251 GB/T 1168-1976 螺柱技術(shù)條件 Studs——Technical requirements
252 GB/T 1228-1991 鋼結(jié)構(gòu)用高強(qiáng)度大六角頭螺栓 High strength bolts with large hexagon head for steel structures 253 GB/T 1229-1991 鋼結(jié)構(gòu)用高強(qiáng)度大六角螺母 High strength large hexagon nuts for steel structures
254 GB/T 1230-1991 鋼結(jié)構(gòu)用高強(qiáng)度墊圈 High strength plain washers for steel structures
255 GB/T 1231-1991 鋼結(jié)構(gòu)用高強(qiáng)度大六角頭螺拴、大六角螺母、墊圈技術(shù)條件 Specifications of high strength bolts with large hexa-gon head, large hexagon nuts, plain washers for steel structures
256 GB/T 1237-1988 緊固件的標(biāo)記方法 Designation system for fasteners
257 GB/T 1337-1988 六角自鎖螺母 Self-locking nuts,hexagon
258 GB/T 1338-1988 小六角扁自鎖螺母 Self-locking nuts,reduced hexagon oblate
259 GB/T 1339-1988 小六角自鎖螺母 Self-locking nuts,reduced hexagon
260 GB/T 1340-1988 成組游動(dòng)托板自鎖螺母支架 Supports for self-locking nuts,anchor floating,Gang channel
261 GB/T 1356-1988 淅開線圓柱齒輪 基本齒廓 Basic rack tooth profile of involute cylindrical gears
262 GB/T 1357-1987 漸開線圓柱齒輪模數(shù) Modules of involute cyindrical gears
263 GB/T 1563-1979 楔鍵 鍵和鍵槽的剖面尺寸 Taper keys——Cross section dimensions of keys and keyways
264 GB/T 1564-1979 普通楔鍵 型式尺寸 Taper keys for general use——Types and dimensions
265 GB/T 1565-1979 鉤頭楔鍵 型式尺寸 Gib-head taper keys——Types and dimensions
266 GB/T 1566-1979 薄型平鍵 鍵和鍵槽的剖面尺寸 Thin flat keys——Cross section dimensions and keyways
267 GB/T 1567-1979 薄型平鍵 型式尺寸 Thin flat keys——Types and dimensions
268 GB/T 1840-1989 圓弧圓柱齒輪模數(shù) Modules of cylindrical gear with circular arc profiles
269 GB/T 1974-1980 切向鍵及其鍵槽 Tangential keys and keyways
270 GB/T 2362-1990 小模數(shù)漸開線圓柱齒輪基本齒廓 Basic rack tooth profile of fine-pitch involute cylindrical gears 271 GB/T 2363-1990 小模數(shù)漸開線圓柱齒輪精度 Accuracy of fine-pitch involute cylindrical gears
272 GB/T 2509-1981 滑動(dòng)軸承銅合金整體軸套形式、尺寸與公差 Copper alloy integrated shaft sleeves for plain bearings——Types, dimensions and tolerances
273 GB/T 2510-1981 滑動(dòng)軸承銅合金帶擋邊整體軸套形式、尺寸與公差 Copper alloy integrated shaft sleeves for plain bearings with gears——Types, dimensions and tolerances
274 GB/T 2511-1981 滑動(dòng)軸承銅合金整體軸套技術(shù)條件 Copper alloy integrated shaft sleeves——Technical requirements
275 GB/T 2555-1981 一般用途管法蘭連接尺寸 Pipe flange connectors for ordinary use——Mounting dimensions
276 GB/T 2556-1981 一般用途管法蘭密封面形狀和尺寸 Pipe flanges for ordinary use——Sealing surfaces——Forms and dimensions
277 GB/T 2672-1986 內(nèi)六角花形盤頭螺釘 Hexagon lobular socket pan head screws
278 GB/T 2673-1986 內(nèi)六角花形沉頭螺釘 Hexagon lobular socket countersunk head screws
