3/4-16 UNF 3A 5/8-11 UNC 2A UNLESS OTHERWISE SPECIFIED: DIMENSIONS ARE IN INCHES CHECKED TOLERANCES: APPROVED

(1)

4.0

3.00

1.00 2X .250

.875

.663+-

.000

.005

.497+-

.000

.005

3/4-16 UNF 3A

5/8-11 UNC 2A

NOTES:

1) DEBURR ALL EDGES .015 MAX.

2) #3 CENTER DRILL OK.

125

PROJECTION CHECKED

APPROVED

DIMENSIONS ARE IN INCHES TOLERANCES: 1/X or .X 1/64 (.0156) .XX .010 .XXX .005 X 1 ALL SURFACES

INTERPRET PER ASME Y14.5-2009

MATERIAL FINISH -DRAWN DATE NAME TITLE: SIZE

A

DWG. NO. REV WEIGHT: .45 SCALE: 1.5:1

UNLESS OTHERWISE SPECIFIED:

A. BALOGH 1/30/2019 SHEET 1 OF 4

M210-2

-12L14 STEEL

THREADED

SHAFT

A

B

2

1

(2)

4.0 .875

.7500

_{.7406 (.745)}

.6234

_{.6113 (.618)}

3.00

1.00 STAGE 1 - TURNING

NOTES:

1) DEBURR ALL EDGES .015 MAX.

2) #3 CENTER DRILL OK.

A

B

2

1

125 PROJECTION CHECKED APPROVED

A

M210-2

-12L14 STEEL

THREADED

SHAFT

(3)

2X .250

.663+-

.000

.005

.497+-

.000

.005

2X .041 X 45°

2X .058 X 45°

STAGE 2 -

GROOVING & CHAMFERING

NOTES:

1) DEBURR ALL EDGES .015 MAX.

2) #3 CENTER DRILL OK.

A

B

2

1

A

M210-2

-12L14 STEEL

THREADED

SHAFT

(4)

3/4-16 UNF 3A

5/8-11 UNC 2A

NOTES:

1) DEBURR ALL EDGES .015 MAX.

2) #3 CENTER DRILL OK.

STAGE 3 - THREADING

THREAD DATA

THREAD SPEC

3/4-16 UNF 3A

5/8-11 UNC 2A

MAJOR DIA.

.7406 - .7500

.6113 - .6234

PITCH DIA.

.7056 - .7094

.5589 - .5644

MINOR DIA.

( .6755)

( .5152)

WIRE SIZE

.040

.055

MEASUREMENT

OVER WIRES

.7715 - .7753

.6452 - .6507

A

M210-2

-12L14 STEEL

THREADED

SHAFT

A

B

2

1

(5)

THREADED SHAFT

INSPECTION REPORT

Linear and Diameter Dimensions

1)

4.0 +/- 1/64 (.0156)

2)

3.00 +/- .010

3)

1.00 +/- .010

4)

⌀

.875 +/- .005

5)

⌀

.7406 –

⌀

.7500

6)

⌀

.6113 –

⌀

.6234

Thread Relief Grooves and Entry/Exit Chamfers

For 3/4-16 UNF 3A threads:

1)

⌀

.663 +.000/-.005

2)

Width: .250 +/- .005

3)

Front Chamfer: .041 X 45°

4)

Back Chamfer: .041 X 45°

For 5/8-11 UNC 2A threads:

5)

⌀

.497 +.000/-.005

6)

Width: .250 +/- .005

7)

Front Chamfer: .058 X 45°

8)

Back Chamfer: .058 X 45°

Screw Threads

For 3/4-16 UNF 3A threads:

1)

Pitch Diameter:

⌀

.7056 –

⌀

.7094

2)

Size, form and pitch verification: Go/No Go Gages

A

For 5/8-11 UNC 2A threads:

3)

Pitch Diameter:

⌀

.5589 –

⌀

.5644

4)

Size, form and pitch verification: Go/No Go Gages

A

Overall appearance (clean, deburred, free of chips)

A

Points Earned

(6)

