1 4 28 thread dimension

SOCETS THREAD DIMENSIONS Class 3A

29 rows nbsp 0183 32 12 2 2013 nbsp 0183 32 1 8 quot bspp 9 728 0 907 28 9 147 8 566 0 581 8 70 g1 4 1 4 quot bspp 27 10 2021 nbsp 0183 32 The UNF 1 4 quot thread has an outer diameter of 6 35 mm the M 6 thread has precisely 6 mm work tolerances are possible We recommend to use only the UNF 1 4 quot 28 G thread to avoid confusion and double inventory Thread Major Diameter Thread Per Inch Pitch Diameter Minor Diameter Male Thread Minor Diameter Thread No 12 0 2160 32 0 1957 0 1788 0 1822 1 4 0 2500 2087 5 30 1 28 1 4 2160 5 49 12 24 28 32 2188 5 56 7 32 quot 28 2362 6 00 M6 1 0 0 75 0 25 1 2 2500 6 Dia Thread Pitch in mm Coarse Fine THREAD SIZE COMPARISON CHART Dia Siz e Gau ge Si e ge BRITISH No of Threads Inch BA BSW BSF BSP Major Dia Inch mm 19 Jan 2018 AT 4 R3 36 Thread size refers to the nominal bore of the pipe Subtract approx 1 4″ 6mm from thread diameter measurement for nominal pipe size Pitch is Threads Per Inch TPI Gas R amp G also refer to BSP Male Iron Pipe may be BSP or NPT

1 4 quot 28 Taper Thread Grease Fittings 1 4 quot 28 Zerk

1 4 28 2a 0 2490 0 2425 0 2258 0 2225 0 2064 0 03640 5 16 24 2a 0 3114 0 3042 0 2843 0 2806 0 2618 0 05800 3 8 24 2a 0 3739 0 3667 0 3468 0 3430 0 3243 0 08780 7 16 20 2a 0 4362 0 4281 0 4037 0 3995 0 3767 0 10600 1 2 20 Steel machine screws which have a nominal diameter smaller than 4 are not subject to tensile testing No 4 and No 5 machine screws which are shorter than 1 2 are not subject to tensile testing Steel machine screws of diameters No 6 to 1 2 1 4 0 25 6 35 1 8 quot npt 27 21 64 0 3281 8 3344 q 0 332 8 4328 11 32 0 3438 8 7313 1 4 quot npt 18 27 64 0 4219 10 7156 7 16 0 4375 11 1125 7 16 0 4375 11 1125 3 8 quot npt 18 9 16 0 5625 14 2875 37 64 0 5781 14 6844 19 32 0 5938 15 0813 1 2 quot npt 14 11 16 0 6875 17 4625 45 64 0 7031 17 8594 23 32 0 7188 18 2563 3 4 quot npt 14 57 64 0 8906 1 4 quot 28 SAE LT fittings are engineered to thread into a 1 4 quot 28 UNF 3B straight threaded hole These fittings are common for automotive and standard duty industrial applications The 3014 B and 1698 B have extended shank lengths for deep seated bearings Tap size NF NC UNF UNC Threads per inch Basic major dia inches Basic effective dia inches Basic minor dia of ext threads inches Basic minor dia of int threads inches

UN imperial screw thread calculator

95 rows nbsp 0183 32 1 0787 1 1250 1 1 4 7 2b 1 2500 1 0950 1 123 1 1572 1 1668 1 2500 1 1 4 12 size tpi major ext minor int tap drill 1 8 quot 28 9 728 8 566 8 70 1 4 quot 19 13 157 11 445 11 60 3 8 quot 19 16 662 14 950 15 00 1 2 quot 14 20 955 18 631 19 00Male thread size inch thread size inch Major diameter mm Minor diameter mm TPI R 1 16 Rp 1 16 7 723 6 490 28 R 1 8 Rp 1 8 9 728 8 495 28 R 1 4dimension 37 176 angle will be approximately 45 176 after rolling If the 45 176 is critical and a compound angle is not feasible the chamfer may require machining after roll threading Unless otherwise specified thread lengths given will be assumed to be minimum required full threads Coarse Thread Thread Size Blank Diameter 177 001 Recommended 7 8 Inch BSP Outlet thread on 3 4 inch outside tap we have a brass tap connector for this size 1 Inch BSP Domestic heating boilers and hot water cylinders urinal flush valves 1 1 4 Inch BSP Wash hand basin wastes bathroom sink 1 1 2 Inch BSP Kitchen sink wastes bath wastes toilet syphon outlets central heating pumps

NPT amp NPTF NPS amp NPSF Drill Size Pitch Drill Size TPI

UNF – Unified National Fine Thread and Male UNC UNF threads are both parallel The UNC UNF flank angle is 60 176 Unified threads comes in three different classes for applications where a liberal tolerance is required to permit easy assembly even with slightly nicked threads most commonly used class for general applications External thread th Designation of thread Number of threads in 25 4 mm Pitch P Height of thread h major d D pitch d2 D2 minor d1 D1 Lower deviation British Standard Pipe Taper BSPT Threads Size Chart Thick ness mm 1 16 28 0 907 7 723 0 304 4 1 8 28 0 907 9 728 0 383 4 6 10 2 0 4 2 1 4 19 1 337 13 157 0 518 6 8 13 5 0 53 2 3g1 8 1 8 quot bspp 9 728 0 907 28 9 147 8 566 0 581 8 70 g1 4 1 4 quot bspp 13 157 1 337 19 12 301 11 445 0 856 11 60 g3 8 3 8 quot bspp 16 662 1 337 19 15 806 14 950 0 856 15 00 g1 2 1 2 quot bspp 20 955 1 814 14 19 793 18 631 1 162 19 00 g5 8 5 8 quot bspp 22 911 1 814 14 Thread Height Male Thread h3 Thread Height Thread H1 Sorted by thread class Click here to return to the thread data chart page index ISO Metric profile External 0 4 M0 4x0 1 M0 4x0 1 0 1 6g 0 4 0 382 0 335 0 319 0 28

Unified Screw Threads Standard Series

Thread ring gauge NO GO UNF 1 4 quot x 28 tolerance 2A thread ring gauge right thread ANSI ASME B1 1 B1 2 dimension 1 4 quot Pitch 28 hardened 95 rows nbsp 0183 32 1 0631 1 0210 1 1 4 7 2a 1 2500 1 2478 1 2314 1 1550 1 1476 1 0725 1 1 4 www northwestfastener com 13 Threads 1 75mm 11320 FM 529 RD BLDG F HOUSTON TEXAS 77041 TEL 713 896 1166 FAX 713 896 7879 Thread Chart Threads Per Inch TPI Nominal thread sizes from 15 16 12 UN to 1 3 16 28 UN 1 1 4 7 UNC to 1 9 16 20 UN Nominal thread sizes from 1 1 4 7 UNC to 1 9 16 20 UN 1 5 8 6 UN to 1 15 16 20 UN Nominal thread sizes from 1 5 8 6 UN to 1 15 16 20 UN 2 4 189 UNC to 2 190 20 UN Nominal Nominal thread sizes from 15 16 12 UN to 1 3 16 28 UN 1 1 4 7 UNC to 1 9 16 20 UN Nominal thread sizes from 1 1 4 7 UNC to 1 9 16 20 UN 1 5 8 6 UN to 1 15 16 20 UN Nominal thread sizes from 1 5 8 6 UN to 1 15 16 20 UN 2 4 189 UNC to 2 190 20 UN Nominal thread sizes from 2 4 189 UNC to 2 190 20 UN 2 7 8 6 UN to 4 16 UN