英制螺丝对照表螺丝英制螺纹对照表NominalsizeBasescrewdiametermm01.5211.8522.1832.5142.8453.1863.5173.8484.17104.83125.481/46.35UNS是英制普通粗牙螺纹UNF是英制航空工业用螺纹1/4-20:螺纹直径1/4”1”25.4mm有20个牙b5E2RGbCAP美制规格英寸毫米0-800.061.5241-640.0731.85422-560.0862.18443-480.0992.51464-400.1122.84485-400.1253.1756-320.1383.50528-320.1644.1656p1EanqFDPw10-240.194.82612-240.2165.48643/16-240.18754.76251/4-200.256.355/16-180.31257.93753/8-160.3759.5257/16-140.437511.11251/2-130.512.79/16-120.562514.28755/8-110.62515.87511/16-120.687517.4625PDF文件以FinePrintDXDiTa9E3dpdfFactoryPro试用版创建www.pdffactory.com3/4-100.7519.0513/16-100.812520.63757/8-90.87522.22515/16-90.937523.81251-8125.41.1/16-121.062526.9875RTCrpUDGiT1.1/8-71.12528.5751.1/4-71.2531.751.3/8-61.37534.9251.3/16-121.187530.16255PCzVD7HxA1.5/16-121.312533.33751.1/2-61.538.11.5/8-81.62541.2751.3/4-51.7544.451.7/8-51.87547.6252-4.1/2250.82.1/4-42.2557.152.1/2-42.563.5附件:螺丝luósījLBHrnAILg规格定义与认识一.螺纹种类:A:三角螺纹60度:结合/锁紧B:管用三角螺纹55度:结合/锁紧C:梯形螺纹30or29度:动力传动D:方螺纹90xHAQX74J0X度:动力传动二.常用螺丝种类:A:MachineScrew:机械螺丝B:TappingScrew:LDAYtRyKfE自攻螺丝分使用于金属与使用于塑料二种PDF文件以FinePrintpdfFactoryPro试Zzz6ZB2Ltk用版创建www.pdffactory.comB-1:SheetMetalTappingScrew.铁板牙自攻螺丝dvzfvkwMI1B-2:PlasticTappingScrew.塑料用自攻螺丝C:WoodenScrew:木工螺丝D:rqyn14ZNXIDrywallScrew:水泥墙螺丝三.常见螺丝材质:a.LowCarbonSteel:低碳钢b.EmxvxOtOcoSS-304:StainlessSteel304c.SS-302:StainlessSteel302:结构韧性较好d.AluminumSixE2yXPq55052:铝合金5052d.Brass:黄铜e.Bronze:青铜f.UNSC11000Copper:锑铜四.6ewMyirQFL常见螺丝规格与标示:A:公制螺丝B:美规螺丝C:英制螺丝A:公制机械螺丝:MetricEx:M3x6–PPB:M3机械螺丝6mm长十字圆扁头镀黑.FinishCode:kavU42VRUs外观处理规格HeadCode:头部外型ThreadCode螺丝型号DriveCode:头部剖沟y6v3ALoS89特征型号PDF文件以FinePrintpdfFactoryPro试用版创建www.pdffactory.comM2ub6vSTnPLengthCode:螺丝长度mmA-1:ThreadCode:螺丝型号公制螺丝直接以螺丝外径0YujCfmUCw标示螺丝型号如M3即螺丝外径为3.00mm.M4即螺丝外径为4.00mm.MetriceUts8ZQVRdThreadSizexPitch:Note:公制螺丝于螺丝型号后方有时会注明螺丝牙距.如M3x0.5M4x0.70M5x0.8M6x1.但因为标准规范通常不提.A-2:LengthCode:sQsAEJkW5T螺丝长度:公制螺丝直接标示螺丝长度单位为mm.螺丝之总长度标示只计算头部以下之长度不含头部高度.但平头螺丝例外其螺丝之总长度标示含头部高度.A-3:DriveCode/头部剖沟特征.一般常用规格如下:a.Slotted:一字Minusb.GMsIasNXkAPhillips:十字Plusc.Phil-Slot:一字/十字d.HexScoket:内六角e.OneWay:TIrRGchYzg单向只可锁入不可退出A-4:HeadCode/头部外型.一般常用规格如下:PDF文件以FinePrintpdfFactoryPro试用版创建www.pdffactory.coma.Flat:平头锁入后7EqZcWLZNX顶部与工作件齐平b.Oval:色拉头c.Round:圆头d.Pan:圆扁头e.Truss:大圆lzq7IGf02E扁头f.Hex:六角头.A-5:FinishCode/外观处理.一般常用规格如下:a.Z:zvpgeqJ1hkZine-Plated:镀锌b.Ni:Ni-Plated:镀镍c.Tin-Plated:镀锡d.ZinePlated/GreenNrpoJac3v1Iridite:镀锌绿膜处理.e.RadiantPlated:镀五彩f.Passivate:抗氧化处理.g.Alodial1nowfTG4KIFinish:无外观处理公制自攻螺丝:于品名后方直接标示TappingType.Ex:M3x6fjnFLDa5Zo–PPBTappingType:M3自攻螺丝6mm长十字圆扁头镀黑.一般以产品别或标tfnNhnE6e5示再判断为SheetMetal或塑料部品使用.B:美规螺丝.a.一般以番号标示如2-564-406-328-3210-24⋯etc.b.或以英制外径表示PDF文件以FinePrintpdfFactoryPro试用版创建www.pdffactory.com如0.086-560.112-400.138-320.164-320.190-24⋯etc.Ex:632–8–PPB:FinishC...
