英美制紧固件

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1、英、美制紧固件一、英、美制紧固件螺纹英寸制螺纹包括惠氏螺纹（Whitworththread）和统一标准螺纹（Unifiedthread）。惠氏螺纹是英国英寸制规格紧固件用普通螺纹，其牙型角为55°，习惯用公称直径（单位为英寸inch）及每英寸牙数来表示，尺寸单位采用符号“””。例如：1/2”-12BSW表示公称直径为1/2”的粗牙惠氏螺纹。统一标准螺纹是美国英寸制规格紧固件用普通螺纹，其牙型角为60°，一般用号码（公称直径﹤1/4”）或公称直径的英寸分数（≥1/4”）、每英寸牙数和代号（UNC、UNF）来

2、表示。例如：1/2”-13UNC表示公称直径为1/2”的粗牙统一标准螺纹。惠氏螺纹和统一标准螺纹公称直径与每英寸牙数螺纹大统一标准螺纹ANSIB1.1-惠氏螺纹BS84-1956径182粗牙细牙粗牙inch尺寸代号尺寸代号细牙BSFUNCUNFBSW0.06000#800.06251/16600.07301#64720.08602#56640.09383/32480.09903#48560.11204#40480.12505#40441/8400.13806#32400.15635/32320.16408

3、#32360.18753/1624320.190010#24320.216012#24280.21897/3224280.25001/420281/420260.28129/32260.31255/1618245/1618220.37503/816243/816200.43757/1614207/161418PDF文件使用"pdfFactoryPro"试用版本创建稀序序序（试创各使说二创各中（代各0.50001/213201/212160.56259/1612189/1612160.62505/81118

4、5/811140.687511/1611140.75003/410163/410120.812513/16120.87507/89147/89111.0000181218101.12501-1/87121-1/8791.25001-1/47121-1/4791.37501-3/86121-3/881.50001-1/26121-1/2681.62501-5/81-5/881.75001-3/451-3/4572.000024.524.572.25002-1/44.52.50002-1/242.75002-

5、3/443.0000343.25003-1/443.50003-1/243.75003-3/444.000044备注：各种英、美制螺纹代号说明BA-BritishAssociationBSW-BritishStandardWhitworthBSF-BritishStandardFineBSF-BritishStandardFineBSC-BritishStandardCycleUNC-UnifiedNationalCourseUNF-UnifiedNationalFineUNEF-UnifiedNatio

6、nalExtraFinePDF文件使用"pdfFactoryPro"试用版本创建www.fineprint.cnUNM-UnifiedNationalMiniatureNPT-NationalPipeTapered二、德国标准中英文对照表序号德国标准中文品名英文品名DIN-DescriptioninItemDescriptioninEnglishStandardChinese1DIN1圆锥销taperpins2DIN7圆柱销parallelpins3DIN84开槽圆柱头螺钉slottedcheesehea

7、dscrews4DIN85开槽盘头螺钉slottedpanheadscrews5DIN93单耳止动垫圈tabwashers6DIN94开口销splitcotterpinsslottedraisedcskheadwood7DIN95开槽半沉头木螺钉screws8DIN96开槽半圆头木螺钉slottedroundheadwoodscrewsslottedcountersunkheadwood9DIN97开槽沉头木螺钉screws10DIN125-A平垫plainwashers11DIN125-B平垫(带倒角)

8、mediunwashers12DIN126平垫plainwashers13DIN127-A重型弹垫springlockwashers,tangends14DIN127-B标准弹垫springlockwashers,squareends15DIN128-A鞍形弹垫singlecoilspringlockwashers16DIN137-A弹簧止动垫圈curvedspringwashers17DIN137-B波形弹垫wavespri