- Call Us+91 9819454781
- Email Usinquiry@kkfasteners.com
- WhatsApp+91 9819454781
Square thin nuts are low-profile fastening components designed to provide secure locking in confined assemblies where standard hex nuts cannot be accommodated. Manufactured in accordance with DIN 562 and compatible with ISO metric threading systems, these nuts are widely used in electrical panels, machine tooling fixtures, automotive subassemblies, and sheet metal structures. Their square geometry increases surface contact, improving grip stability under vibration and dynamic loads.
Typically produced using stainless steel, carbon steel, or alloy steel grades, square thin nuts deliver reliable performance in both corrosive and high-load environments. The reduced height profile makes them ideal for space-constrained installations without compromising mechanical integrity.
KK Fasteners supplies square thin nuts to OEMs and industrial distributors across global markets, ensuring consistent dimensional accuracy, traceable material certification, and export-grade packaging for critical engineering applications.
| Parameter | Specification |
|---|---|
| Product Type | Square Thin Nut |
| Standard | DIN 562 / ISO Metric |
| Material Options | Stainless Steel 304, Stainless Steel 316, Carbon Steel (Grade 4.8 / 8.8 / 10.9), Alloy Steel |
| Size Range | M3 to M30 |
| Thread Type | Metric Coarse / Fine, UNC / UNF (on request) |
| Shape | Square, Thin Profile (Low Height) |
| Surface Finish | Self Colour, Zinc Plated, Hot Dip Galvanized, Black Oxide, Passivated |
| Hardness | Up to 300–320 HV (depending on grade) |
| Tensile Strength | Up to 800–1000 MPa (depending on material grade) |
| Manufacturing Process | Cold Forged / Precision Machined |
| Standards Compliance | DIN 562, ISO 4035 (equivalent), ASTM A194 (material dependent) |
| Machine Square Thin Nut Dimensions | ||||
|---|---|---|---|---|
| Nut Size |
Nom. Diameter |
Width | Thickness | |
| Across Flats |
Across Corners |
Nom. | ||
| #0 | 0.0600 | 5/32 | 7/32 | 3/64 |
| #1 | 0.0730 | 5/32 | 7/32 | 3/64 |
| #2 | 0.0860 | 3/16 | 1/4 | 1/16 |
| #3 | 0.0990 | 3/16 | 1/4 | 1/16 |
| #4 | 0.1120 | 1/4 | 11/32 | 3/32 |
| #5 | 0.1250 | 5/16 | 27/64 | 7/64 |
| #6 | 0.1380 | 5/16 | 27/64 | 7/64 |
| #8 | 0.1640 | 11/32 | 15/32 | 1/8 |
| #10 | 0.1900 | 3/8 | 33/64 | 1/8 |
| #12 | 0.2160 | 7/16 | 19/32 | 5/32 |
| 1/4 | 0.2500 | 7/16 | 19/32 | 3/16 |
| 5/16 | 0.3125 | 9/16 | 49/64 | 7/32 |
| 3/8 | 0.3750 | 5/8 | 55/64 | 1/4 |
| Size Metric | Weight |
|---|---|
| M3 | 0.5 |
| M4 | 1.0 |
| M5 | 1.4 |
| M6 | 2.4 |
| M7 | 3.0 |
| M8 | 5.1 |
| M10 | 10.6 |
| M12 | 17.2 |
| M14 | 26 |
| M16 | 34 |
| M18 | 45 |
| M20 | 65 |
| M22 | 75 |
| M24 | 100 |
| M27 | 162 |
| M30 | 212 |
| M33 | 317 |
| M36 | 415 |
| M39 | 499 |
| M42 | 628 |
| M45 | 771 |
| M48 | 998 |
Square thin nuts are used in applications where space-saving fastening, vibration resistance, and precise alignment are critical. They are commonly selected for compact mechanical assemblies and structural frameworks.
Square thin nuts are manufactured using precision cold forging or CNC machining processes depending on material grade and dimensional requirements. Cold forging enhances grain structure alignment, improving mechanical strength and fatigue resistance. Post-forming operations include threading, heat treatment (for high-strength grades), and surface finishing.
Quality inspection includes dimensional verification using calibrated gauges, thread fit testing, hardness measurement, and surface finish validation. Batch traceability is maintained through material heat numbers and inspection reports. KK Fasteners implements strict quality control aligned with ISO 9001 practices, ensuring consistent performance across global supply shipments.
Explore our comprehensive range of products, ensuring you find the perfect solution for your specific requirements.
Save money without compromising on quality, thanks to our competitive prices and cost-effective options.
Personalized assistance, prompt responses, and a commitment to meeting your needs, making your purchase process seamless.
Square thin nuts are low-profile fasteners with a square outer shape designed for applications where installation space is limited. Manufactured as per DIN 562 standards, they provide stable locking, good load distribution, and reliable fastening in mechanical and structural assemblies.
They are commonly produced in stainless steel grades such as 304 and 316 for corrosion resistance, carbon steel grades for higher strength applications, and alloy steel for heavy-duty usage. The choice depends on environment, load requirement, and durability needs.
Square thin nuts are primarily manufactured according to DIN 562. They are also compatible with ISO metric threading systems and may comply with ASTM material standards depending on the grade used in production.
These nuts are widely used in electrical panels, automotive fixtures, sheet metal assemblies, industrial machinery, and railway components. Their thin profile makes them ideal for compact spaces where standard nuts cannot be installed.
A reliable supplier should offer certified materials, DIN/ISO compliance, dimensional accuracy, and full traceability. Export capability, quality inspection reports, and engineering support are also essential. Suppliers like KK Fasteners provide globally compliant fastening solutions with documented quality assurance.
Square thin nuts are critical components in compact and precision-driven assemblies where conventional fastening solutions are not feasible. With strict adherence to DIN standards and controlled manufacturing processes, they ensure reliable mechanical performance across industries.
KK Fasteners supports OEMs and industrial buyers with engineered fastening solutions, offering technical assistance, documentation, and export-ready supply chains. For detailed specifications or bulk pricing, connect with the engineering team or request a customized quotation today.
