加硬后螺丝的扭力及硬度检验标准

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1、文件名称加硬后螺丝的扭力及硬度检验标准制订单位页次3/3文件编号发行日期版次A0公制螺纹加硬后扭力检验标准(Kgf.cm)直径(mm)1种2种3种尖嘴（A）牙，钢牙尖嘴（AB）牙，钢牙机丝牙（M）牙牙距1010料1018料牙距1010料1018料牙距1010料1018料M164°0.40.564°0.40.50.250.480.6M1.256°1.041.356°1.041.30.251.041.3M1.452°1.441.852°1.441.80.31.441.8M1.552°1.762.252°1.762.20.31.762.2M1.648°22.548°22.50.3522

2、.5M1.7（1.8）48°2.242.848°2.243.50.352.242.8M232°3.444.340°3.444.30.43.24M2.232°5.532°4.50.44M2.332°6.4832°6.480.46.48M2.432°6.88.532°6.88.5M2.528°7.2928°7.290.457.449.3M2.628°81028°8100.45810M2.824°11.21424°11.2140.511.214M324°11.21424°12.8160.513.617M3.518°18.42320°20.8260.620.826M416°28.8361

3、8°28.8360.730.438M4.514°39.24916°42.4530.7545.657M512°52.86616°57.6720.864.881M610°9612014°95130195135M89°23229012°2443051.25276345公制螺纹加硬后硬度检验标准加硬1010料加硬1018料规格机牙（HV）钢牙（HV）规格机牙（HV）钢牙（HV）2.0或2.0以下450-650HV450-650HV1.5或1.5以下400-600HV400-600HV2.01或2.80450-650HV450-650HV1.50-2.00450-750HV450-750H

4、V2.81或3.49450-650HV450-650HV2.01-2.80450-750HV450-750HV3.5或3.5以上450-650HV450-650HV2.81以上450-750HV450-750HV注：ST，CT牙当机牙计，BT牙，PT牙，PC牙，OT牙，KT牙，KB牙，CB牙当钢牙计，所有加硬发货时注明小心弯曲。注：2mm以上的芯部硬度HV270-4001.5或以下HV400-600中心硬度HV200-400，2mm以下的芯部硬度HV200-400，螺母的HV参照机牙计。美制或英制螺纹加硬后扭力检验标准文件名称加硬后螺丝的扭力及硬度检验标准制订单位页次3/3文件编

5、号发行日期版次A0直径(mm)1010料扭力值尖嘴kgf.cm钢牙尖嘴幼牙kgf.cm机牙kgf.cm#12.42.42.4#23.23.23.6#37.27.27.2#411.211.211.2#514.414.216#620.820.820.8#7242424#828.828.830.4#1043.243.245.6#1257.657.664.8#1/4104104108#5/16236236256美制或英制螺纹加硬后硬度检验标准材质材质1010料规格机械牙钢牙#1HV500-650HV500-650#2～#4HV550-700HV450-600#5～#12，1/4，5/16

6、HV550-700HV550-700公制粗牙螺纹有级别要求的扭力检验标准（单位kgf.cm）规格8.8级10.9级12.9级M429.443.1249.98M557.8285.2698M698156.8176.4M8245352.8421.4文件名称加硬后螺丝的扭力及硬度检验标准制订单位页次3/3文件编号发行日期版次A0美制或英制螺纹加硬后扭力检验标准直径(mm)1018/1022料扭力值尖嘴kgf.cm钢牙尖嘴幼牙kgf.cm机牙kgf.cm#1333#2444.5#3999#4141514#5181820#62627.626#7303030#8364040#10545457#

7、12727281#1/4130130135#5/16295295320美制或英制螺纹加硬后硬度检验标准材质材质1018/1022料规格机械牙钢牙#1HV500-650HV480-620#2～#4HV500-650HV450-600#5～#12，1/4，5/16HV500-650HV500-650加硬后电锌要做（除氢）测试螺丝硬度检验标准值材质材质1018/1022规格机牙钢牙1.5以下HV400-500HV400-5001.51～2.0（0#，1#）HV-450-550HV-45