THREADED SHAFT

STAGE 1 - TURNING

PROJECT PLANNING WORK SHEET

OPERATION

TOOLS

CS/RPM

1) Cut

⌀

1.0” stock to 4 1/16”

length

Bandsaw

Combination Square

195 SFM

2) Install 3-jaw chuck in

lathe; mount part in chuck

with 1” stick-out

3-Jaw Chuck

6” Rule

3) Set tool heights to

centerline of lathe

LH Turning/Facing Tool

RH Turning Tool

4) Face side #1 to clean

LH Turning/Facing Tool

4 X

=

RPM

.007 IPR Rough

.003 IPR Finish

5) Center drill side #1

Drill Chuck

#3 Center Drill

600-1000 RPM

6) Flip part around with

1 1/2” stick-out and face

side #2 to clean

LH Turning/Facing Tool

7) Remove part and

measure; face to 4” length

Dial Calipers

Travel Indicator

8) Center drill side #2

Drill Chuck

#3 Center Drill

600-1000 RPM

9) Turn part to

⌀

.875” and

approx. 1 1/4” length

RH Turning Tool

Micrometer

4 X

=

RPM

.007 IPR Rough

.003 IPR Finish

Note: Use

coolant for all

machining

operations

(7)

10)

Mount dead center in

3-jaw chuck; set compound

rest to 30° from parallel with

spindle axis; true dead

center

Dead Center

RH Turning Tool

4 X

= RPM

Hand Feed

11)

Install lathe dog on

⌀

.875” and mount part

between centers

Lathe Dog

Dead Center

Live Center

12)

Turn part to

⌀

.745” and

3.00” length

RH Turning Tool

Travel Indicator

Micrometer

Depth Micrometer

4 X

= RPM

.007 IPR Rough

.003 IPR Finish

13)

Turn part to

⌀

.618” and

1.00” length

4 X

= RPM

.007 IPR Rough

(8)

THREADED SHAFT

STAGE 2 – GROOVING AND CHAMFERING

PROJECT PLANNING WORK SHEET

OPERATION

TOOLS

CS/RPM

1) Set tool heights to

centerline of lathe

Grooving Tool

Chamfer Tool

2) Square tools to part

3) Touch grooving tool off

3.00” shoulder; cut

⌀

.663” X

.25” relief groove

Grooving Tool

Travel Indicator

Blade Micrometer

4 X

=

RPM

Hand Feed

4) Touch off 1.00” shoulder;

cut

⌀

.497” X .25” relief

groove

4 X

= RPM

Hand Feed

5) Cut .058” X 45° chamfers;

use .002” shim to offset

chamfer tool from relief

groove

Chamfer Tool

Travel Indicator

.002” Shim

4 X

=

RPM

Hand Feed

6) Cut .041” X 45° chamfers

4 X

=

RPM

Hand Feed

Note: Use

coolant for all

machining

operations

(9)

THREADED SHAFT

STAGE 3 - THREADING

PROJECT PLANNING WORK SHEET

OPERATION

TOOLS

CS/RPM

1)

Set compound rest at 29°

from perpendicular with

spindle axis; set compound

dial to zero

2)

Set threading tool height

to centerline of lathe

Threading Tool

3)

Align threading tool to

part

Center Gage

4)

Set gearbox for 16 TPI

threads

5)

Blue part; touch off

threading tool with

cross-slide and set dial to zero;

move compound dial in

.002”; engage half-nut to

take .002” test cut; check

pitch

Layout Dye

Screw Pitch Gage

4 X

= RPM

6)

Take progressive cuts

with compound dial

adjustments according to

operations manual

7)

When approx. .010” from

max pitch diameter,

measure P.D.

