Standard Catalogue · DIN / ISO / ANSI
Brass Nuts Manufacturer
CW614N (CuZn39Pb3) · M2 to M36 · 15 DIN/ISO standards + ANSI B18
Nickel · Zinc · Tin plating · Custom nuts to your drawing
All nut types above are available in UNC/UNF inch thread to ASME B18.2.2, B18.11 and B18.11.2.
| Standard | Type | Size Range | Key Feature | Typical Application |
|---|---|---|---|---|
| DIN 934 / ISO 4032 | Hex Nut (Style 1) | M2–M24 | Standard height, coarse | General fastening — most common |
| ISO 4033 | High Hex (Style 2) | M2–M24 | 15–20% taller | Higher thread engagement |
| ISO 8673 | Hex Nut Fine Pitch | M8×1–M24×2 | Fine thread | Automotive, hydraulic, instruments |
| DIN 439 / ISO 4035 | Thin Hex, Chamfered | M2–M24 | One chamfered face | Lock nut, thin sections |
| DIN 936 | Thin Hex, Flat (Jam) | M4–M36 | Both faces flat | Jam nut, compact assemblies |
| DIN 6330 | Tall Hex Nut | M6–M24 | Height ≥ 1.5× diam. | High-load, precision bolt joints |
| DIN 6923 / ISO 4161 | Hex Flange Nut | M5–M16 | Integral flange / washer | Plastic, aluminium housings |
| DIN 6334 | Coupling / Long Nut | M4–M16 | 3× height, through-thread | Rod joining, standoffs, levelling |
| DIN 557 | Square Nut | M3–M20 | 4 flat faces, wide bearing | T-slots, woodworking, structural |
| DIN 935 / ISO 7035 | Castle / Slotted Nut | M6–M30 | Castellated for cotter pin | Safety-critical: bearings, steering |
| DIN 917 | Cap Nut (Low) | M4–M16 | Flat dome, blind thread | Bolt end protection, plumbing |
| DIN 1587 | Domed Cap (Acorn) | M4–M16 | Rounded dome, blind thread | Decorative, furniture, fittings |
| DIN 546 | Round Slotted Nut | M6–M52 | Round body, pin spanner | Bearing housings, instruments |
| DIN 466 | Knurled Thumb Nut | M3–M16 | Knurled cylinder, shouldered | Electronics, control panels |
| DIN 467 | Flat Knurled Nut | M2–M12 | Flat disc, knurled edge | Medical, instruments, optics |
| ASME B18.2.2 / B18.11 | ANSI Inch Series (all) | #4-40–2½" UNC | UNC/UNF thread | North American inch-standard assemblies |
All dimensions in millimetres. Thread tolerance 6H. Per DIN 934 / ISO 4032. Material: CW614N (CuZn39Pb3).
| Thread (d) | Pitch (coarse) | A/F width s | Across corners e | Height m (nom) | Height m (min–max) |
|---|---|---|---|---|---|
| M2 | 0.40 | 4.0 | 4.32 | 1.6 | 1.35–1.75 |
| M2.5 | 0.45 | 5.0 | 5.45 | 2.0 | 1.75–2.25 |
| M3 | 0.50 | 5.5 | 6.01 | 2.4 | 2.15–2.65 |
| M4 | 0.70 | 7.0 | 7.66 | 3.2 | 2.90–3.50 |
| M5 | 0.80 | 8.0 | 8.79 | 4.0 | 3.70–4.30 |
| M6 | 1.00 | 10.0 | 11.05 | 5.0 | 4.70–5.30 |
| M8 | 1.25 | 13.0 | 14.38 | 6.5 | 6.14–6.86 |
| M10 | 1.50 | 17.0 | 18.90 | 8.0 | 7.64–8.36 |
| M12 | 1.75 | 19.0 | 21.10 | 10.0 | 9.64–10.36 |
| M14 | 2.00 | 22.0 | 24.49 | 11.0 | 10.57–11.43 |
| M16 | 2.00 | 24.0 | 26.75 | 13.0 | 12.57–13.43 |
| M20 | 2.50 | 30.0 | 33.53 | 16.0 | 15.57–16.43 |
| M24 | 3.00 | 36.0 | 40.23 | 19.0 | 18.48–19.52 |
Source: DIN 934:2000 / ISO 4032:2012. Certified dimension drawings supplied with order on request.
American finished hex nuts, dimensions in inches. UNC coarse shown; UNF fine thread available. Width across flats per ASME B18.2.2 / B18.6.3; thickness and tolerance to the same standards. Material: CW614N (CuZn39Pb3).
| Thread | Threads/in (UNC) | A/F width F (in) | Across corners (in) | Series |
|---|---|---|---|---|
| #4-40 | 40 | 1/4 (0.250) | 0.289 | UNC / UNF |
| #6-32 | 32 | 5/16 (0.3125) | 0.361 | UNC / UNF |
| #8-32 | 32 | 11/32 (0.34375) | 0.397 | UNC / UNF |
| #10-24 | 24 | 3/8 (0.375) | 0.433 | UNC / UNF |
| 1/4-20 | 20 | 7/16 (0.4375) | 0.505 | UNC / UNF |
| 5/16-18 | 18 | 1/2 (0.500) | 0.577 | UNC / UNF |
| 3/8-16 | 16 | 9/16 (0.5625) | 0.650 | UNC / UNF |
| 1/2-13 | 13 | 3/4 (0.750) | 0.866 | UNC / UNF |
| 5/8-11 | 11 | 15/16 (0.9375) | 1.083 | UNC / UNF |
| 3/4-10 | 10 | 1-1/8 (1.125) | 1.299 | UNC / UNF |
Source: ASME B18.2.2 (hex nuts) and ASME B18.6.3 (machine-screw nuts). Across-corners is the geometric maximum (F × 1.1547). Heavy-pattern, jam, castle and BSW/BSF inch nuts machined to order. Certified dimension drawings supplied on request.
