{"id":15105,"date":"2025-06-19T13:35:36","date_gmt":"2025-06-19T18:35:36","guid":{"rendered":"https:\/\/blog.misumiusa.com\/?page_id=15105"},"modified":"2025-06-26T10:31:22","modified_gmt":"2025-06-26T15:31:22","slug":"tap-size-chart","status":"publish","type":"page","link":"https:\/\/us.misumi-ec.com\/blog\/tap-size-chart\/","title":{"rendered":"Tap Size Chart \u2013 Drill Bit Sizes for UNC, UNF &#038; Metric Threads"},"content":{"rendered":"\n<p>When working with threaded holes, choosing the right tap size is essential for proper fit and function. A tap size chart helps match the correct drill bit to the tap being used, whether you&#8217;re working with UNC, UNF, or metric threads. This reference is a quick way to avoid common threading mistakes and ensure accurate machining.<\/p>\n\n\n\n<meta charset=\"UTF-8\">\n    <meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0\">\n    <style>\n        .tap-chart-container {\n            width: 100%;\n            max-width: 1200px;\n            margin: 0 auto;\n            font-family: Arial, sans-serif;\n            box-sizing: border-box;\n        }\n        \n        .tap-chart {\n            width: 100%;\n            border-collapse: collapse;\n            background-color: #fff;\n            box-shadow: 0 2px 8px rgba(0,0,0,0.1);\n            border-radius: 8px;\n            overflow: hidden;\n        }\n        \n        .tap-chart th {\n            background-color: #2c3e50;\n            color: white;\n            padding: 12px 8px;\n            text-align: center;\n            font-weight: 600;\n            font-size: 14px;\n            border-bottom: 2px solid #34495e;\n        }\n        \n        .tap-chart td {\n            padding: 10px 8px;\n            text-align: center;\n            border-bottom: 1px solid #ecf0f1;\n            font-size: 13px;\n            transition: all 0.2s ease;\n        }\n        \n        .tap-chart tbody tr {\n            transition: all 0.2s ease;\n        }\n        \n        .tap-chart tbody tr:hover {\n            background-color: #3498db;\n            color: white;\n            transform: scale(1.02);\n            box-shadow: 0 4px 12px rgba(52, 152, 219, 0.3);\n            z-index: 1;\n            position: relative;\n        }\n        \n        .tap-chart tbody tr:nth-child(even) {\n            background-color: #f8f9fa;\n        }\n        \n        .tap-chart tbody tr:nth-child(even):hover {\n            background-color: #3498db;\n        }\n        \n        .tap-chart tbody tr:hover td {\n            border-color: #2980b9;\n        }\n        \n        @media (max-width: 768px) {\n            .tap-chart th,\n            .tap-chart td {\n                padding: 8px 4px;\n                font-size: 12px;\n            }\n        }\n    <\/style>\n\n\n    <div class=\"tap-chart-container\">\n        <table class=\"tap-chart\">\n            <thead>\n                <tr>\n                    <th>Tap Size<\/th>\n                    <th>Diameter (in)<\/th>\n                    <th>Diameter (mm)<\/th>\n                    <th>Thread Count (TPI)<\/th>\n                    <th>Thread Pitch (mm)<\/th>\n                    <th>Tap Drill