Pitch Micrometer

0-1” Micrometer

Thread Measuring Wires

Note: Use

cutting oil for

all threading

operations

(10)

8)

Take finish cuts of .001”

increments with cross-slide

dial; measure frequently

9)

Inspect threads with

Go-No Go gages

10)

Repeat the preceding

steps for the 5/8-11 threads

4 X

= RPM

11)

Clean and deburr

File

(11)

UNIFIED SCREW THREADS

1741

9⁄16 –20 UN 2A 0.0013 0. 5612 0. 5531 — 0.5287 0.5245 0.5017 2B 0.508 0.520 0.5300 0.5355 0.5625 3A 0.0000 0. 5625 0. 5544 — 0. 5300 0.5268 0.503 0 3B 0.5080 0.5162 0.5300 0.5341 0.5625 9⁄16 –24 UNEF 2A 0.0012 0. 5613 0. 5541 — 0.5342 0.5303 0.5117 2B 0.517 0.527 0.5354 0.5405 0.5625 3A 0.0000 0. 5625 0. 5553 — 0. 5354 0.5325 0.512 9 3B 0.5170 0.5244 0.5354 0.5392 0.5625 9⁄16 –27 UNS 2A 0.0011 0. 5614 0. 5547 — 0.5373 0.5336 0.5173 2B 0.522 0.531 0.5384 0.5432 0.5625 9⁄16 –28 UN 2A 0.0011 0. 5614 0. 5549 — 0.5382 0.5345 0.5188 2B 0.524 0.532 0.5393 0.5441 0.5625 3A 0.0000 0. 5625 0. 5560 — 0. 5393 0.5365 0.519 9 3B 0.5240 0.5301 0.5393 0.5429 0.5625 9⁄16 –32 UN 2A 0.0010 0. 5615 0. 5555 — 0.5412 0.5377 0.5243 2B 0.529 0.536 0.5422 0.5467 0.5625 3A 0.0000 0. 5625 0. 5565 — 0. 5422 0.5396 0.525 3 3B 0.5290 0.5344 0.5422 0.5456 0.5625 5⁄–11 UNC8 1A 0.0016 0. 6234 0. 6052 — 0.5644 0.5561 0.5152 1B 0.527 0.546 0.5660 0.5767 0.6250 2A 0.0016 0.6234 0.6113 0.6052 0.564 4 0.5589 0.5152 2B 0.527 0.546 0.5660 0.5732 0.6250 3A 0.0000 0. 6250 0. 6129 — 0. 5660 0.5619 0.516 8 3B 0.5270 0.5391 0.5660 0.5714 0.6250 5⁄–12 UN8 2A 0.0016 0. 6234 0. 6120 — 0.5693 0.5639 0.5242 2B 0.535 0.553 0.5709 0.5780 0.6250 3A 0.0000 0. 6250 0. 6136 — 0. 5709 0.5668 0.525 8 3B 0.5350 0.5463 0.5709 0.5762 0.6250 5⁄–14 UNS8 2A 0.0015 0. 6235 0. 6132 — 0.5771 0.5720 0.5385 2B 0.548 0.564 0.5786 0.5852 0.6250 5⁄–16 UN8 2A 0.0014 0. 6236 0. 6142 — 0.5830 0.5782 0.5491 2B 0.557 0.571 0.5844 0.5906 0.6250 3A 0.0000 0. 6250 0. 6156 — 0. 5844 0.5808 0.550 5 3B 0.5570 0.5662 0.5844 0.5890 0.6250 5⁄–18 UNF8 1A 0.0014 0. 6236 0. 6105 — 0.5875 0.5805 0.5575 1B 0.565 0.578 0.5889 0.5980 0.6250 2A 0.0014 0. 6236 0. 6149 — 0.5875 0.5828 0.5575 2B 0.565 0.578 0.5889 0.5949 0.6250 3A 0.0000 0. 6250 0. 6163 — 0. 5889 0.5854 0.558 9 3B 0.5650 0.5730 0.5889 0.5934 0.6250 5⁄–20 UN8 2A 0.0013 0. 6237 0. 6156 — 0.5912 0.5869 0.5642 2B 0.571 0.582 0.5925 0.5981 0.6250 3A 0.0000 0. 6250 0. 6169 — 0. 5925 0.5893 0.565 5 3B 0.5710 0.5787 0.5925 0.5967 0.6250 5⁄–24 UNE8 F 2A 0.0012 0. 6238 0. 6166 — 0.5967 0.5927 0.5742 2B 0.580 0.590 0.5979 0.6031 0.6250 3A 0.0000 0. 6250 0. 6178 — 0. 5979 0.5949 0.575 4 3B 0.5800 0.5869 0.5979 0.6018 0.6250 5⁄–27 UNS8 2A 0.0011 0. 6239 0. 6172 — 0.5998 0.5960 0.5798 2B 0.585 0.594 0.6009 0.6059 0.6250 5⁄–28 UN8 2A 0.0011 0. 6239 0. 6174 — 0.6007 0.5969 0.5813 2B 0.586 0.595 0.6018 0.6067 0.6250 3A 0.0000 0. 6250 0. 6185 — 0. 6018 0.5990 0.582 4 3B 0.5860 0.5926 0.6018 0.6055 0.6250