279 GB/T 2674-1986 內(nèi)六角花形半沉頭螺釘 Hexagon lobular socket raised countersunk head screws
280 GB/T 2685-1981 滑動(dòng)軸承 粉末冶金筒形軸承型式、尺寸與公差 Powder metallurgy plain bearing——Cylindrical type——Types, dimensions and tolerances
281 GB/T 2686-1981 滑動(dòng)軸承 粉末冶金帶擋邊筒形軸承型式、尺寸與公差 Powder metallurgy plain bearing——Rimed cylindrical type——Types, dimensions and tolerances
282 GB/T 2687-1981 滑動(dòng)軸承 粉末冶金球形軸承型式、尺寸與公差 Powder metallurgy plain bearing——Spherical type——Types, dimensions and tolerances
283 GB/T 2688-1981 滑動(dòng)軸承 粉末冶金軸承技術(shù)條件 Powder metallurgy plain bearing——Technical requirements
284 GB/T 2821-1992 齒輪幾何要素代號 Symbols for gear geometrical data
285 GB/T 2889-1994 滑動(dòng)軸承 術(shù)語 Plain bearings——Terms, definitions and classification
286 GB/T 3098.1-1982 緊固件機(jī)械性能 螺栓、螺釘和螺柱 Mechanical properties of fasteners——Bolts, screws and studs
287 GB/T 3098.2-1982 緊固件機(jī)械性能 螺母 Mechanical properties of fasteners——Nuts
288 GB/T 3098.3-1982 緊固件機(jī)械性能 緊定螺釘 Mechanical properties of fasteners——Set screws
289 GB/T 3098.4-1986 緊固件機(jī)械性能——細(xì)牙螺母 Mechanical properties of fasteners——Nuts with fine pitch thread
290 GB/T 3098.5-1985 緊固件機(jī)械性能 自攻螺釘 Mechanical properties of fasteners——Tapping screws
291 GB/T 3098.6-1986 緊固件機(jī)械性能 不銹鋼螺栓, 螺釘, 螺柱和螺母 Mechanical properties of fasteners——Stainless steel bolts,screws, studs and nuts
292 GB/T 3098.7-1986 緊固件機(jī)械性能 自攻鎖緊螺釘 粗牙普通螺紋系列 Mechanical properties of fasteners——Thread forming screws——Metric coarse thread series
293 GB/T 3098.8-1992 緊固件機(jī)械性能 耐熱用螺紋連接副 Mechanical properties of fasteners——Components for bolted connections made mainly from materials with a high temperature strength
294 GB/T 3098.9-1993 緊固件機(jī)械性能有效力矩型鋼六角鎖緊螺母 Mechanical properties of fasteners——Prevailing torque type steel hexagon nuts
295 GB/T 3098.10-1993 緊固件機(jī)械性能 有色金屬制造的螺栓、螺釘、螺柱和螺母 Mechanical properties of fasteners——Bolts, screws, studs and nuts made of non-ferrous metals
296 GB/T 3098.11-1995 緊固件機(jī)械性能自鉆自攻螺釘 Mechanical properties of fasteners——Self-drilling tapping screws
297 GB/T 3098.13-1996 緊固件機(jī)械性能 螺栓與螺釘?shù)呐ぞ卦囼?yàn)和破壞扭矩公稱直徑1~10mm Mechanical properties of fasteners——Torsional test and minimum torques for bolts and screws with nominal diameters 1mm to 10mm
298 GB/T 3098.12-1996 緊固件機(jī)械性能 螺母錐形保證載荷試驗(yàn) Mechanical properties of fasteners——Cone proof load test on nuts
299 GB/T 3099-1982 螺栓、螺釘、螺母及附件名詞術(shù)語 Bolts, screws, nuts and accessories——Terminology and nomenclature
300 GB/T 3103.1-1982 緊固件公差 螺栓、螺釘和螺母 Tolerances for fasteners——Bolts, screws and nuts
