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DIN 934 Hex Nut – Brass

DIN 934 Hex Nut — Brass (HPb56-4)

FULLERKREG DIN 934 Hexagon Nuts in brass (HPb56-4) are precision-machined to the full dimensional requirements of DIN 934 / ISO 4032. With a natural (as-machined) finish and thorough cleaning process, these brass hex nuts offer excellent electrical conductivity, inherent corrosion resistance, and outstanding machinability — making them the preferred choice for electrical, plumbing, instrumentation, and decorative fastening applications.

  • Material: Brass HPb56-4 (Lead Brass / 黄铜 HPb56-4)
  • Surface Treatment: Natural Finish & Cleaned (本色 / 清洗)
  • Standard: DIN 934 / ISO 4032
  • Thread: Metric Coarse (ISO 68-1)
  • Size Range: M1.6 – M24
  • Drive Type: Hexagon (6-sided)

Dimensional Data — DIN 934 Hex Nut Brass HPb56-4

All dimensions in millimeters (mm). Tolerances per DIN 934 / ISO 4032. Single-piece weight (单重) is theoretical reference value based on brass density (8.50 g/cm³).

Thread
d		 Pitch
p (mm)		 Width Across Flats
s (mm)		 Width Across Corners
e (mm)		 Nut Height
m (mm)		 单重
(g/pc)
M1.6 0.35 3.20 3.70 1.30 0.07
M2 0.40 4.00 4.62 1.60 0.15
M2.5 0.45 5.00 5.77 2.00 0.29
M3 0.50 5.50 6.35 2.40 0.40
M3.5 0.60 6.00 6.93 2.80 0.59
M4 0.70 7.00 8.08 3.20 0.89
M5 0.80 8.00 9.24 4.00 1.71
M6 1.00 10.00 11.55 5.00 3.31
M8 1.25 13.00 15.01 6.50 7.25
M10 1.50 17.00 19.64 8.00 14.40
M12 1.75 19.00 21.94 10.00 23.50
M14 2.00 22.00 25.40 11.00 37.30
M16 2.00 24.00 27.71 13.00 55.40
M18 2.50 27.00 31.18 15.00 85.20
M20 2.50 30.00 34.64 16.00 115.20
M22 2.50 32.00 36.95 18.00 157.80
M24 3.00 36.00 41.57 19.00 209.20

Selection Guide — DIN 934 vs. Related Hex Nut Standards

Standard Profile Height Chamfer Typical Use
DIN 934 / ISO 4032 Standard hex Normal (≈0.8d) Both faces General fastening — most common
DIN 439 / ISO 4035 Thin hex Low (≈0.5d) Both faces Jam nut / lock nut applications
DIN 985 / ISO 10511 Nylon insert lock nut Higher One face Vibration / reusable locking
DIN 936 Hexagon thin nut Very low (≈0.4d) Both faces Adjustment / fine-pitch applications

Brass vs. Stainless Steel — Which Material Should You Choose?

Property Brass HPb56-4 A2 Stainless (SUS304) A4 Stainless (SUS316)
Density (g/cm³) 8.50 7.93 7.98
Electrical Conductivity Excellent Poor Poor
Machinability Excellent Moderate Moderate
Corrosion Resistance Good (non-marine) Very Good Excellent
Magnetic No No No
Antimicrobial Yes (Cu content) No No
Appearance Golden / Decorative Silver Silver
Typical Applications Electrical, plumbing, instruments, decorative General outdoor Marine, chemical

Standard Specification

FULLERKREG DIN 934 brass hex nuts are manufactured to the full dimensional requirements of DIN 934 / ISO 4032 using HPb56-4 free-cutting lead brass. Key specification points:

  • Thread tolerance: 6H per ISO 965-1
  • Material standard: GB/T 5231 HPb56-4 (equivalent to CuZn42Pb2 / CW608N)
  • Tensile strength: ≥ 390 MPa
  • Hardness: 80–120 HV
  • Dimensional tolerance: Grade A for M1.6–M16; Grade B for M18–M24
  • Surface: Natural as-machined, thoroughly cleaned; no plating or coating
  • RoHS: Lead content within exemption limits per RoHS Directive 2011/65/EU Annex III

Mechanical Properties — Brass HPb56-4

Property Value Standard
Min. Tensile Strength (Rm) ≥ 390 MPa GB/T 5231
Min. Yield Strength (Rp0.2) ≥ 150 MPa GB/T 5231
Hardness 80 – 120 HV GB/T 5231
Elongation at Break ≥ 16% GB/T 5231
Density 8.50 g/cm³ —
Electrical Conductivity ~15% IACS —
Operating Temperature -40°C to +150°C —

Chemical Composition — Brass HPb56-4 (GB/T 5231)

Element Cu (Copper) Pb (Lead) Fe (Iron) Zn (Zinc)
HPb56-4 54.0–58.0% 3.5–4.5% ≤0.50% Remainder

Typical Applications

  • ⚡ Electrical & Electronics — Terminal blocks, switchgear, connectors, grounding assemblies
  • 🚧 Plumbing & HVAC — Pipe fittings, valve bodies, water meter assemblies
  • 🔬 Instrumentation — Precision instruments, sensors, measurement equipment
  • 🎨 Decorative & Furniture — Architectural hardware, furniture fittings, lighting fixtures
  • 🧰 General Engineering — Non-magnetic assemblies, marine interior fittings, medical devices

Product Gallery — DIN 934 Hex Nut Brass

       

Why Choose FULLERKREG?

  • 🏭 Direct Manufacturer — No middlemen; factory-direct pricing on all standard and custom sizes
  • 📐 Strict Dimensional Control — 100% thread gauge inspection; CMM verification on critical dimensions
  • 🔬 Material Traceability — Full mill certificates (MTC) available; HPb56-4 composition verified per batch
  • 📦 Flexible MOQ & Packaging — Bulk bags, small boxes, or custom packaging; MOQ from 100 pcs
  • 🌍 Global Shipping — Export experience to 50+ countries; DDP/FOB/CIF terms available
  • ⚡ Fast Lead Times — Standard sizes in stock; custom sizes within 15–25 business days
  • 📋 Full Documentation — CoC, MTC, RoHS compliance documents on request
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