Our metric thread MDIN hex nuts, similar to DIN 34814 (DIN 934/555) / ISO 4032, are manufactured in various engineering materials. that favor properties such as chemical, mechanical, oxidation resistance, etc.

They are available in PA66 (Polyamide 66 “Nylon”), PP (Polypropylene), POM (Acetal Resin), PVDF b> (Polyvinylidene Fluoride), PEEK (Polyetheretherketone) and PAGF (Polyamide with the possibility of up to 50% fiberglass).

The measurements of M2, M2.5 and M3.5 are supplied only in PA66.

  RAL colors manufactured 

  Possible to get dyed colors 

Drawing PDF:  
UL94:   V2  
IP:   
RoHS:    
Measures expressed in: Millimeters
Video:  


Reference
Metric Thread
F
H
Similar DIN
Simliar ISO
 
 
 
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Info.
03100300610 M2 3,90 to 4,00 1,15 to 1,25 DIN 34814
(DIN 934/555)
ISO 4032  
03100300611 M2,5 4,90 a 5,10 1,80 a 1,90 DIN 34814
(DIN 934/555)
ISO 4032  
03100300612 M3 5,30 to 6,00 2,25 to 2,45 DIN 34814
(DIN 934/555)
ISO 4032  
04103000202 M3,5 6,90 2,70 DIN 34814
(DIN 934/555)
ISO 4032  
03100300613 M4 6,80 to 7,00 2,90 to 3,20 DIN 34814
(DIN 934/555)
ISO 4032  
03100300614 M5 7,85 to 7,95 4,05 to 4,65 DIN 34814
(DIN 934/555)
ISO 4032  
03100300615 M6 9,90 to 10,05 5,00 to 5,60 DIN 34814
(DIN 934/555)
ISO 4032  
03100300616 M8 12,80 to 12,85 6,40 to 6,70 DIN 34814
(DIN 934/555)
ISO 4032  
03100300617 M10 15,80 to 17,00 8,00 to 8,50 DIN 34814
(DIN 934/555)
ISO 4032  
03100300618 M12 17,95 a 19,00 10,10 a 10,55 DIN 34814
(DIN 934/555)
ISO 4032  
03100300619 M14 20,00 a 21,00 11,10 a 12,80 DIN 34814
(DIN 934/555)
ISO 4032  
03100300620 M16 23,65 a 24,00 12,80 a 14,80 DIN 34814
(DIN 934/555)
ISO 4032  
03800200512 M18 27,10 14,60 a 15,00 DIN 34814
(DIN 934/555)
ISO 4032  
03100300621 M20 29,20 a 30,00 16,40 a 18,00 DIN 34814
(DIN 934/555)
ISO 4032  
03100300622 M24 35,00 a 36,00 19,00 a 21,50 DIN 34814
(DIN 934/555)
ISO 4032  

If you are interested in our family MDIN, you may be interested in these families as well:

<p>Screws made of <strong>PA66</strong> and <strong>PA66GF30</strong>, high-quality technical materials that combine excellent mechanical strength, good thermal stability, and suitable chemical resistance. They offer a lightweight and reliable alternative to metal screws in a wide range of industrial applications.</p>

<p><strong>Main properties</strong><br>
• <strong>Thermal:</strong> PA66 up to 100 °C, PA66GF30 up to 120 °C continuous use<br>
• <strong>Mechanical:</strong> high strength, improved stiffness with glass fiber, good dimensional stability<br>
• <strong>Chemical:</strong> good resistance to oils, greases, hydrocarbons and common solvents</p>

<p><strong>Advantages over metal screws</strong><br>
• Lower weight without compromising strength<br>
• Corrosion resistant, even in aggressive environments<br>
• Electrically and thermally insulating<br>
• Non-magnetic, non-conductive and spark-free<br>
• Absorb vibrations and reduce noise<br>
• Less maintenance and longer durability under harsh conditions</p>