Plating available on all nut types
Natural brass finish supplied as standard. Electroplated finishes available on request — specify at quotation stage with required thickness and applicable standard.
Special thread, unusual hex size, non-standard height, blind thread depth, or an entirely unique geometry — Brassland manufactures custom brass nuts directly to your specification.
PDF, DXF, DWG, or a dimensioned hand sketch. Quote back within 24 hours.
Metric coarse/fine, BSP, UNC, UNF, BSPT, left-hand — or fully custom.
First-article samples approved before production. Dimensional reports and material certs included.
Prototype batches to full container loads. CW614N standard — other alloys on request.
Email your drawing and requirements — we respond within 24 hours.
info [at] brassland [dot] comBrassland has machined precision brass components in Jamnagar, Gujarat since 2000. That is now 230+ people across 60,000+ sq ft, running 79+ CNC machines — including 28+ Swiss-type sliding-head lathes from Tsugami and Star. Nuts are bar-fed, turned, drilled, milled and thread-cut in our own shop. Where a blank is forged rather than turned from bar, the forging is produced at a qualified partner forge and finish-machined here; there is no in-house casting.
We supply components to OEMs, fastener distributors and assembly houses — we do not build or sell finished valves or assemblies.
Terms are agreed at quotation and printed on the proforma invoice. Tell us the destination port or door address and the Incoterm you work to, and the quotation comes back landed on that basis.
| Item | What we offer | Notes |
|---|---|---|
| Incoterms 2020 | DDP · FOB · CIF | EXW and DAP on request |
| Ports of loading | Mundra · Pipavav · Kandla · Nhava Sheva | Sea and air freight; consolidated or full container |
| HS codes | 7415 · 7412 · 7419 | Applied per part and confirmed on the invoice |
| Markets served | 40+ countries | Star Export House, Government of India |
| Lead time | 3–5 weeks from approved drawing | Prototypes and first-article samples sooner |
Packaging, labelling, bar-coding and carton counts are set at quotation stage. Call +91 288 273 0982 or see shipping & logistics FAQ.
Give us the nut standard or a drawing, thread size and pitch, alloy, plating, annual quantity, the certificates you need and the destination. Quotations typically go back within 24 hours.
The catalogue covers 15 DIN/ISO types plus the ANSI B18 inch series — hex (DIN 934), thin, tall, flange, cap, dome, castle, square, round slotted, coupling and knurled nuts. Custom nuts are machined to drawing alongside the standard range.
Standard coverage runs M2 to M36 metric, with ANSI inch equivalents in the B18 series. Nuts are machined from CW614N (CuZn39Pb3) free-cutting brass per EN 12164; DZR and lead-free grades are available where the application requires them.
Yes. Every nut type is available in American inch threads — UNC coarse and UNF fine — from #4-40 up to 2½″, machined to ASME B18.2.2 and B18.6.3 (with B18.11 small-pattern). BSW/BSF, BSP, NPT and left-hand inch threads are made to order. See the inch dimension table above for widths across flats.
Natural brass, nickel, zinc and tin plating are standard options. Plating choice depends on the mating hardware and the corrosion environment — see the surface finishes guide; we’ll advise at quotation stage.
Yes — all production is made to order. Send your drawing or sample with thread size, quantity, plating and certificate requirements and we respond within 24 hours with pricing and lead time.
There is no strict MOQ. First orders typically start from around 1,000 pieces per size and type, which is where setup and tooling are covered sensibly — prototype and sample quantities are run below that before production is released. High-volume OEM schedules are produced on the same lines, so a part that starts at sample quantity does not have to move elsewhere when it scales.
Production lead time is 3–5 weeks from an approved drawing. Prototypes and first-article samples are made sooner. Quotations typically go back within 24 hours once we have the nut standard or drawing, thread size and pitch, alloy, plating, quantity and destination — send them here.
Every shipment carries an EN 10204 3.1 mill certificate — Type 3.2 on request — together with a Certificate of Conformity and a dimensional inspection report against the controlled characteristics on your drawing. Brassland is certified to ISO 9001:2015, ISO 14001:2015 and ISO 45001:2018 by DQS, and parts are supplied RoHS and REACH compliant with SVHC disclosure on request.
Incoterms 2020 DDP, FOB and CIF are standard; EXW and DAP on request. Shipments load through Mundra, Pipavav, Kandla or Nhava Sheva. HS codes 7415, 7412 and 7419 apply depending on the part and are confirmed on the invoice. Brassland exports to more than 40 countries and holds Star Export House status from the Government of India.
Specify standard, thread size, quantity, plating and certificate requirements. Standard or custom — we respond within 24 hours.
Brassland manufactures to EN, ISO and DIN specifications below. Mill certificates per EN 10204 Type 3.1 standard; Type 3.2 available on request.
You may also need brass knurled thumb screws DIN 464/465/653 to pair with the DIN 466/467 thumb nuts, hex standoffs or set screws. Every standard is indexed in the Standards Directory.
Last reviewed: June 2026. All Brassland products are made to order — confirm grade, surface finish, plating and packaging requirements at quotation stage.