Hot dipped galvanized thin (jam / half) nut · Low duty · DIN 439 · UAE stock
Hot dipped galvanized low duty thin nut (jam or half nut) that is about half the height of a standard hex nut. Used as a locking jam nut against a full nut, or where space is tight and full load is not required. Made to DIN 439, from M6 up to M36.
Made to thin nut standard
Locks against a full nut
Ready inventory, UAE & GCC delivery
Project quantities at best price
A HDG low duty nut (thin, jam or half nut) is a hot dipped galvanized hex nut about half the thickness of a standard nut. It is commonly run down and tightened against a full nut to jam (lock) the assembly, or used where clearance is limited and full clamp load is not needed. Made to DIN 439. The thick hot-dip zinc coating protects against corrosion outdoors and in coastal or marine conditions, and it is oversize-tapped to fit HDG bolts.
Hamza Fasteners supplies hot dipped galvanized thin nuts from M6 to M36 for jam-nut locking, adjustment assemblies, valves, linkages and low-load fixing. Buy jam nuts at the best price in Dubai from a trusted hot dipped galvanized fastener supplier serving the UAE, Saudi Arabia, Qatar, Kuwait, Oman and East Africa.
Dimension reference to DIN 439 for hot dipped galvanized thin (jam) nuts. Confirm exact quantities for your order with our team.
This datasheet shows one representative size for reference only. The HDG Low Duty Nut is supplied in the full range of sizes and finishes — not a single option. Tell us what you need and we will confirm exact availability, finish and price.
| Thread (d) | Pitch (mm) | Width Flats (s) | Height (m) |
|---|---|---|---|
| M6 | 1.0 | 10 | 3.2 |
| M8 | 1.25 | 13 | 4.0 |
| M10 | 1.5 | 17 | 5.0 |
| M12 | 1.75 | 19 | 6.0 |
| M16 | 2.0 | 24 | 8.0 |
| M20 | 2.5 | 30 | 10.0 |
| M24 | 3.0 | 36 | 12.0 |
| M30 | 3.5 | 46 | 15.0 |
| M36 | 4.0 | 55 | 18.0 |
| Product Type | Thin Nut (Jam / Half Nut) |
|---|---|
| Standard | DIN 439 |
| Material | Carbon Steel |
| Finish | Hot-Dip Galvanized |
| Height | ≈ half a standard nut |
| Size Range | M6 – M36 |
Locks against a full nut
Set positions & stops
Tight-clearance fixing
Where space is limited
Secondary nuts
Fine adjustment
Stocked in Deira, Dubai and delivered fast across the region. Wherever you are building, we supply in stock and project quantities.
Hamza Fasteners is a trusted HDG thin nut supplier in Dubai and across the United Arab Emirates — Abu Dhabi, Sharjah and Ajman — with regular export supply to Saudi Arabia (Riyadh, Jeddah, Dammam), Qatar (Doha), Kuwait City, Oman (Muscat) and key East and West African markets including Tanzania (Dar es Salaam), Kenya (Nairobi and Mombasa), Nigeria (Lagos) and Ethiopia (Addis Ababa). Looking for a "HDG thin nut supplier near me" or the best jam nut price in your city? Send us your size list for a same-day quote.
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