<p>Ideal for sectors such as electrical, electronics, automotive, construction, HVAC and general industry.</p>   <p>Screws made of <strong>PA66</strong> and <strong>PA66GF30</strong>, high-quality technical materials that combine excellent mechanical strength, good thermal stability, and suitable chemical resistance. They offer a lightweight and reliable alternative to metal screws in a wide range of industrial applications.</p>

<p><strong>Main properties</strong><br>
• <strong>Thermal:</strong> PA66 up to 100 °C, PA66GF30 up to 120 °C continuous use<br>
• <strong>Mechanical:</strong> high strength, improved stiffness with glass fiber, good dimensional stability<br>
• <strong>Chemical:</strong> good resistance to oils, greases, hydrocarbons and common solvents</p>

<p><strong>Advantages over metal screws</strong><br>
• Lower weight without compromising strength<br>
• Corrosion resistant, even in aggressive environments<br>
• Electrically and thermally insulating<br>
• Non-magnetic, non-conductive and spark-free<br>
• Absorb vibrations and reduce noise<br>
• Less maintenance and longer durability under harsh conditions</p>

<p>Ideal for sectors such as electrical, electronics, automotive, construction, HVAC and general industry.</p>   <p>Our <strong>TU</strong> washers are available in <strong>LDPE</strong>, <strong>PA6</strong>, <strong>PA66</strong>, and <strong>PA6GF30</strong>, offering lightweight, insulating, and durable solutions for various industrial sectors.</p>
<h4>Materials and properties</h4>
<ul style='margin-left:20px'>
  <li><strong>LDPE:</strong> up to 70 °C, flexible, insulating, resistant to mild agents.</li>
  <li><strong>PA6:</strong> up to 100 °C, good strength and thermal balance.</li>
  <li><strong>PA66:</strong> greater rigidity and dimensional stability.</li>
  <li><strong>PA6GF30:</strong> 30% glass fiber reinforced, excellent stiffness and heat resistance up to 130 °C.</li>
</ul>
<p>All materials provide good electrical insulation and chemical resistance to oils, greases, and common solvents. Ideal for electrical, mechanical, and insulation applications.</p>   Our MTH <b>hex</b> nuts with metric thread, similar to <b>DIN 2510</b>, made of <b>PA66</b> (Polyamide 66 “Nylon”), offer excellent resistance to chemical products (see technical sheet), a high level of dielectric strength, do not oxidize and prevent damage caused by overvoltage   <p>Our <b>MTHA hexagonal nut</b> with integrated flange, similar to DIN 6923, is designed for technical fastenings requiring an enlarged bearing surface without the need for an additional washer.</p>

<p>The integrated collar increases the contact area with the mounting surface, reducing point pressure and improving assembly stability against vibrations or support deformation. Manufactured in <b>PA66</b>, it combines mechanical strength, light weight and electrical insulation.</p>

<p>· <b>Geometry:</b> Hexagonal with flange<br>
· <b>Main function:</b> Fastening with extended load distribution<br>
· <b>Material:</b> PA66<br>
· <b>Technical advantage:</b> Replaces washer and improves seating stability</p>

<p>Suitable for electrical and mechanical applications where surface protection and weight reduction are required.</p>   <p>Our <b>LBK protective cap</b> is designed to cover hexagon screw heads according to DIN / ISO / ANSI standards, provided the wrench size (SW) is respected.</p>

<p>It provides protection against impacts and dirt while improving the visual finish of the fastening.</p>

<p>· <b>Material:</b> LDPE (Low Density Polyethylene)<br>
· <b>Standards:</b> DIN 933 / ISO 4017, DIN 931 / ISO 4014, DIN 960 / ISO 8765, DIN 961 / ISO 8676, ANSI B18.2.1<br>
· <b>Standard colours:</b> RAL9010, RAL9005, RAL7001</p>

<p><i>The parts can be supplied with a plastic metallization process that provides a bright metallic finish. Manufacturing in RAL colours is also available on request and minimum order quantity. Please consult our sales department for conditions.</i></p>   Our protection cap fits tightly, by means of the special rib around its mouth, assuring protection against corrosion or damage. It can protect with a more tight seal different elements and combinations, like 2 nuts and a bolt.  



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