五金零件规范.doc

小五金工程評估手冊 第 58頁 共 57 頁 APPROVED CHECKED PREPARED 目錄1. 螺釘 61.1螺紋標誌及尺寸 61.1.1米制細牙螺紋 71.1.2米制粗牙螺紋 81.1.3英制細牙螺紋 81.1.4英制粗牙螺紋 91.2通孔孔徑 101.3攻螺紋孔孔徑 111.3.1米制細牙螺紋 111.3.2米制粗牙螺紋 111.3.3英制細牙螺紋 121.3.4英制粗牙螺紋 131.3.5板材上孔與板邊間距 131.4 配合尺寸 131.5 機械性能 131.6 鋼板厚度 141.7 特殊螺釘 151.7.1 自攻螺釘 151.7.1.1 硬化層深度 151.7.1.2 硬度 161.7.1.3 尺寸 161.7.1.4 工作扭力 171.7.1.5 結合比與預衝孔呎寸關係 181.7.1.6 鋼板孔徑及抽牙高 191.7.2 塑膠螺釘 201.7.2.1 螺紋形狀 201.7.2.2 硬度 211.7.2.3 螺紋呎寸 211.7.3 浮動螺釘 211.7.3.1 浮動螺釘形狀 211.7.3.2 基本要求 211.8 螺釘驗證方法 22資料： 23A 螺釘常見穴型簡介 23B 常用板材硬度 23C 電鍍層 232. 螺母 242.1製造材料 242.1.1材料牌號 242.1.2材質化學成份 242.1.3 機械性能 242.1.4 螺母材料的選取 242.2尺寸及公差 252.2.1型號為“S. SS. CLS以及CLSS”的自鉚螺母尺寸 252.2.2型號為SP, 專用於不銹鋼沖壓板件上的自鉚螺母尺寸 282.2.3型號為H, HN, HNL之易削鋼制自鎖和防鎖螺母的尺寸 302.2.4型號為F的自鉚螺母尺寸 302.2.5尺寸公差 322.3 壓鉚要求 322.4 配合呎寸 352.5 螺母驗證方法 353. 螺柱 363.1製造螺柱材料 363.1.1材料牌號 363.1.2化學成份 363.1.3 機械性能 363.1.4 螺柱材料的選取 373.2尺寸 373.2.1型號為“SO. SON. SOA. SOS. ”的通孔螺柱 373.2.1.1一般尺寸 383.2.1.2螺紋規格和螺柱長度 393.2.2 型號為“BSO.BSON. BSOA.BSOS. ”的盲孔螺柱 403.2.2.1一般尺寸 403.2.2.2螺紋規格和螺柱長度 413.3 公差 433.4 壓鉚要求 433.5 螺柱驗證方法 444. 支柱 454.1型號為“SO.SON. SOA.SOS”的通孔支柱 454.1.1材料牌號 454.1.2材質化學成份 454.1.3機械性能 454.1.4 螺柱材料的選取 464.1.5一般尺寸 464.1.6支柱規格和支柱長度 474.1.7公差 494.2 其它異型支柱 494.2.1 製造材料 494.2.2尺寸 494.2.3 板材厚度及孔徑 514.3 壓鉚要求 514.4 支柱驗證方法 525.拉釘 535.1 拉釘製造材料 545.2 尺寸 545.3 拉釘驗證方法 556.彈簧 566.1 彈簧製造材料 566.2彈簧鋼絲呎寸 566.2.1製造彈簧用不銹鋼鋼絲標準直徑 566.2.2標準鋼絲尺寸偏差 576.3 彈簧自由長度 576.4 彈簧外徑D 576.5彈簧的總圈數 576.6 彈簧的方向 576.7彈簧驗證方法 571 螺釘定義：由頭部和螺杆兩部份構成的一類緊固件 本手冊中包括的螺釘主要有機械螺釘、自攻螺釘、塑膠螺釘和浮動螺釘等機械螺釘：由頭部和螺杆兩部份構成的一類金屬緊固件主要用於一個帶有內螺紋孔的零件与帶有通孔的零件之間的緊固聯接，不需要螺母配合；也用於帶有通孔的零件之間的緊固聯接，但要與螺母配合屬可拆卸連接自攻螺釘：由頭部和螺杆兩部份構成的一類金屬緊固件，但螺杆上的螺紋為專用的自攻螺釘用螺紋用於緊固聯接兩個薄的金屬構件，使之成為一體，構件上需事先制出小孔這種螺釘具有較高的硬度，可直接旋入構件的孔中，使構件孔中形成相應的內螺紋塑膠螺釘：由頭部和螺杆兩部份構成的一類金屬緊固件，但螺杆上的螺紋為專用的塑膠螺釘用螺紋可直接旋入塑膠件中，用於把一個帶通孔的金屬(或非金屬)零件與一個塑膠件緊固聯接在一起浮動螺釘：壓鉚於衝件預制孔內, 用於經常拆裝之衝壓件的把手螺釘, 其結構特點是螺釘本體內包含彈性體1.1 螺紋標誌及尺寸(除非特別指明，適用於所有的螺釘、螺母和螺柱)螺紋分為外螺紋和內螺紋兩種，一般螺釘為外螺紋形式，螺母或螺柱為內螺紋形式，常用的螺紋如圖示H：原始三角形高度 P：螺距 D：內螺紋公稱直徑 d：外螺紋公稱直徑 H1：螺紋牙高D2：內螺紋中徑 D1：內螺紋小徑 d2：外螺紋中徑d1：外螺紋小徑n為每英寸牙數1.1.1米制細牙螺紋H =0.866025P d2=d-0.649519P D=dH1=0.541266P d1=d-1.082532P D2=d2 D1=d1單位mm螺紋標誌PH1d(D)d2(D2)d1(D1)M1 0.20.20.1081.0000.8700.783M1.10.20.20.1081.1000.9700.883M1.20.20.20.1081.2001.0700.983M1.40.20.20.1081.4001.2701.183M1.60.20.20.1081.6001.4701.383M1.80.20.20.1081.8001.6701.583M2 0.250.250.1352.0001.8381.729M2.20.250.250.1352.2002.0381.929M2.50.350.350.1892.5002.2732.121M3 0.350.350.1893.0002.7732.621M3.50.350.350.1893.5003.2733.121M4 0.50.50.2714.0003.6753.459M4.50.50.50.2714.5004.1753.959M5 