Table

3. (Continued)

S

tandard

S

eries

and

S

elected

C

ombin

ations

—

Unified

S

crew

T

hre

ads

Nominal Size,

Threads per Inch,

and Series _Designation

a External b Internal b Class Allo w-an ce Major Diameter Pitch Diameter UNR Minor Dia., c Max (Ref.) Class Minor Diameter Pitch Diameter Ma jor Diameter Max d Min M in e Max d Min M in Max M in Max M in

M

achinery's Handbook 27th Edition

(12)

UNIFIED SCREW THREADS

1742

5⁄–32 UN8 2A 0.0011 0. 6239 0. 6179 — 0.6036 0.6000 0.5867 2B 0.591 0.599 0.6047 0.6093 0.6250 3A 0.0000 0. 6250 0. 6190 — 0. 6047 0.6020 0.587 8 3B 0.5910 0.5969 0.6047 0.6082 0.6250 11⁄16 –12 UN 2A 0.0016 0. 6859 0. 6745 — 0.6318 0.6264 0.5867 2B 0.597 0.615 0.6334 0.6405 0.6875 3A 0.0000 0. 6875 0. 6761 — 0. 6334 0.6293 0.588 3 3B 0.5970 0.6085 0.6334 0.6387 0.6875 11⁄16 –16 UN 2A 0.0014 0. 6861 0. 6767 — 0.6455 0.6407 0.6116 2B 0.620 0.634 0.6469 0.6531 0.6875 3A 0.0000 0. 6875 0. 6781 — 0. 6469 0.6433 0.613 0 3B 0.6200 0.6284 0.6469 0.6515 0.6875 11⁄16 –20 UN 2A 0.0013 0. 6862 0. 6781 — 0.6537 0.6494 0.6267 2B 0.633 0.645 0.6550 0.6606 0.6875 3A 0.0000 0. 6875 0. 6794 — 0. 6550 0.6518 0.628 0 3B 0.6330 0.6412 0.6550 0.6592 0.6875 11⁄16 –24 UN EF 2A 0.0012 0. 6863 0. 6791 — 0.6592 0.6552 0.6367 2B 0.642 0.652 0.6604 0.6656 0.6875 3A 0.0000 0. 6875 0. 6803 — 0. 6604 0.6574 0.637 9 3B 0.6420 0.6494 0.6604 0.6643 0.6875 11⁄16 –28 UN 2A 0.0011 0. 6864 0. 6799 — 0.6632 0.6594 0.6438 2B 0.649 0.657 0.6643 0.6692 0.6875 3A 0.0000 0. 6875 0. 6810 — 0. 6643 0.6615 0.644 9 3B 0.6490 0.6551 0.6643 0.6680 0.6875 11⁄16 –32 UN 2A 0.0011 0. 6864 0. 6804 — 0.6661 0.6625 0.6492 2B 0.654 0.661 0.6672 0.6718 0.6875 3A 0.0000 0. 6875 0. 6815 — 0. 6672 0.6645 0.650 3 3B 0.6540 0.6594 0.6672 0.6707 0.6875 3⁄–10 UNC4 1A 0.0018 0. 7482 0. 7288 — 0.6832 0.6744 0.6291 1B 0.642 0.663 0.6850 0.6965 0.7500 2A 0.0018 0.7482 0.7353 0.7288 0.683 2 0.6773 0.6291 2B 0.642 0.663 0.6850 0.6927 0.7500 3A 0.0000 0. 7500 0. 7371 — 0. 6850 0.6806 0.630 9 3B 0.6420 0.6545 0.6850 0.6907 0.7500 3⁄–12 UN4 2A 0.0017 0. 7483 0. 7369 — 0.6942 0.6887 0.6491 2B 0.660 0.678 0.6959 0.7031 0.7500 3A 0.0000 0. 7500 0. 7386 — 0. 6959 0.6918 0.650 8 3B 0.6600 0.6707 0.6959 0.7013 0.7500 3⁄–14 UNS4 2A 0.0015 0. 7485 0. 7382 — 0.7021 0.6970 0.6635 2B 0.673 0.688 0.7036 0.7103 0.7500 3⁄–16 UNF4 1A 0.0015 0. 7485 0. 7343 — 0.7079 0.7004 0.6740 1B 0.682 0.696 0.7094 0.7192 0.7500 2A 0.0015 0. 7485 0. 7391 — 0.7079 0.7029 0.6740 2B 0.682 0.696 0.7094 0.7159 0.7500 3A 0.0000 0. 7500 0. 7406 — 0. 7094 0.7056 0.675 5 3B 0.6820 0.6908 0.7094 0.7143 0.7500 3⁄–18 UNS4 2A 0.0014 0. 7486 0. 7399 — 0.7125 0.7079 0.6825 2B 0.690 0.703 0.7139 0.7199 0.7500 3⁄–20 UNE4 F 2A 0.0013 0. 7487 0. 7406 — 0.7162 0.7118 0.6892 2B 0.696 0.707 0.7175 0.7232 0.7500 3A 0.0000 0. 7500 0. 7419 — 0. 7175 0.7142 0.690 5 3B 0.6960 0.7037 0.7175 0.7218 0.7500 3⁄–24 UNS4 2A 0.0012 0. 7488 0. 7416 — 0.7217 0.7176 0.6992 2B 0.705 0.715 0.7229 0.7282 0.7500 3⁄–24 UNS4 2A 0.0012 0. 7488 0. 7421 — 0.7247 0.7208 0.7047 2B 0.710 0.719 0.7259 0.7310 0.7500

