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Non-Standard Sizes & Threads | OEM Drawing Production | Full Material Traceability
The Special Hex Nut is a custom-engineered fastening solution manufactured to your exact drawings, samples, or functional requirements.Beyond standard DIN/ISO/ANSI hex nuts, our facility produces non-standard sizes, special thread forms, extended heights, and tailored materials for OEM programs in the automotive, agricultural, and heavy-machinery industries.Every special nut is produced under full-process inspection with material traceability, ensuring each batch meets your blueprint tolerances and quality specifications.
Made-to-Drawing Production:
· We manufacture special hex nuts from customer drawings, samples, or target function, covering non-standard dimensions and geometries.
Wide Material Selection:
· Carbon steel, stainless steel, and alloy steel grades available to meet strength, corrosion, and temperature requirements.
Full Thread Range:
· Coarse, fine, and special pitch threads from M3 to M64, including left-hand threads and thread-locking variants.
Multiple Coatings:
· Zinc plating, hot-dip galvanizing, black oxide, Dacromet, and mechanical galvanizing for any environment.
Rigorous Quality Control:
· Dimensional verification, hardness testing, and material certification accompany every production batch.
| Parameter | Details |
| Standard | DIN 934 / ISO 4032 base (or fully custom) |
| Material | Carbon Steel (4/8/10/12 grade), Stainless Steel, Alloy Steel |
| Thread Range | M3 to M64 (coarse, fine, special pitch) |
| Width Across Flats | Standard or custom per drawing |
| Height | Standard, reduced, or extended per drawing |
| Strength Class | Grade 4 / 8 / 10 / 12 or A2-70 / A4-80 |
| Coating | Zinc, Hot-Dip Galvanized, Black Oxide, Dacromet |
| Tolerance | Class 6H / 6G or tighter per specification |
Materials & Surface Finish
Carbon Steel:
· The economical choice for general industrial use, available in grades 4, 8, 10, and 12.
Stainless Steel:
· A2 (304) and A4 (316) for corrosion-resistant and food-grade applications.
Alloy Steel:
· High-strength alloys for automotive and heavy-machinery applications requiring elevated torque capacity.
Surface Coatings:
· Hot-dip galvanizing and Dacromet for severe outdoor and coastal environments.
Automotive OEM:
1. Special nut forms for suspension, chassis, and powertrain assemblies.
Agricultural Machinery:
2. Heavy-duty hex nuts for implements, headers, and structural frames.
Heavy Machinery:
3. Large-diameter special nuts for excavators, cranes, and industrial equipment.
Structural Steel:
4. Custom-height nuts for bolted steel connections and re-usable connections.
Energy Sector:
5. Special nuts for wind towers, solar mounting structures, and power transmission.
OEM Assembly Lines:
6. Low-head or slotted variants designed for automated feeding and tightening systems.
| Feature | Customization Range |
| Dimensions | Non-standard widths across flats, heights, and diameters produced to drawing. |
| Thread Forms | Fine pitch, left-hand, or special thread configurations. |
| Locking Features | Nylon insert (Nylock), deformed thread, or all-metal prevailing torque. |
| Marking | Grade marking, logos, or batch codes stamped on the face. |
| Packaging | Bulk cartons, anti-separation bags, or barcoded retail packs. |
Pyramid Hardware Fasteners, based in Egypt's 6th of October City, is a global leader in fastener manufacturing. Our 15+ years of experience are backed by ISO 9001:2015 and IATF 16949 certifications. We operate 50+ high-speed production machines, allowing us to offer 70+ varieties of fasteners with a 98.5% OTD reliability. Our factory-direct model eliminates middleman costs, providing our international partners with 15-30% savings. We have successfully exported to 30+ countries, meeting the diverse building codes and quality standards of each region.
Main Export Ports:
· Alexandria Port, Port Said Port, and Damietta Port.
Incoterms:
· FOB, CIF, CFR, and DDU.
Lead Times:
· Samples in 10-15 days; Bulk orders in 35-45 working days.
MOQ:
· 5000-10000 pieces per size (custom items quoted individually).
Packaging:
· Standard 25kg bulk cartons, small boxes, or palletized for large industrial orders.
Fast Sampling — Sample delivery in 15 days
Flexible MOQ — Start from 500 pcs
On-Time Delivery — 98.5% on-time rate, OTD guaranteed
Dedicated Export Team — English-speaking sales, familiar with LC/TT
Q: What is the minimum order quantity for custom special hex nuts?
1. A: For non-standard items the typical MOQ is 5,000-10,000 pieces depending on size and complexity; standard sizes may qualify for lower quantities.
Q: Can you produce special nuts from a sample only?
2. A: Yes, we can reverse-engineer a sample and produce matching parts, subject to a sample-based inspection report for approval.
Q: Do you provide material certificates?
3. A: Yes, every batch ships with a mill test report (MTR) and certificate of conformity; third-party inspection by SGS, BV, or TÜV is welcome.
Q: Can special nuts include a nylon locking insert?
4. A: Yes, we offer Nylock inserts in various colors as well as all-metal locking options for high-temperature applications.
Q: What is the lead time for custom production?
5. A: Sample production typically takes 10-15 days and bulk production 15-25 working days after drawing approval.
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