252 GB/T 1228-1991 鋼結(jié)構(gòu)用高強(qiáng)度大六角頭螺栓 High strength bolts with large hexagon head for steel structures 253 GB/T 1229-1991 鋼結(jié)構(gòu)用高強(qiáng)度大六角螺母 High strength large hexagon nuts for steel structures
254 GB/T 1230-1991 鋼結(jié)構(gòu)用高強(qiáng)度墊圈 High strength plain washers for steel structures
255 GB/T 1231-1991 鋼結(jié)構(gòu)用高強(qiáng)度大六角頭螺拴、大六角螺母、墊圈技術(shù)條件 Specifications of high strength bolts with large hexa-gon head, large hexagon nuts, plain washers for steel structures
256 GB/T 1237-1988 緊固件的標(biāo)記方法 Designation system for fasteners
257 GB/T 1337-1988 六角自鎖螺母 Self-locking nuts,hexagon
258 GB/T 1338-1988 小六角扁自鎖螺母 Self-locking nuts,reduced hexagon oblate
259 GB/T 1339-1988 小六角自鎖螺母 Self-locking nuts,reduced hexagon
260 GB/T 1340-1988 成組游動(dòng)托板自鎖螺母支架 Supports for self-locking nuts,anchor floating,Gang channel
261 GB/T 1356-1988 淅開線圓柱齒輪 基本齒廓 Basic rack tooth profile of involute cylindrical gears
262 GB/T 1357-1987 漸開線圓柱齒輪模數(shù) Modules of involute cyindrical gears
263 GB/T 1563-1979 楔鍵 鍵和鍵槽的剖面尺寸 Taper keys——Cross section dimensions of keys and keyways
264 GB/T 1564-1979 普通楔鍵 型式尺寸 Taper keys for general use——Types and dimensions
265 GB/T 1565-1979 鉤頭楔鍵 型式尺寸 Gib-head taper keys——Types and dimensions
266 GB/T 1566-1979 薄型平鍵 鍵和鍵槽的剖面尺寸 Thin flat keys——Cross section dimensions and keyways
267 GB/T 1567-1979 薄型平鍵 型式尺寸 Thin flat keys——Types and dimensions
268 GB/T 1840-1989 圓弧圓柱齒輪模數(shù) Modules of cylindrical gear with circular arc profiles
269 GB/T 1974-1980 切向鍵及其鍵槽 Tangential keys and keyways
270 GB/T 2362-1990 小模數(shù)漸開線圓柱齒輪基本齒廓 Basic rack tooth profile of fine-pitch involute cylindrical gears 271 GB/T 2363-1990 小模數(shù)漸開線圓柱齒輪精度 Accuracy of fine-pitch involute cylindrical gears
272 GB/T 2509-1981 滑動(dòng)軸承銅合金整體軸套形式、尺寸與公差 Copper alloy integrated shaft sleeves for plain bearings——Types, dimensions and tolerances
273 GB/T 2510-1981 滑動(dòng)軸承銅合金帶擋邊整體軸套形式、尺寸與公差 Copper alloy integrated shaft sleeves for plain bearings with gears——Types, dimensions and tolerances
274 GB/T 2511-1981 滑動(dòng)軸承銅合金整體軸套技術(shù)條件 Copper alloy integrated shaft sleeves——Technical requirements
275 GB/T 2555-1981 一般用途管法蘭連接尺寸 Pipe flange connectors for ordinary use——Mounting dimensions
276 GB/T 2556-1981 一般用途管法蘭密封面形狀和尺寸 Pipe flanges for ordinary use——Sealing surfaces——Forms and dimensions
277 GB/T 2672-1986 內(nèi)六角花形盤頭螺釘 Hexagon lobular socket pan head screws
278 GB/T 2673-1986 內(nèi)六角花形沉頭螺釘 Hexagon lobular socket countersunk head screws
