Hexagonal nut
Hexagonal nut is a hexagonal fastener with internal threads. The hexagonal design bears even force and is easy to operate with a wrench. It has a high degree of standardization and strong interchangeability. It has complete specifications and can be matched with all kinds of bolts and studs
Executive standards: GB/T 6170, GB/T 6171, GB/T 6172, GB/T 6175, ISO 4032, ISO 4033, DIN 934, DIN 439, ANSI/ASME B18.2.2
Material: carbon steel, stainless steel, alloy steel
Performance level: Level 4, Level 5, Level 8, Level 10, Level 12, SAE J995
Surface treatment: galvanized, blackened, phosphated, chrome plated, hot-dip galvanized
Specifications: M2 to M64, #4-40 to 1"-8
Main uses
Machine and equipment manufacturing: Matched with bolts/studs to fix motors, pump valves, machine tool components, and automotive chassis accessories. High-strength models above level 8 are used for heavy-duty components such as engines and gearboxes. Locking models are suitable for vibration conditions.
Construction and steel structure: hot-dip galvanized carbon steel models are used for steel structure nodes, curtain wall keels, scaffolding, and pipe connections, stainless steel models are used for outdoor or humid environments, and thickened models are suitable for heavy-duty steel structure anchoring.
Electronics and home appliance industry: small specifications (M2-M6) are used for fixing TVs, washing machines, and mobile phone accessories. Thin models are suitable for small installation spaces, and nylon locking models prevent loosening during operation.
General and civilian scenarios: used in furniture, door and window hardware, DIY Handmade products, outdoor fences, ordinary carbon steel models are suitable for indoor use, stainless steel models are used in humid environments such as balconies and bathrooms, and standardized specifications are easy to replace.






















勾头螺丝
U型螺栓
活节螺栓/鱼眼螺栓








