Uni5588 Hex Nuts
Product: Hexagonal Nuts
Standard: UNI5587
Raw material: Q195,SWRCH35K/45K,40CR,42CRMO,etc.
Surface: Plain,zinc plated,black oxide,H.D.G,etc.
Specification Range: M1.6-M64
Property Class:6,8,10,12
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Product Introduction
Product: Hexagonal Nuts
Standard: UNI5587
Raw material: Q195,SWRCH35K/45K,40CR,42CRMO,etc.
Surface: Plain,zinc plated,black oxide,H.D.G,etc.
Specification Range: M1.6-M64
Property Class:6,8,10,12
Mechanical Properties
UNI 5588 Hexagon Nuts – Standard, Application, Performance
UNI 5588 is an Italian standard for Style 1 hexagon nuts, equivalent to DIN 934 and ISO 4032. It is a general‑purpose medium‑thickness hexagon nut widely used in industry.
Standard Overview
• Standard number: UNI 5588 (1968 edition, currently equivalent to DIN EN 24032)
• Type: Style 1 hexagon nuts
• Thread: Metric coarse/fine pitch, tolerance 6H
• Size range: M1.6 ~ M64
• Product grades:
◦ Grade A: d ≤ 16 mm, for high precision and surface finish requirements
◦ Grade B: d > 16 mm, for general mechanical structures
• Equivalent standards: DIN 934, ISO 4032, GB 6172, CSN 021401, PN 8214
Main Applications Used with bolts, studs and screws to achieve fastening connections.
Suitable for:
• General machinery and equipment assembly
• Pumps, valves, piping, petrochemical industry
• Wind power, water conservancy, rail transit
• Shipbuilding, mining, textile, medical devices
• Electronics and electrical applications (brass/stainless steel)
Performance Features
• High versatility:
Hexagonal shape for easy wrench operation and installation
• Reliable strength:
Medium‑thickness type (m≈0.8d), good vibration and loosening resistance
• Wide compatibility:
Full range from M1.6 to M64, various materials and grades for different working conditions
• Good interchangeability:
Direct interchangeable with DIN 934 and ISO 4032
Main Sales Markets of the Product:Europe, the Middle East and Southeast Asia
Packaging and Logistics
Main packaging materials include: small bags, small boxes, cartons, pallets and iron drums.
Customized packaging is available according to customer requirements.
Flexible bulk ordering plans are provided, and both transportation terms and delivery schedules are negotiable.
Certification and Warranty
We are certified by ISO9001:2015, IATF16949:2016, and other international quality standard certifications.
Long-term quality warranty and comprehensive after-sales service are provided.
Established in 2005, our company has evolved over two decades of continuous development into a leading regional enterprise in the fastener industry with fully automated end-to-end production. With an annual output value exceeding RMB 130 million, our product range covers diverse market segments from mid-range to high-end and is distributed worldwide
Our factory & quipment
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