21.040.20 英制螺纹 标准查询与下载

CSN 25 4141-1964 圆柱型螺纹穿过型量规．英制螺纹 直径 W 1 3/8” — W 3”

Cylindrical thread "GO" gauges. Whitworth thread. Diameter W 1 3/8" - W 3"

CSN 25 4144-1964 非穿过型/圆柱型螺纹规限制的测量部件．惠氏螺纹 W 1/8"到W 3"直径

Measuring parts of "NOT GO" limits of cylindrical thread gauges. Whitworth thread. Diameter W 1/8" - W 3"

CSN 25 4156-1964 非穿过型环形螺纹校准规．惠氏螺纹．1 /S"__W 9"直径

Reference gauges for ring "NOT GO" gauges. Whitworth thread. Diameter W 1/8" - W 3"

CSN 25 4150-1964 穿过型规环形限制螺纹．螺纹 Whit-orth W 1/8"到W 3"直径

Ring limit thread "GO" gauges. Whitwort thread. Diameter W 1/8" - W 3"

CSN 25 4152-1964 穿过型规新型环形螺纹校准量规的测量部件．螺纹 Whit-orth W 1/8"到W 3"直径

Measuring parts of reference gauges for new ring thread "GO" gauges. Whitworth thread. Diameter W 1/8" - W 3"

CSN 25 4151-1964 穿过型新环形螺纹校准量规．惠氏螺纹 W 1/8" ~W3"直径

Reference gauges for new ring thread "GO" gauges. Whitworth thread. Diameter W 1/8" - W 3"

CSN 25 4154-1964 穿过型环螺纹校准量规的测量部件．惠氏螺纹 W 1/8"到W 3"直径

Measuring parts of reference gauges on wearing for ring thread "GO" gauges. Whitworth thread. Diameter W 1/8" - W 3"

CSN 25 4143-1964 非穿过型规圆柱形螺纹．惠氏螺纹 W 1 3/8"— 3"直径

Cylindrical thread "NOT GO" gauges. Whitworth thread. Diameter W 1 3/8" - W 3"

CSN 25 4142-1964 穿过型限圆柱形螺纹规的测量部件 惠氏螺纹 W 1/8'-W 3*直径

Measuring parts of "GO" limit of cylindrical thread gauges. Whitworth thread. Diameter W 1/8" - W 3"

CSN 25 4155-1964 非穿过型规限制环形螺纹．惠氏螺纹 W 1/8"- W3"直径

Limit ring thread "NOT GO" gauges. Whitworth thread. Diameter W 1/8" - W 3"

BS 1580 Pts.1 and 2:1962 统一螺纹规范.直径为1/4英寸及更大

This British Standard specifies particulars for single-start, clearance-fit threads in inch units having the ISO besic profile given inISO recommendation R.68, and Part 1 comtains the diameter/pitch combinations for 1/4 inch diameter and above given in (draft) ISO recommendation 362. This part of the standard is devoted to general particulars relating to these screw threads,and in particular it includes nominal sizes and limits of size for standard threads fo the following series: A coarse thread series (UNC) from 1/4 to 4 inches diameter. diameter; A fine thread series (UNF) from 1/4 to 3/2 inches diameter. An extra fine thread series (UNEF) from 1/4 in to 27/16 inches diameter. A 4-threads series (4 UN) from 21/8 to 6 inches diameter. A 6-threads series (6 UN) from 23/16 in to 6 inches diameter. A 8-threads series (8 UN) from 17/16 in to 6 inches diameter. A 12-threads series (12 UN) from 5/8 in to 6 inches diameter. A 16-threads series (16 UN) from 7/16 in to 6 inches diameter. A 20-threads series (20 UN) from 5/16 in to 3 inches diameter. A 28-threads series (28 UN) from 5/16 in to 3/2 inches diameter. A 32-threads series (32 UN) from 7/16 in to 1 inches diameter.

Specification for Unified screw threads - Diameters 1/4 in and larger

CSN 25 4621-1960 惠氏螺纹及导管螺纹的螺距规

Screw gauges. Screw pitch gauges for whitworth thread and pipe thread

BS 84:1956 惠氏直螺纹规范

Form of thread defined. Tables: basic sizes, limits, tolerances for 'class' bolts, nuts; BS Whitworth range, $9B in to 6 in; BS Fine range, $9C in to 4$9C in (limits and tolerances up to 3 in only). Also a Selected Thread series more suitable than BS Pipe parallel series for extra fine pitch applications. Appendices: limits, tolerances for B.S.W. and B.S.F. truncated bolts and nuts; bases of tolerances and allowances, formulae; effects of pitch and angle errors, acceptability of error combination; form of Whitworth crests ; limits and tolerances for (non-preferred) 'close class' nuts.

Specification for parallel screw threads of Whitworth form

CNS 527-1955 韦氏螺纹样圈之量柱及损磨量柱（通过端，精配，中配及粗配）

Inspection Plug Gauge for Whitworth Thread Ring Gauge (Go End Limit for Fine, Medium and Coarse Fits)

CNS 528-1955 韦氏螺纹活动量规（检验通过及不通过端样圈，精配，中配及粗配）

Adjustable Plug Gauge for Whitworth Thread Ring Gauge (For Testing of Go and No Go Ring Gauge, Fine, Medium and Coarse Fits)

CNS 526-1955 韦氏螺纹样圈（通过端限界尺寸，精配，中配及粗配）

Ring Gauge for Whitworth Thread (Go End Limit for Fine, Medium and Coarse Fits)

CNS 525-1955 韦氏螺纹活动量规（通过端损磨检验用，精配，中配及粗配）

Adjustable Snap Gauge for Whitworth Thread (for Go End Limit and Wear Test Fine Medium and Coarse Fits)

CNS 524-1955 韦氏螺纹量柱（不通过端限界尺寸，精配，中配及粗配）

Plug Gauge for Whitworth Thread (No Go End Limit for Fine,Medium and Coarse Fits)

CNS 523-1955 韦氏螺纹量柱（通过端限界尺寸、精配、中配及粗配）

Plug Gauge for Whitworth Thread (Go End Limit for Fine, Medium and Coarse Fits)

CNS 522-1955 韦氏螺纹量规（制造公差及损磨限）

Snap Gauge for Whitworth Thread (Manufacturing Tolerance and Wear Limit)