, metric nuts, and washers in standard metric property classes (8.8, 10.9, 12.9).
Can I order in bulk or large quantities?
Absolutely. We supply bulk orders for construction projects, manufacturing facilities, and industrial operations. Contact us for volume pricing and lead times on large orders.
What coatings are available for fasteners?
Common coatings include zinc electroplating, hot-dip galvanizing, zinc flake (Geomet/Dacromet), black oxide, and stainless steel for corrosion resistance. We can source fasteners with specific coating requirements upon request.
Have a specific technical question? Call us at (604) 534-5456 — our team is happy to help.