Fasteners, Bolts & Nuts
Bolts, nuts, washers, and general hardware fasteners cover the commercial and light-structural fixing that runs across every trade on a project, sized and graded for the job rather than engineered to one connection calculation. NLS sources hex bolts and nuts to ISO 898-1 and ISO 898-2 property classes, plus ASTM A325 grade hardware, from M6 to M30, zinc-plated, galvanized, or stainless.
Most of the fasteners on a project aren't the calculated structural bolts holding a primary steel connection together, they're the hex bolts, nuts, washers, and machine screws that fix cladding, brackets, equipment, cable tray, ductwork, and a hundred other general connections. That volume of hardware needs a broad, well-graded catalog more than it needs a single engineered spec, and picking the wrong grade or coating for the exposure is the more common failure than picking the wrong size.
NLS sources hex bolts and nuts across the standard property classes set by ISO 898-1 (bolts) and ISO 898-2 (nuts), commonly grade 4.6 for light general fixing, 8.8 for most structural and mechanical fixing, and 10.9 where higher clamping load is needed. ASTM A325 grade bolts cover projects specified to American structural practice. Sizes run M6 to M30 (roughly 1/4 inch to 1.25 inch), in a coating range matched to exposure: zinc electroplating for indoor and low-corrosion use, hot-dip galvanizing for outdoor and industrial exposure, black oxide for a low-cost interior finish, and stainless steel (A2/A4) where corrosion resistance has to hold up over years, not months.
On Saudi projects, this hardware fixes cladding and roof sheeting, cable tray and conduit supports, HVAC ductwork hangers, equipment brackets, and general mechanical and electrical fixing across a building. It's ordered in volume and against a bill of quantities more often than a single drawing callout, so grade and coating consistency across a large order matters as much as unit price.
NLS quotes bolts, nuts, and washers against size, grade, coating, and quantity, and returns a priced quote in USD. Common grade 8.8 hex bolts in standard sizes and coatings typically source fastest, while stainless steel, oversized, or non-standard length items more often carry a supplier-confirmed lead time.
Specifications
- ✓Property classes: ISO 898-1 (bolts, grades 4.6, 8.8, 10.9), ISO 898-2 (nuts)
- ✓American equivalent: ASTM A325 grade hardware
- ✓Size range: M6 to M30
- ✓Coatings: zinc-plated, hot-dip galvanized, black oxide, stainless steel (A2/A4)
- ✓Product range: hex bolts, nuts, washers, machine screws
- ✓Typical use: cladding fixing, cable tray and conduit supports, HVAC hangers, general MEP fixing
Frequently Asked Questions
What do bolt grades like 4.6, 8.8, and 10.9 mean?+
They're ISO 898-1 property classes describing tensile and yield strength, roughly, the first number times 100 gives tensile strength in MPa, and the two numbers together give the yield-to-tensile ratio. Grade 8.8 covers most general structural and mechanical fixing; 10.9 is used where higher clamping force is needed.
Which coating should I choose, zinc-plated or hot-dip galvanized?+
Zinc plating suits indoor, low-corrosion fixing at lower cost. Hot-dip galvanizing carries a much thicker coating and holds up outdoors or in industrial exposure. Stainless steel is the choice where the fastener has to resist corrosion over the long term regardless of coating thickness.
Can NLS supply bolts and nuts in bulk against a bill of quantities?+
Yes, this is a common way this hardware is ordered, a bill of quantities or a size/grade/coating breakdown across a project rather than a single drawing callout, and NLS prices and packs accordingly.