Size<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr><td>#0000-160<\/td><td>0.0210<\/td><td>0.53<\/td><td>160<\/td><td>0.159<\/td><td>0.0135<\/td><\/tr>\n                <tr><td>#000-120<\/td><td>0.0340<\/td><td>0.86<\/td><td>120<\/td><td>0.212<\/td><td>0.0225<\/td><\/tr>\n                <tr><td>M1x0.2<\/td><td>0.0394<\/td><td>1.00<\/td><td>127<\/td><td>0.200<\/td><td>0.031<\/td><\/tr>\n                <tr><td>M1x0.25<\/td><td>0.0394<\/td><td>1.00<\/td><td>102<\/td><td>0.250<\/td><td>0.030<\/td><\/tr>\n                <tr><td>M1.1&#215;0.25<\/td><td>0.0433<\/td><td>1.10<\/td><td>102<\/td><td>0.250<\/td><td>0.033<\/td><\/tr>\n                <tr><td>M1.1&#215;0.2<\/td><td>0.0433<\/td><td>1.10<\/td><td>127<\/td><td>0.200<\/td><td>0.035<\/td><\/tr>\n                <tr><td>#00-90<\/td><td>0.0470<\/td><td>1.19<\/td><td>90<\/td><td>0.282<\/td><td>0.0320<\/td><\/tr>\n                <tr><td>M1.2&#215;0.2<\/td><td>0.0472<\/td><td>1.20<\/td><td>127<\/td><td>0.200<\/td><td>0.039<\/td><\/tr>\n                <tr><td>M1.2&#215;0.25<\/td><td>0.0472<\/td><td>1.20<\/td><td>102<\/td><td>0.250<\/td><td>0.037<\/td><\/tr>\n                <tr><td>M1.4&#215;0.2<\/td><td>0.0551<\/td><td>1.40<\/td><td>127<\/td><td>0.200<\/td><td>0.047<\/td><\/tr>\n                <tr><td>M1.4&#215;0.3<\/td><td>0.0551<\/td><td>1.40<\/td><td>85<\/td><td>0.300<\/td><td>0.043<\/td><\/tr>\n                <tr><td>#0-80<\/td><td>0.0600<\/td><td>1.52<\/td><td>80<\/td><td>0.318<\/td><td>0.0469<\/td><\/tr>\n                <tr><td>M1.6&#215;0.2<\/td><td>0.0630<\/td><td>1.60<\/td><td>127<\/td><td>0.200<\/td><td>0.055<\/td><\/tr>\n                <tr><td>M1.6&#215;0.35<\/td><td>0.0630<\/td><td>1.60<\/td><td>73<\/td><td>0.350<\/td><td>0.049<\/td><\/tr>\n                <tr><td>M1.8&#215;0.2<\/td><td>0.0709<\/td><td>1.80<\/td><td>127<\/td><td>0.200<\/td><td>0.063<\/td><\/tr>\n                <tr><td>M1.8&#215;0.35<\/td><td>0.0709<\/td><td>1.80<\/td><td>73<\/td><td>0.350<\/td><td>0.057<\/td><\/tr>\n                <tr><td>#1-64<\/td><td>0.0730<\/td><td>1.85<\/td><td>64<\/td><td>0.397<\/td><td>0.0595<\/td><\/tr>\n                <tr><td>#1-72<\/td><td>0.0730<\/td><td>1.85<\/td><td>72<\/td><td>0.353<\/td><td>0.0635<\/td><\/tr>\n                <tr><td>M2x0.25<\/td><td>0.0787<\/td><td>2.00<\/td><td>102<\/td><td>0.250<\/td><td>0.069<\/td><\/tr>\n                <tr><td>M2x0.4<\/td><td>0.0787<\/td><td>2.00<\/td><td>64<\/td><td>0.400<\/td><td>0.063<\/td><\/tr>\n                <tr><td>#2-56<\/td><td>0.0860<\/td><td>2.18<\/td><td>56<\/td><td>0.454<\/td><td>0.0700<\/td><\/tr>\n                <tr><td>#2-64<\/td><td>0.0860<\/td><td>2.18<\/td><td>64<\/td><td>0.397<\/td><td>0.0730<\/td><\/tr>\n                <tr><td>M2.2&#215;0.25<\/td><td>0.0866<\/td><td>2.20<\/td><td>102<\/td><td>0.250<\/td><td>0.077<\/td><\/tr>\n                <tr><td>M2.2&#215;0.45<\/td><td>0.0866<\/td><td>2.20<\/td><td>56<\/td><td>0.450<\/td><td>0.069<\/td><\/tr>\n                <tr><td>M2.5&#215;0.35<\/td><td>0.0984<\/td><td>2.50<\/td><td>73<\/td><td>0.350<\/td><td>0.083<\/td><\/tr>\n                <tr><td>M2.5&#215;0.45<\/td><td>0.0984<\/td><td>2.50<\/td><td>56<\/td><td>0.450<\/td><td>0.079<\/td><\/tr>\n                <tr><td>#3-48<\/td><td>0.0990<\/td><td>2.51<\/td><td>48<\/td><td>0.529<\/td><td>0.0785<\/td><\/tr>\n                <tr><td>#3-56<\/td><td>0.0990<\/td><td>2.51<\/td><td>56<\/td><td>0.454<\/td><td>0.0820<\/td><\/tr>\n                <tr><td>#4-40<\/td><td>0.1120<\/td><td>2.84<\/td><td>40<\/td><td>0.635<\/td><td>0.0890<\/td><\/tr>\n                <tr><td>#4-48<\/td><td>0.1120<\/td><td>2.84<\/td><td>48<\/td><td>0.529<\/td><td>0.0935<\/td><\/tr>\n                <tr><td>M3x0.35<\/td><td>0.1181<\/td><td>3.00<\/td><td>73<\/td><td>0.350<\/td><td>0.104<\/td><\/tr>\n                <tr><td>M3x0.5<\/td><td>0.1181<\/td><td>3.00<\/td><td>51<\/td><td>0.500<\/td><td>0.098<\/td><\/tr>\n                <tr><td>#5-40<\/td><td>0.1250<\/td><td>3.18<\/td><td>40<\/td><td>0.635<\/td><td>0.1015<\/td><\/tr>\n                <tr><td>#5-44<\/td><td>0.1250<\/td><td>3.18<\/td><td>44<\/td><td>0.577<\/td><td>0.1040<\/td><\/tr>\n                <tr><td>M3.5&#215;0.35<\/td><td>0.1378<\/td><td>3.50<\/td><td>73<\/td><td>0.350<\/td><td>0.122<\/td><\/tr>\n                <tr><td>M3.5&#215;0.6<\/td><td>0.1378<\/td><td>3.50<\/td><td>42<\/td><td>0.600<\/td><td>0.114<\/td><\/tr>\n                <tr><td>#6-32<\/td><td>0.1380<\/td><td>3.51<\/td><td>32<\/td><td>0.794<\/td><td>0.1065<\/td><\/tr>\n                <tr><td>#6-40<\/td><td>0.1380<\/td><td>3.51<\/td><td>40<\/td><td>0.635<\/td><td>0.1130<\/td><\/tr>\n                <tr><td>M4x0.35<\/td><td>0.1575<\/td><td>4.00<\/td><td>73<\/td><td>0.350<\/td><td>0.142<\/td><\/tr>\n                <tr><td>M4x0.5<\/td><td>0.1575<\/td><td>4.00<\/td><td>51<\/td><td>0.500<\/td><td>0.138<\/td><\/tr>\n                <tr><td>M4x0.7<\/td><td>0.1575<\/td><td>4.00<\/td><td>36<\/td><td>0.700<\/td><td>0.130<\/td><\/tr>\n                <tr><td>#8-32<\/td><td>0.1640<\/td><td>4.17<\/td><td>32<\/td><td>0.794<\/td><td>0.1360<\/td><\/tr>\n                <tr><td>#8-36<\/td><td>0.1640<\/td><td>4.17<\/td><td>36<\/td><td>0.706<\/td><td>0.1405<\/td><\/tr>\n                <tr><td>M4.5&#215;0.5<\/td><td>0.1772<\/td><td>4.50<\/td><td>51<\/td><td>0.500<\/td><td>0.157<\/td><\/tr>\n                <tr><td>M4.5&#215;0.75<\/td><td>0.1772<\/td><td>4.50<\/td><td>34<\/td><td>0.750<\/td><td>0.146<\/td><\/tr>\n                <tr><td>#10-32<\/td><td>0.1900<\/td><td>4.83<\/td><td>32<\/td><td>0.794<\/td><td>0.1590<\/td><\/tr>\n                <tr><td>#10-24<\/td><td>0.1900<\/td><td>4.83<\/td><td>24<\/td><td>1.058<\/td><td>0.1495<\/td><\/tr>\n                <tr><td>M5x0.5<\/td><td>0.1969<\/td><td>5.00<\/td><td>51<\/td><td>0.500<\/td><td>0.177<\/td><\/tr>\n                <tr><td>M5x0.8<\/td><td>0.1969<\/td><td>5.00<\/td><td>32<\/td><td>0.800<\/td><td>0.165<\/td><\/tr>\n                <tr><td>#12-24<\/td><td>0.2160<\/td><td>5.49<\/td><td>24<\/td><td>1.058<\/td><td>0.1770<\/td><\/tr>\n                <tr><td>#12-28<\/td><td>0.2160<\/td><td>5.49<\/td><td>28<\/td><td>0.907<\/td><td>0.1820<\/td><\/tr>\n                <tr><td>M5.5&#215;0.5<\/td><td>0.2165<\/td><td>5.50<\/td><td>51<\/td><td>0.500<\/td><td>0.197<\/td><\/tr>\n                <tr><td>M6x0.5<\/td><td>0.2362<\/td><td>6.00<\/td><td>51<\/td><td>0.500<\/td><td>0.217<\/td><\/tr>\n                <tr><td>M6x0.75<\/td><td>0.2362<\/td><td>6.00<\/td><td>34<\/td><td>0.750<\/td><td>0.205<\/td><\/tr>\n                <tr><td>M6x1<\/td><td>0.2362<\/td><td>6.00<\/td><td>25<\/td><td>1.000<\/td><td>0.197<\/td><\/tr>\n                <tr><td>1\/4-20<\/td><td>0.2500<\/td><td>6.35<\/td><td>20<\/td><td>1.270<\/td><td>0.2010<\/td><\/tr>\n                <tr><td>1\/4-28<\/td><td>0.2500<\/td><td>6.35<\/td><td>28<\/td><td>0.907<\/td><td>0.2130<\/td><\/tr>\n                <tr><td>M7x0.75<\/td><td>0.2756<\/td><td>7.00<\/td><td>34<\/td><td>0.750<\/td><td>0.244<\/td><\/tr>\n                <tr><td>M7x1<\/td><td>0.2756<\/td><td>7.00<\/td><td>25<\/td><td>1.000<\/td><td>0.236<\/td><\/tr>\n                <tr><td>5\/16-18<\/td><td>0.3125<\/td><td>7.94<\/td><td>18<\/td><td>1.411<\/td><td>0.2570<\/td><\/tr>\n                <tr><td>5\/16-24<\/td><td>0.3125<\/td><td>7.94<\/td><td>24<\/td><td>1.058<\/td><td>0.2720<\/td><\/tr>\n                <tr><td>M8x0.5<\/td><td>0.3150<\/td><td>8.00<\/td><td>51<\/td><td>0.500<\/td><td>0.295<\/td><\/tr>\n                <tr><td>M8x0.75<\/td><td>0.3150<\/td><td>8.00<\/td><td>34<\/td><td>0.750<\/td><td>0.284<\/td><\/tr>\n                <tr><td>M8x1<\/td><td>0.3150<\/td><td>8.00<\/td><td>25<\/td><td>1.000<\/td><td>0.276<\/td><\/tr>\n                <tr><td>M8x1.25<\/td><td>0.3150<\/td><td>8.00<\/td><td>20<\/td><td>1.250<\/td><td>0.267<\/td><\/tr>\n                <tr><td>M9x0.75<\/td><td>0.3543<\/td><td>9.00<\/td><td>34<\/td><td>0.750<\/td><td>0.323<\/td><\/tr>\n                <tr><td>M9x1<\/td><td>0.3543<\/td><td>9.00<\/td><td>25<\/td><td>1.000<\/td><td>0.315<\/td><\/tr>\n                <tr><td>M9x1.25<\/td><td>0.3543<\/td><td>9.00<\/td><td>20<\/td><td>1.250<\/td><td>0.307<\/td><\/tr>\n                <tr><td>3\/8-24<\/td><td>0.3750<\/td><td>9.53<\/td><td>24<\/td><td>1.058<\/td><td>0.3320<\/td><\/tr>\n                <tr><td>3\/8-16<\/td><td>0.3750<\/td><td>9.53<\/td><td>16<\/td><td>1.588<\/td><td>0.3125<\/td><\/tr>\n                <tr><td>M10x0.75<\/td><td>0.3937<\/td><td>10.00<\/td><td>34<\/td><td>0.750<\/td><td>0.362<\/td><\/tr>\n                <tr><td>M10x1.5<\/td><td>0.3937<\/td><td>10.00<\/td><td>17<\/td><td>1.500<\/td><td>0.335<\/td><\/tr>\n                <tr><td>M10x1.25<\/td><td>0.3937<\/td><td>10.00<\/td><td>20<\/td><td>1.250<\/td><td>0.346<\/td><\/tr>\n                <tr><td>M10x1<\/td><td>0.3937<\/td><td>10.00<\/td><td>25<\/td><td>1.000<\/td><td>0.354<\/td><\/tr>\n                <tr><td>M11x0.75<\/td><td>0.4331<\/td><td>11.00<\/td><td>34<\/td><td>0.750<\/td><td>0.402<\/td><\/tr>\n                <tr><td>M11x1<\/td><td>0.4331<\/td><td>11.00<\/td><td>25<\/td><td>1.000<\/td><td>0.394<\/td><\/tr>\n                <tr><td>M11x1.5<\/td><td>0.4331<\/td><td>11.00<\/td><td>17<\/td><td>1.500<\/td><td>0.374<\/td><\/tr>\n                <tr><td>7\/16-14<\/td><td>0.4375<\/td><td>11.11<\/td><td>14<\/td><td>1.814<\/td><td>0.3680<\/td><\/tr>\n                <tr><td>7\/16-20<\/td><td>0.4375<\/td><td>11.11<\/td><td>20<\/td><td>1.270<\/td><td>0.3906<\/td><\/tr>\n                <tr><td>M12x1.5<\/td><td>0.4724<\/td><td>12.00<\/td><td>17<\/td><td>1.500<\/td><td>0.413<\/td><\/tr>\n                <tr><td>M12x1.75<\/td><td>0.4724<\/td><td>12.00<\/td><td>15<\/td><td>1.750<\/td><td>0.402<\/td><\/tr>\n                <tr><td>M12x0.75<\/td><td>0.4724<\/td><td>12.00<\/td><td>34<\/td><td>0.750<\/td><td>0.441<\/td><\/tr>\n                <tr><td>M12x1<\/td><td>0.4724<\/td><td>12.00<\/td><td>25<\/td><td>1.000<\/td><td>0.433<\/td><\/tr>\n                <tr><td>M12x1.25<\/td><td>0.4724<\/td><td>12.00<\/td><td>20<\/td><td>1.250<\/td><td>0.425<\/td><\/tr>\n                <tr><td>1\/2-20<\/td><td>0.5000<\/td><td>12.70<\/td><td>20<\/td><td>1.270<\/td><td>0.4531<\/td><\/tr>\n                <tr><td>1\/2-13<\/td><td>0.5000<\/td><td>12.70<\/td><td>13<\/td><td>1.954<\/td><td>0.4219<\/td><\/tr>\n                <tr><td>M14x1.5<\/td><td>0.5512<\/td><td>14.00<\/td><td>17<\/td><td>1.500<\/td><td>0.492<\/td><\/tr>\n                <tr><td>M14x1.25<\/td><td>0.5512<\/td><td>14.00<\/td><td>20<\/td><td>1.250<\/td><td>0.504<\/td><\/tr>\n                <tr><td>M14x1<\/td><td>0.5512<\/td><td>14.00<\/td><td>25<\/td><td>1.000<\/td><td>0.512<\/td><\/tr>\n                <tr><td>M14x2<\/td><td>0.5512<\/td><td>14.00<\/td><td>13<\/td><td>2.000<\/td><td>0.472<\/td><\/tr>\n                <tr><td>9\/16-18<\/td><td>0.5625<\/td><td>14.29<\/td><td>18<\/td><td>1.411<\/td><td>0.5070<\/td><\/tr>\n                <tr><td>9\/16-12<\/td><td>0.5625<\/td><td>14.29<\/td><td>12<\/td><td>2.117<\/td><td>0.4844<\/td><\/tr>\n                <tr><td>M15x1<\/td><td>0.5906<\/td><td>15.00<\/td><td>25<\/td><td>1.000<\/td><td>0.551<\/td><\/tr>\n                <tr><td>M15x1.5<\/td><td>0.5906<\/td><td>15.00<\/td><td>17<\/td><td>1.500<\/td><td>0.531<\/td><\/tr>\n                <tr><td>5\/8-18<\/td><td>0.6250<\/td><td>15.88<\/td><td>18<\/td><td>1.411<\/td><td>0.5781<\/td><\/tr>\n                <tr><td>5\/8-11<\/td><td>0.6250<\/td><td>15.88<\/td><td>11<\/td><td>2.309<\/td><td>0.5312<\/td><\/tr>\n                <tr><td>M16x2<\/td><td>0.6299<\/td><td>16.00<\/td><td>13<\/td><td>2.000<\/td><td>0.551<\/td><\/tr>\n                <tr><td>M16x1.5<\/td><td>0.6299<\/td><td>16.00<\/td><td>17<\/td><td>1.500<\/td><td>0.571<\/td><\/tr>\n                <tr><td>M16x1<\/td><td>0.6299<\/td><td>16.00<\/td><td>25<\/td><td>1.000<\/td><td>0.591<\/td><\/tr>\n                <tr><td>M17x1<\/td><td>0.6693<\/td><td>17.00<\/td><td>25<\/td><td>1.000<\/td><td>0.630<\/td><\/tr>\n                <tr><td>M17x1.5<\/td><td>0.6693<\/td><td>17.00<\/td><td>17<\/td><td>1.500<\/td><td>0.610<\/td><\/tr>\n                <tr><td>M18x2.5<\/td><td>0.7087<\/td><td>18.00<\/td><td>10<\/td><td>2.500<\/td><td>0.610<\/td><\/tr>\n                <tr><td>M18x1<\/td><td>0.7087<\/td><td>18.00<\/td><td>25<\/td><td>1.000<\/td><td>0.669<\/td><\/tr>\n                <tr><td>M18x1.5<\/td><td>0.7087<\/td><td>18.00<\/td><td>17<\/td><td>1.500<\/td><td>0.650<\/td><\/tr>\n                <tr><td>M18x2<\/td><td>0.7087<\/td><td>18.00<\/td><td>13<\/td><td>2.000<\/td><td>0.630<\/td><\/tr>\n                <tr><td>3\/4-16<\/td><td>0.7500<\/td><td>19.05<\/td><td>16<\/td><td>1.588<\/td><td>0.6875<\/td><\/tr>\n                <tr><td>3\/4-10<\/td><td>0.7500<\/td><td>19.05<\/td><td>10<\/td><td>2.540<\/td><td>0.6562<\/td><\/tr>\n                <tr><td>M20x2<\/td><td>0.7874<\/td><td>20.00<\/td><td>13<\/td><td>2.000<\/td><td>0.709<\/td><\/tr>\n                <tr><td>M20x1.5<\/td><td>0.7874<\/td><td>20.00<\/td><td>17<\/td><td>1.500<\/td><td>0.728<\/td><\/tr>\n                <tr><td>M20x1<\/td><td>0.7874<\/td><td>20.00<\/td><td>25<\/td><td>1.000<\/td><td>0.748<\/td><\/tr>\n                <tr><td>M20x2.5<\/td><td>0.7874<\/td><td>20.00<\/td><td>10<\/td><td>2.500<\/td><td>0.689<\/td><\/tr>\n                <tr><td>M22x2<\/td><td>0.8661<\/td><td>22.00<\/td><td>13<\/td><td>2.000<\/td><td>0.787<\/td><\/tr>\n                <tr><td>M22x1.5<\/td><td>0.8661<\/td><td>22.00<\/td><td>17<\/td><td>1.500<\/td><td>0.807<\/td><\/tr>\n                <tr><td>M22x1<\/td><td>0.8661<\/td><td>22.00<\/td><td>25<\/td><td>1.000<\/td><td>0.827<\/td><\/tr>\n                <tr><td>M22x2.5<\/td><td>0.8661<\/td><td>22.00<\/td><td>10<\/td><td>2.500<\/td><td>0.768<\/td><\/tr>\n                <tr><td>7\/8-9<\/td><td>0.8750<\/td><td>22.23<\/td><td>9<\/td><td>2.822<\/td><td>0.7656<\/td><\/tr>\n                <tr><td>7\/8-14<\/td><td>0.8750<\/td><td>22.23<\/td><td>14<\/td><td>1.814<\/td><td>0.8125<\/td><\/tr>\n                <tr><td>M24x3<\/td><td>0.9449<\/td><td>24.00<\/td><td>8<\/td><td>3.000<\/td><td>0.827<\/td><\/tr>\n                <tr><td>M24x1<\/td><td>0.9449<\/td><td>24.00<\/td><td>25<\/td><td>1.000<\/td><td>0.906<\/td><\/tr>\n                <tr><td>M24x1.5<\/td><td>0.9449<\/td><td>24.00<\/td><td>17<\/td><td>1.500<\/td><td>0.886<\/td><\/tr>\n                <tr><td>M24x2<\/td><td>0.9449<\/td><td>24.00<\/td><td>13<\/td><td>2.000<\/td><td>0.866<\/td><\/tr>\n                <tr><td>M25x2<\/td><td>0.9843<\/td><td>25.00<\/td><td>13<\/td><td>2.000<\/td><td>0.906<\/td><\/tr>\n                <tr><td>M25x1<\/td><td>0.9843<\/td><td>25.00<\/td><td>25<\/td><td>1.000<\/td><td>0.945<\/td><\/tr>\n                <tr><td>M25x1.5<\/td><td>0.9843<\/td><td>25.00<\/td><td>17<\/td><td>1.500<\/td><td>0.925<\/td><\/tr>\n                <tr><td>1-14<\/td><td>1.0000<\/td><td>25.40<\/td><td>14<\/td><td>1.814<\/td><td>0.9375<\/td><\/tr>\n                <tr><td>1-8<\/td><td>1.0000<\/td><td>25.40<\/td><td>8<\/td><td>3.175<\/td><td>0.8750<\/td><\/tr>\n                <tr><td>M26x1.5<\/td><td>1.0236<\/td><td>26.00<\/td><td>17<\/td><td>1.500<\/td><td>0.965<\/td><\/tr>\n                <tr><td>M27x1.5<\/td><td>1.0630<\/td><td>27.00<\/td><td>17<\/td><td>1.500<\/td><td>1.004<\/td><\/tr>\n                <tr><td>M27x3<\/td><td>1.0630<\/td><td>27.00<\/td><td>8<\/td><td>3.000<\/td><td>0.945<\/td><\/tr>\n                <tr><td>M27x1<\/td><td>1.0630<\/td><td>27.00<\/td><td>25<\/td><td>1.000<\/td><td>1.024<\/td><\/tr>\n                <tr><td>M27x2<\/td><td>1.0630<\/td><td>27.00<\/td><td>13<\/td><td>2.000<\/td><td>0.984<\/td><\/tr>\n                <tr><td>M28x2<\/td><td>1.1024<\/td><td>28.00<\/td><td>13<\/td><td>2.000<\/td><td>1.024<\/td><\/tr>\n                <tr><td>M28x1<\/td><td>1.1024<\/td><td>28.00<\/td><td>25<\/td><td>1.000<\/td><td>1.063<\/td><\/tr>\n                <tr><td>M28x1.5<\/td><td>1.1024<\/td><td>28.00<\/td><td>17<\/td><td>1.500<\/td><td>1.043<\/td><\/tr>\n                <tr><td>1 1\/8-12<\/td><td>1.1250<\/td><td>28.58<\/td><td>12<\/td><td>2.117<\/td><td>1.0469<\/td><\/tr>\n                <tr><td>1 1\/8-7<\/td><td>1.1250<\/td><td>28.58<\/td><td>7<\/td><td>3.629<\/td><td>0.9844<\/td><\/tr>\n                <tr><td>M30x1.5<\/td><td>1.1811<\/td><td>30.00<\/td><td>17<\/td><td>1.500<\/td><td>1.122<\/td><\/tr>\n                <tr><td>M30x3.5<\/td><td>1.1811<\/td><td>30.00<\/td><td>7<\/td><td>3.500<\/td><td>1.043<\/td><\/tr>\n                <tr><td>M30x2<\/td><td>1.1811<\/td><td>30.00<\/td><td>13<\/td><td>2.000<\/td><td>1.102<\/td><\/tr>\n                <tr><td>1 1\/4-12<\/td><td>1.2500<\/td><td>31.75<\/td><td>12<\/td><td>2.117<\/td><td>1.1719<\/td><\/tr>\n                <tr><td>1 1\/4-7<\/td><td>1.2500<\/td><td>31.75<\/td><td>7<\/td><td>3.629<\/td><td>1.1094<\/td><\/tr>\n                <tr><td>M33x2<\/td><td>1.2992<\/td><td>33.00<\/td><td>13<\/td><td>2.000<\/td><td>1.220<\/td><\/tr>\n                <tr><td>M33x3.5<\/td><td>1.2992<\/td><td>33.00<\/td><td>7<\/td><td>3.500<\/td><td>1.161<\/td><\/tr>\n                <tr><td>M36x3<\/td><td>1.4173<\/td><td>36.00<\/td><td>8<\/td><td>3.000<\/td><td>1.260<\/td><\/tr>\n                <tr><td>M36x4<\/td><td>1.4173<\/td><td>36.00<\/td><td>6<\/td><td>4.000<\/td><td>1.181<\/td><\/tr>\n                <tr><td>1 1\/2-12<\/td><td>1.5000<\/td><td>38.10<\/td><td>12<\/td><td>2.117<\/td><td>1.4219<\/td><\/tr>\n                <tr><td>1 1\/2-6<\/td><td>1.5000<\/td><td>38.10<\/td><td>6<\/td><td>4.233<\/td><td>1.3438<\/td><\/tr>\n                <tr><td>M39x4<\/td><td>1.5354<\/td><td>39.00<\/td><td>6<\/td><td>4.000<\/td><td>1.378<\/td><\/tr>\n                <tr><td>M39x3<\/td><td>1.5354<\/td><td>39.00<\/td><td>8<\/td><td>3.000<\/td><td>1.417<\/td><\/tr>\n                <tr><td>M42x4.5<\/td><td>1.6535<\/td><td>42.00<\/td><td>6<\/td><td>4.500<\/td><td>1.476<\/td><\/tr>\n                <tr><td>1 3\/4-12<\/td><td>1.7500<\/td><td>44.45<\/td><td>12<\/td><td>2.117<\/td><td>1.6719<\/td><\/tr>\n                <tr><td>1 3\/4-5<\/td><td>1.7500<\/td><td>44.45<\/td><td>5<\/td><td>5.080<\/td><td>1.5938<\/td><\/tr>\n                <tr><td>M45x4.5<\/td><td>1.7717<\/td><td>45.00<\/td><td>6<\/td><td>4.500<\/td><td>1.594<\/td><\/tr>\n                <tr><td>M48x5<\/td><td>1.8898<\/td><td>48.00<\/td><td>5<\/td><td>5.000<\/td><td>1.693<\/td><\/tr>\n                <tr><td>2-12<\/td><td>2.0000<\/td><td>50.80<\/td><td>12<\/td><td>2.117<\/td><td>1.9219<\/td><\/tr>\n                <tr><td>2-4.5<\/td><td>2.0000<\/td><td>50.80<\/td><td>4.5<\/td><td>5.644<\/td><td>1.8125<\/td><\/tr>\n                <tr><td>M52x5<\/td><td>2.0472<\/td><td>52.00<\/td><td>5<\/td><td>5.000<\/td><td>1.850<\/td><\/tr>\n                <tr><td>M56x5.5<\/td><td>2.2047<\/td><td>56.00<\/td><td>5<\/td><td>5.500<\/td><td>1.968<\/td><\/tr>\n                <tr><td>M60x5.5<\/td><td>2.3622<\/td><td>60.00<\/td><td>5<\/td><td>5.500<\/td><td>2.126<\/td><\/tr>\n                <tr><td>M64x6<\/td><td>2.5197<\/td><td>64.00<\/td><td>4<\/td><td>6.000<\/td><td>2.244<\/td><\/tr>\n                <tr><td>M68x6<\/td><td>2.6772<\/td><td>68.00<\/td><td>4<\/td><td>6.000<\/td><td>2.402<\/td><\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\n\n\n\n<p><\/p>\n\n\n\n<h2>Parting Thoughts<\/h2>\n\n\n\n<p><a href=\"https:\/\/us.misumi-ec.com\/\">MISUMI USA<\/a>&nbsp;offers a wide range of threading tools and hand taps\u2014both standard and configurable\u2014including forming taps, hand taps, spiral taps, and more. If you\u2019re unsure which threading product best suits your application, our engineering team is&nbsp;<a href=\"https:\/\/us.misumi-ec.com\/service\/info\/help-center\/product-support.html\">here to help<\/a>. For more technical insights, explore our other manufacturing-focused tables and articles, such as a <a href=\"https:\/\/us.misumi-ec.com\/blog\/machine-screw-diameters-and-dimensions\/\" title=\"\">machine screw size chart<\/a>.