0.50.50.2715.0004.6754.459M5.50.50.50.2715.0005.1754.959M6 0.750.750.4066.0005.5135.1881.1.2米制粗牙螺紋H =0.866025P d2=d-0.649519P D=dH1=0.541266P d1=d-1.082532P D2=d2 D1=d1單位mm螺紋標誌PH1d(D)d2(D2)d1(D1)M10.250.1351.0000.8380.729M1.10.250.1351.1000.9380.829M1.20.250.1351.2001.0380.929M1.40.30.1621.4001.2051.075M1.60.350.1891.6001.3731.221M1.80.350.1891.8001.5731.421M20.40.2172.0001.7401.567M2.20.450.2442.2001.9081.713M2.50.450.2442.5002.2082.013M30.50.2713.0002.6752.459M3.50.60.3253.5003.1102.850M40.70.3794.0003.5453.242M4.50.750.4064.5004.0133.688M50.80.4335.0004.4804.134M610.5416.0005.3504.9171.1.3英制細牙螺紋 P=25.4n H =0.866025P d=(d) 25.4 D=d H1=0.541266P d2=(d-0.649519/n) 25.4 D2=d2 d1=(d-1.082532/n) 25.4 D1=d1單位mm螺紋標誌(Reference)nPH1d(D)d2(D2)d1(D1)No. 0-80 UNF0.0600-80 UNF800.31750.1721.5241.3181.181No. 1-72 UNF0.0730-72 UNF720.35280.1911.8541.6261.473No. 2-64 UNF0.0860-64 UNF640.39690.2152.1841.9281.755No. 3-56 UNF0.0990-56 UNF560.45360.2462.5152.2202.024No. 4-48 UNF0.1120-48 UNF480.52920.2862.8452.5022.271No. 5-44 UNF0.1250-44 UNF440.57730.3123.1752.7992.550No. 6-40 UNF0.1380-40 UNF400.63500.3443.5053.0942.817No. 8-36 UNF0.1640-36 UNF360.70560.3824.1663.7083.401No. 10-32 UNF0.1900-32 UNF320.79380.4304.8264.3104.967No. 12-28 UNF0.2160-28 UNF280.90710.4915.4864.8974.5031.1.4英制粗牙螺紋P=25.4n H =0.866025P d=(d) 25.4 D=d H1=0.541266P d2=(d-0.649519/n) 25.4 D2=d2 d1=(d-1.082532/n) 25.4 D1=d1單位mm螺紋標誌(Reference)nPH1d(D)d2(D2)d1(D1)No. 1-64 UNC0.0730-64 UNC640.39690.2151.8541.5981.425No. 2-56 UNC0.0860-56 UNC560.45360.2462.1841.8901.694No. 3-48 UNC0.0990-48 UNC480.52920.2862.5152.1721.941No. 4-40 UNC0.1120-40 UNC400.63500.3442.8452.4332.156No. 5-40 UNC0.1250-40 UNC400.63500.3443.1752.7642.487No. 6-32 UNC0.1380-32 UNC320.79380.4303.5052.9902.647No. 8-32 UNC0.1640-32 UNC320.79380.4304.1663.6503.307No. 10-24 UNC0.1900-24 UNC241.05830.5734.8264.1383.680No. 12-24 UNC0.2160-24 UNC241.05830.5735.4864.7984.3411.2通孔孔徑螺釘連接零件上預制之通孔如圖示：通孔孔徑之尺寸如下表(單位mm)：螺釘公稱直徑通孔直徑(d)mm1級2級3級4級11.11.21.31.21.31.41.51.41.51.61.81.61.71.821.71.822.11.82.02.12.222.22.42.62.22.42.62.82.32.52.72.92.52.72.93.12.62.833.233.23.43.63.53.73.94.244.34.54.85.54.54.855.3655.35.55.86.566.46.677.81.3攻螺紋孔孔徑與螺釘相配的螺紋攻絲孔孔徑取決於外內螺紋結合比之大小螺紋結合比(%)=(螺釘公稱直徑-攻絲孔直徑)(2螺紋結合高度) 