3 技术条件和引用标准
技术条件和引用标准见表1和表2。
表1 螺纹紧固件
材料 | 碳钢、合金钢 | 不锈钢 | 有色金属 |
公差 | GB/T 3103.1 | ||
机械和功能特性 | GB/T 3098.1 GB/T 3098.2 GB/T 3098.3 GB/T 3098.4 GB/T 3098.7 GB/T 3098.9 GB/T 3098.13 | GB/T 3098.6 GB/T 3098.15 GB/T 3098.16 | GB/T 3098.10 |
几何特征 ——螺纹 ——扳拧特征 ——零件末端 ——沉头 ——其他 |
GB/T 197、GB/T 2516、GB/T 9145、GB/T 22028、GB/T 22029 GB/T 3104、GB/T 944.1、GB/T 6188 GB/T 2 GB/T 5279 GB/T 3、GB/T 3105、GB/T 3106、GB/T 5278 | ||
表面缺陷 | GB/T 5779.1 GB/T 5779.2 GB/T 5779.3 | / | / |
表面处理 | GB/T 5267.1 GB/T 5267.2 GB/T 5267.3 | ISO 16048 | GB/T 5267.1 |
质量状况 | GB/T 90.1、GB/T 90.2、ISO 16426 |
表2 自攻螺纹紧固件
材料 | 钢 | 不锈钢 |
公差 | GB/T 3103.1 | |
机械和功能特性 | GB/T 3098.5 GB/T 3098.11 | GB/T 3098.21 |
几何特征 ——螺纹 ——扳拧特征 ——零件末端 ——沉头 |
GB/T 5280 GB/T 944.1、GB/T 6188 GB/T 5280 GB/T 5279 | |
表面处理 | GB/T 5267.1 GB/T 5267.2 GB/T 5267.3 | ISO 16048 |
质量状况 | GB/T 90.1、GB/T 90.2、ISO 16426 |
4 通用技术要求
采用的制造方法,应能保证产品有完整的表面和棱边,而没有毛刺。通常,不要求去除诸如开槽或锻压、冲压或切边等工艺造成的小毛刺。然而,任何影响产品性能或者触摸时有安全危险的毛剌,均应去除。标准的螺栓、螺钉、螺柱和螺母应规定下列部分:
a)机械性能(性能等级、材料);
b)产品等级(公差);
c)标准化的几何特征(如需要时);
d)表面覆盖层(如要求时);特殊技术要求(如同意时)。
所有数据与制成品有关。除另有专用标准或供需之间的协议,否则不应规定制造过程。
超出螺栓和螺钉支承面的切边毛刺是不允许的。
除非另有规定,否则允许螺栓和螺钉留有中心孔。
除非已规定了一种表面覆盖层,产品的表面处理应为:
——不经处理,用于钢制产品,或
——简单处理,用于不锈钢或有色金属产品。
如无其他协议,交付的螺栓、螺钉、螺柱和螺母应是清洁的,并涂有防锈油。
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
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