Grade 4–10 Carbon & Stainless Steel Hex Nuts – DIN 934 Metric Hexagon Nuts, M3–M64 for Heavy Industry

Precise thread geometry

• – Tapped using high-performance carbide tools to maintain consistent 6H thread tolerance for smooth, reliable assembly

Wide grade selection

• – Available from Grade 4 and 6 for general assembly to high-tensile Grade 8 and 10 for structural connections

Material versatility

• – Full range of carbon steel and stainless steel (304/316) to suit any environmental condition

Double-chamfered edges

• – Chamfered on both sides for easier tool engagement and finished appearance from either direction

Fatigue resistance

• – Specialized heat treatment for high-grade nuts ensures resistance to thread stripping under repeated high-torque applications

Carbon steel grades

• : 1008, 1035, 1045, and 35CrMo for various strength requirements

Stainless steel

• : SUS304 for oxidation resistance; SUS316 for superior acid and alkali resistance

Zinc plating (Cr3+)

• : Environmentally friendly bright zinc for indoor corrosion protection

Hot-dip galvanizing

• : Over-tapped threads to accommodate thicker HDG coating on mating bolts

Yellow zinc

• : Preferred for agricultural and heavy equipment applications

Nickel plating

• : For decorative or electrical conductivity requirements

PTFE / Xylan coating

• : For oil & gas applications requiring low friction and extreme chemical resistance

Heavy machinery assembly

• – Securing components in hydraulic presses, engines, and gearboxes

Infrastructure projects

• – Paired with threaded rods and bolts in bridge construction and tunneling

Automotive industry

• – Suspension, wheel hubs, and frame assembly (IATF 16949 compliant)

Solar & wind energy

• – Fastening mounting brackets and turbine housing bolts

Electronics & appliances

• – Small-scale stainless steel nuts for precision instrument assembly

Furniture manufacturing

• – Bulk carbon steel nuts for structural jointing in commercial furniture

Located in 6th of October City, Giza, Pyramid Hardware operates 50+ machines producing 70+ fastener varieties with a 98.5% OTD rate. IATF 16949 and ISO 9001:2015 certified, we provide factory-direct pricing with 15–30% savings. Exports to 30+ countries.

Packing

• : Standard 25kg cartons or 50kg bags, palletized for sea freight

Ports

• : Alexandria / Port Said / Damietta, Egypt

Incoterms

• : FOB / CIF / CFR

Lead time

• : Samples 10–15 days; bulk 15–25 working days

Q1: What nut grade should I use with a Grade 8.8 bolt?

For a Grade 8.8 bolt, use a Grade 8 nut to ensure the nut does not strip before the bolt reaches its proof load.

Q2: Do you offer fine thread hex nuts?

Yes, we stock and manufacture a wide range of metric fine threads (e.g., M12×1.25, M12×1.5).

Q3: Are your nuts compatible with Hot-Dip Galvanized bolts?

Yes — we provide over-tapped nuts specifically designed to fit the thicker coating of HDG bolts.

Q4: What is your MOQ for hex nuts?

Typically 500–1,000 pcs per size for stocked items; flexible for custom production runs.

Q5: Do you accept third-party quality inspections?

Yes, we welcome SGS, BV, and TÜV inspections to ensure compliance with your project specifications.