3.1 螺纹
铆螺母的螺纹基本尺寸按GB/T 196 的规定,螺纹公差带按GB/T 197规定的6H。
3.2 材料
钢平头、沉头、小沉头、120°小沉头及平头六角铆螺母:08F(GB/T 699),ML10(GB/T 6478)。
铝合金平头及沉头铆螺母:5056(原LF5-1)、6061(原LD30)(GB/T 3190)。
其他材料由供需双方协议。
3.3 机械性能
表1
铆螺母 | 机械性能 | 螺纹规格 | |||||||
M3 | M4 | M5 | M6 | M8 | M10 | M12 | |||
平头、平头六角、沉头、小沉头、120°小沉头 | 保证载荷 N/ min | 钢 | 3900 | 6800 | 11500 | 16500 | 25000 | 32000 | 34000 |
铝 | 1900 | 4000 | 6500 | 7800 | 12300 | 17500 | / | ||
平头、平头六角、沉头 | 头部结合力N/ min | 钢 | 2236 | 3220 | 4348 | 6149 | 9034 | 11926 | 13914 |
铝 | 1242 | 1789 | 2435 | 3416 | 5019 | 6626 | / | ||
平头、平头六角、沉头、小沉头、120°小沉头 | 剪切力 N/ min | 钢 | 1100 | 2100 | 2600 | 3800 | 5400 | 6900 | 7500 |
铝 | 640 | 1200 | 1900 | 2700 | 3900 | 4200 | / | ||
注:M10×1、M12×1.5的保证载荷、头部结合力、剪切力由供需双方协议。 |
表2
螺纹规格D | M3 | M4 | M5 | M6 | M8 | M10 | M12 | |
破坏扭矩 N·m/ min | 钢平头、平头六角 | 2 | 5 | 8.5 | 15 | 26 | 50 | 80 |
钢沉头 | 1 | 4 | 8 | 15 | 26 | 45 | 70 | |
钢小沉头、120°小沉头 | 1 | 3 | 6 | 11 | 20 | 32 | 50 | |
铝平头、沉头 | 0.7 | 2.5 | 5 | 8 | 20 | 25 | / | |
注:M10×1、M12×1.5的破坏扭矩由供需双方协议。 |
表3
螺纹规格D | M3 | M4 | M5 | M6 | M8 | M10 | M12 | |
转动扭矩 N·m/ min | 钢平头 | 0.5 | 1 | 2 | 4.5 | 5.5 | 11 | 30 |
钢沉头 | 0.4 | 0.8 | 1.5 | 3.5 | 4.5 | 8.5 | 24 | |
铝平头 | 0.25 | 0.9 | 1.5 | 3.5 | 5 | 6.5 | 21 | |
铝沉头 | 0.2 | 0.7 | 1.2 | 2.5 | 4 | 5 | 16 | |
注:M10×1、M12×1.5的转动扭矩由供需双方协议。 |
3.4 表面处理
钢制铆螺母应进行电镀锌、并采用Fe/Ep•Zn 5•c 2C 防护层(按GB/T 9799)。
铝制铆螺母一般不进行表面处理。
其他表面处理要求由供需双方协议。
Specifications of high strength bolts with large hexagon head, large hexagon nuts, plain washers for steel structures
Composite sealing gasket material
Steel wire ropes for general purposes
Specifications for spring washers - Conical spring washers
Specifications for retaining rings-Circlips
Hot formed helical compression springs - Technical Requirement
High-strength structural bolting assemblies for preloading - Part 1: General requirements
Cold coiled helical springs technical specifications - Part 1: Extension spring
Cold coiled helical springs technical specifications - Part 2: Compressions spring
Specification For Wire Thread Inserts
General specifications for packing of mechanical and electrical product
Fasteners - General requirements for bolts,screws,studs and nuts
24° Cone Connectors - Specification
Flared couplings - Specification
Specification of metallic ring-joint gaskets for steel pipe flanges
Specifications of high strength bolts with large hexagon head, large hexagon nuts, plain washers for steel structures
Specification of gauges for general purpose screw threads
Fasteners - Marking and packaging
Plain Washers for Bolts, Screws and Nuts - General Plan
Fasteners - Surface discontinuities - Bolts, screws and studs for general requirements
Fasteners-Surface discontinuities - Nuts
Fasteners - Surface discontinuities - Bolts, screws and studs for special requirements
Technical requirements for anchors
Specifications For Drive Rivets
Technical requirement for sets of torshear type high strength bolt hexagon nut and plain washer for steel structures
Specifications for parts and units of jigs and fixtures
Grease nipples and lubricating cups technical specification
Oil level indicators technical specification
Counterbores for hexagon socket head and slotted cheese head screws
Procurement Specification For Self-Locking Nuts
Specification for tab washer
Specifications for pins
Spcifications for ring - Cutting rings
Technical requirements of malleable cast iron pipe fittings
metal washers; technical delivery conditions
Steel flat products; Hot rolled plate 3 to 150 mm thick; Permissible deviations of dimension, weight and form
Flat products of steel; cold rolled steel strip; dimensions, tolerances on dimensions and form.
Commercial vehicles - Wheel-hub attachment dimensions
Tools for pressing - Elastomer pressure springs - Part 2: Specification of accessories
Hydraulic fluid power - Two-, three- and four-port screw-in cartridge valves - Cavities
Cold heading dies for fasteners - Specifications
Specification of Stamping Die Components
Specifications for parts and units of jigs and fixtures
Internal combustion engines - Cylinder head and flywheel nuts - Specifications
Timber structures - Dowel-type fasteners - Requirements
Aerospace series - Bolts, MJ threads, in heat resisting nickel base alloy NI-PH2601 (Inconel 718) - Classification: 1275 MPa (at ambient temperature)/650 °C - Technical specification
High-strength structural bolting assemblies for preloading - Part 1: General requirements
Flanges and their joints - Bolting - Part 3: Classification of bolt materials for steel flanges, class designated
Metallic products - Types of inspection documents
Flanges and their joints - bolting - Part 2: Classification of bolt materials for steel flanges, PN designated
Flanges and their joints - bolting - Part 1: Selection of bolting
Aerospace series - Inserts, screw thread, helical coil, self locking - Technical specification
Aerospace series - Inserts, screw thread, helical coil, self-locking - Assembly procedure
Specification for Selection of Steel Pipe Flanges , Gaskets and Bolting (PN designated)
Alloy and Carbon Steel Bolting for Use in the Petroleum and Natural Gas Industries
Standard Specification for Steel Transmission Tower Bolts, Zinc-Coated and Bare
Mechanical fixation component for waterproofing membrane roofing
Construction machinery and equipment Specification of high strength fasteners
Fastenersart - Standard - Cap Screws, Hex Bolts, and Hex Nuts
Steel Self-Drilling Tapping Screws
Technical conditions for threaded fasteners with adhesive coating-Part 1: Microencapsulated locking coating
Technical condions for threaded fasteners with adhesive coating-Part 2: Polyamlde locking coating
Technical Supply Conditions For Threaded Steel Fasteners - Part 1 General Requirements For Bolts, Screws And Studs
General data for machine screws and tapping screws
Plain nuts and slotted nuts - Part 1: General specification