100(%)1.3.1米制細牙螺紋(單位mm)螺紋標誌公稱直徑螺紋結合比(%)1009590858075706560M11.0000.780.790.810.820.830.840.850.860.87M1.11.1000.880.890.910.920.930.940.950.960.97M1.21.2000.980.991.011.021.031.041.051.061.07M1.41.4001.181.191.211.221.231.241.251.261.27M1.61.6001.381.391.411.421.431.441.451.461.47M1.81.8001.581.591.611.621.631.641.651.661.67M22.0001.731.741.761.771.781.801.811.821.84M2.22.2001.931.941.961.971.982.002.012.022.04M2.52.5002.122.142.162.182.202.222.242.252.27M33.0002.622.642.662.682.702.722.742.752.77M3.53.5003.123.143.163.183.203.223.243.253.27M44.0003.463.493.513.543.573.593.623.653.68M4.54.5003.963.994.014.044.074.094.124.154.18M55.0004.464.494.514.544.574.594.624.654.68M5.55.5004.964.995.015.045.075.095.125.155.18M66.0005.195.235.275.315.355.395.435.475.511.3.2米制粗牙螺紋(單位mm)螺紋標誌公稱直徑1009590858075706560M11.0000.730.740.760.770.780.800.810.820.84M1.11.1000.830.840.860.870.880.900.910.920.94M1.21.2000.930.940.960.970.981.001.011.021.04M1.41.4001.081.091.111.121.141.161.171.191.21M1.61.6001.221.241.261.281.301.321.331.351.37M1.81.8001.421.441.461.481.501.521.531.551.57M22.0001.571.591.611.631.651.681.701.721.74M2.22.2001.711.741.761.791.811.831.861.881.91M2.52.5002.012.042.062.092.112.132.162.182.21M3*0.53.0002.462.492.512.542.572.592.622.652.68M3.53.5002.852.882.922.952.983.013.053.083.11M4*0.74.0003.243.283.323.363.393.433.473.513.55M4.54.5003.693.733.773.813.853.893.933.974.01M5*0.85.0004.134.184.224.264.314.354.394.444.48M66.0004.924.975.035.085.135.195.245.305.351.3.3英制細牙螺紋(單位mm)螺紋標誌公稱直徑1009590858075706560No. 0-80 UNF1.5241.181.201.211.231.251.271.281.301.32No. 1-72 UNF1.8541.471.491.511.531.551.571.591.611.62No. 2-64 UNF2.1841.751.781.801.821.841.861.881.901.93No. 3-56 UNF2.5152.022.052.072.102.122.152.172.202.22No. 4-48 UNF2.8452.272.302.332.362.392.422.442.472.50No. 5-44 UNF3.1752.552.582.612.642.682.712.742.772.80No. 6-40 UNF3.5052.822.852.892.922.962.993.023.063.09No. 8-36 UNF4.1663.403.443.483.523.553.593.633.673.71No. 10-32 UNF4.8263.974.014.054.104.144.184.224.274.31No. 12-28 UNF5.4864.504.554.604.654.704.754.804.854.901.3.4英制粗牙螺紋(單位mm)螺紋標誌公稱直徑1009590858075706560No. 1-64 UNC1.8541.421.451.471.491.511.531.551.571.60No. 2-56 UNC2.1841.691.721.741.771.791.821.841.861.89No. 3-48 UNC2.5151.941.972.002.032.062.092.112.142.17No. 4-40 UNC2.8452.162.192.232.262.302.332.362.402.43No. 5-40 UNC3.1752.492.522.562.592.632.662.692.732.76No. 6-32 UNC3.5052.652.692.732.772.822.862.902.952.99No. 8-32 UNC4.1663.313.353.393.443.483.523.563.613.65No. 10-24 UNC4.8263.683.743.793.853.913.974.024.084.14No. 12-24 UNC5.4864.344.404.454.514.574.634.684.744.801.3.5板材上孔與板邊間距(對所有螺釘適用)板材上螺紋孔與板邊間距如圖要求b2t (b為孔與板邊的距離，t為板材厚度)1.4 配合尺寸同種規格的螺釘需與同種規格螺紋的螺母或與預攻同規格螺紋孔的鋼板配合如對M3的螺釘需與M3的螺母相配合，或者與在鋼板上攻出M3的螺紋孔相配合1.5 