279 GB/T 2674-1986 內(nèi)六角花形半沉頭螺釘 Hexagon lobular socket raised countersunk head screws
280 GB/T 2685-1981 滑動(dòng)軸承 粉末冶金筒形軸承型式、尺寸與公差 Powder metallurgy plain bearing——Cylindrical type——Types, dimensions and tolerances
281 GB/T 2686-1981 滑動(dòng)軸承 粉末冶金帶擋邊筒形軸承型式、尺寸與公差 Powder metallurgy plain bearing——Rimed cylindrical type——Types, dimensions and tolerances
282 GB/T 2687-1981 滑動(dòng)軸承 粉末冶金球形軸承型式、尺寸與公差 Powder metallurgy plain bearing——Spherical type——Types, dimensions and tolerances
283 GB/T 2688-1981 滑動(dòng)軸承 粉末冶金軸承技術(shù)條件 Powder metallurgy plain bearing——Technical requirements
284 GB/T 2821-1992 齒輪幾何要素代號 Symbols for gear geometrical data
285 GB/T 2889-1994 滑動(dòng)軸承 術(shù)語 Plain bearings——Terms, definitions and classification
286 GB/T 3098.1-1982 緊固件機(jī)械性能 螺栓、螺釘和螺柱 Mechanical properties of fasteners——Bolts, screws and studs
287 GB/T 3098.2-1982 緊固件機(jī)械性能 螺母 Mechanical properties of fasteners——Nuts
288 GB/T 3098.3-1982 緊固件機(jī)械性能 緊定螺釘 Mechanical properties of fasteners——Set screws
289 GB/T 3098.4-1986 緊固件機(jī)械性能——細(xì)牙螺母 Mechanical properties of fasteners——Nuts with fine pitch thread
290 GB/T 3098.5-1985 緊固件機(jī)械性能 自攻螺釘 Mechanical properties of fasteners——Tapping screws
291 GB/T 3098.6-1986 緊固件機(jī)械性能 不銹鋼螺栓, 螺釘, 螺柱和螺母 Mechanical properties of fasteners——Stainless steel bolts,screws, studs and nuts
292 GB/T 3098.7-1986 緊固件機(jī)械性能 自攻鎖緊螺釘 粗牙普通螺紋系列 Mechanical properties of fasteners——Thread forming screws——Metric coarse thread series
293 GB/T 3098.8-1992 緊固件機(jī)械性能 耐熱用螺紋連接副 Mechanical properties of fasteners——Components for bolted connections made mainly from materials with a high temperature strength
294 GB/T 3098.9-1993 緊固件機(jī)械性能有效力矩型鋼六角鎖緊螺母 Mechanical properties of fasteners——Prevailing torque type steel hexagon nuts
295 GB/T 3098.10-1993 緊固件機(jī)械性能 有色金屬制造的螺栓、螺釘、螺柱和螺母 Mechanical properties of fasteners——Bolts, screws, studs and nuts made of non-ferrous metals
296 GB/T 3098.11-1995 緊固件機(jī)械性能自鉆自攻螺釘 Mechanical properties of fasteners——Self-drilling tapping screws
297 GB/T 3098.13-1996 緊固件機(jī)械性能 螺栓與螺釘?shù)呐ぞ卦囼?yàn)和破壞扭矩公稱直徑1~10mm Mechanical properties of fasteners——Torsional test and minimum torques for bolts and screws with nominal diameters 1mm to 10mm
298 GB/T 3098.12-1996 緊固件機(jī)械性能 螺母錐形保證載荷試驗(yàn) Mechanical properties of fasteners——Cone proof load test on nuts
299 GB/T 3099-1982 螺栓、螺釘、螺母及附件名詞術(shù)語 Bolts, screws, nuts and accessories——Terminology and nomenclature
300 GB/T 3103.1-1982 緊固件公差 螺栓、螺釘和螺母 Tolerances for fasteners——Bolts, screws and nuts