<\/p>\n\n\n\n<style>\n.tap-cta {\n    display: inline-flex;\n    align-items: center;\n    padding: 12px 24px;\n    background: linear-gradient(135deg, #FFD700 0%, #FFC107 100%);\n    color: #003366;\n    text-decoration: none;\n    border-radius: 6px;\n    font-weight: 600;\n    font-size: 16px;\n    letter-spacing: 0.5px;\n    transition: all 0.3s ease;\n    box-shadow: 0 4px 12px rgba(255, 215, 0, 0.3);\n    border: 2px solid #0066CC;\n    cursor: pointer;\n    text-transform: uppercase;\n}\n\n.tap-cta:hover {\n    background: linear-gradient(135deg, #FFC107 0%, #FFB300 100%);\n    border-color: #004499;\n    transform: translateY(-2px);\n    box-shadow: 0 6px 16px rgba(255, 215, 0, 0.4);\n}\n\n.tap-cta:active {\n    transform: translateY(0);\n    box-shadow: 0 2px 8px rgba(255, 215, 0, 0.3);\n}\n\n.cta-icon {\n    margin-right: 8px;\n    font-size: 18px;\n}\n<\/style>\n\n<a href=\"https:\/\/us.misumi-ec.com\/vona2\/fs_machining\/T0108000000\" class=\"tap-cta\">\n    <span class=\"cta-icon\">\u2699<\/span>\n    Browse Threading Products\n<\/a>\n\n\n\n<p><\/p>\n\n\n\n<p>Author:&nbsp;<a href=\"https:\/\/us.misumi-ec.com\/blog\/author\/sbredemann\/\">Scott Bredemann<\/a>&nbsp;| Updated: 6\/17\/2025<\/p>\n\n\n\n<p class=\"has-small-font-size\"><strong>Disclaimer:<br><\/strong>The content on this webpage is for informational purposes only. MISUMI makes no guarantees, expressed or implied, regarding the accuracy, completeness, or validity of the information. Performance parameters, tolerances, designs, materials, or processes should not be assumed to reflect third-party suppliers\u2019 or manufacturers\u2019 deliverables within MISUMI\u2019s network. Buyers are responsible for specifying their part requirements<\/p>\n","protected":false},"excerpt":{"rendered":"<p>When working with threaded holes, choosing the right tap size is essential for proper fit and function. A tap size chart helps match the correct drill bit to the tap being used, whether you&#8217;re working with UNC, UNF, or metric threads. This reference is a quick way to avoid common threading mistakes and ensure accurate machining. Tap Size Diameter (in) [&hellip;]<\/p>\n","protected":false},"author":70,"featured_media":15116,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"om_disable_all_campaigns":false},"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15105"}],"collection":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/users\/70"}],"replies":[{"embeddable":true,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/comments?post=15105"}],"version-history":[{"count":5,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15105\/revisions"}],"predecessor-version":[{"id":15132,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/pages\/15105\/revisions\/15132"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/media\/15116"}],"wp:attachment":[{"href":"https:\/\/us.misumi-ec.com\/blog\/wp-json\/wp\/v2\/media?parent=15105"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}