機械性能(包括材質與熱處理)一般用C0.20%的低碳鋼製造，拉伸強度要求不小於330MPa；硬度不小於95HV(90HB或52HRB)；屈服強度不小於190MPa；延伸率不小於25%部分螺釘拉力如下表：螺紋標誌M1.6M2M2.2M2.5M3M3.5M4M5M6最小拉力(N)4206206801120166022402900469066301.6 鋼板厚度(取決於螺釘與內螺紋的結合長度，鋼板厚度應大於實際螺紋要求之旋合長度，單位mm)螺紋標誌旋合長度M10.61.7M1.10.61.7M1.20.61.7M1.40.72M1.60.82.6M1.80.82.6M21.03M2.21.33.8M2.51.33.8M31.54.5M3.51.75M426M4.52.26.7M52.27.5M639M10.20.51.4M1.10.20.51.4M1.20.20.51.4M1.40.20.51.4M1.60.20.51.5M1.80.20.51.5M20.250.61.9M2.20.250.61.9M2.50.350.82.6M30.3513M3.50.3513M40.51.54.5M4.50.51.54.5M50.51.54.5M5.50.51.54.5M60.752.47.1 注：對薄材，鋼板厚度至少應大於23個螺距1.7 特殊螺釘1.7.1 自攻螺釘1.7.1.1 硬化層深度一般應進行表面硬化處理表面滲碳或碳氮共滲層深度如下表(單位mm)：螺紋標誌硬化層深度MinMax1-64 2-56 3-480.040.104-40 5-40 6-320.050.188-32 10-24 12-240.100.231.7.1.2 硬度表面滲碳或碳氮共滲處理后硬度之一般要求：表面硬度不小於45HRC 或450 HV芯部硬度2640HRC 270390 HV1.7.1.3 尺寸 自攻螺釘截面應為弧形三角形，如圖(L為導引長度，a為收尾長度)C、D值如下表 (單位inch)螺紋標誌CDMaxMinMaxMin00-900.04810.04610.04590.04390-800.06130.05930.05880.05681-640.07450.07250.07100.06902-560.08750.08400.08400.08053-480.10100.09750.09700.09354-400.11450.11150.10950.10605-400.12750.12400.12250.11906-320.14100.13600.13500.13008-320.16700.16200.16100.156010-240.19400.18900.18500.180010-320.19300.18800.18700.182012-240.22000.21500.21100.2060對螺紋長度大於1/6inch，L應為23個螺距；對螺紋長度小於1/6inch，L應為12個螺距對螺紋收尾長度應小於1個螺距1.7.1.4 工作扭力對不同厚度鋼板及預制孔，自攻螺釘之工作扭力如下表(單位 lbfinch)：螺紋標誌鋼板厚(inch)孔徑(inch)攻牙扭力第一次拆卸扭力攻螺紋后安裝扭力破壞扭力2-560.04690.07540.5112670.06250.07640.51128100.09380.07950.511211143-480.06250.0876123414150.09380.0897123515160.12500.0907124615184-400.03120.098612238110.06250.1029123415180.09380.10211123422275-400.06250.11112234522290.09380.11318344734410.12500.11620456838466-320.06250.12014344725300.09380.12020356935450.12500.12522466939458-320.09380.1473057101365750.12500.1504547111475850.18750.150458111620759510-240.09380.1723558141865800.12500.1724558141880900.18750.17255913172210011510-320.09380.17335913111480950.12500.1775091312161001200.18750.177701216192511514012-240.12500.196659121924951150.18750.1997591321261351550.25000.20385101421261501701.7.1.5結合比(%)與預衝孔呎寸(單位 inch)關係如表所示：結合比(%)100959085807570656055502-560.07440.07500.07560.07610.07670.07730.07790.07850.07900.07960.08023-480.08550.08610.08680.08750.08820.08880.08950.09020.09090.09160.09224-400.09580.09660.09740.09820.09900.09980.10060.10140.10230.10310.10395-400.10880.10960.11040.11120.11200.11280.11360.11440.11530.11610.11696-320.11770.11870.11970.12070.12180.12280.12380.12480.12580.12680.12788-320.14370.14470.14570.14670.14780.14880.14980.15080.15180.15280.153810-2