Table

3. (Continued)

S

tandard

S

eries

and

S

elected

C

ombin

ations

—

Unified

S

crew

T

hre

ads

Nominal Size,

Threads per Inch,

and Series _Designation

a External b Internal b Class Allo w-an ce Major Diameter Pitch Diameter UNR Minor Dia., c Max (Ref.) Class Minor Diameter Pitch Diameter Ma jor Diameter Max d Min M in e Max d Min M in Max M in Max M in

M

achinery's Handbook 27th Edition

(13)

Three wire method of

checking

pitch diameter of

screw threads

PITCH WIRE SIZE ADD CONSTANT

MM INCH MM INCH MM 0.5 .018 .6138 .02417 .9386 0.6 .018 .4623 .01820 .8520 0.7 .018 .3107 .01223 .7654 0.75 .018 .2349 .00925 7221 0.8 .024 .6164 .02427 1.1360 1.0 .024 .3133 .01233 .9628 1.25 .029 .3154 .01242 1.1273 1.5 .040 .7747 .03050 1.7490 1.75 .040 .3958 .01558 1.5324 2.0 .045 .3979 .01567 1.6969 2.5 .055 .4021 .01583 2.0259 3.0 .063 .2540 .01000 2.2025 3.5 .081 .8678 .03416 3.1411 4.0 .092 .9482 .03733 3.5463 4.5 .108 1.4096 .05550 4.3325 5.0 .108 .6519 .02566 3.8995 5.5 .120 .8085 .03183 4.3808 6.0 .127 .5841 .02300 4.1812 48 .018 .03596 11 1/2 .055 .09869 44 .018 .03432 11 .055 .08627 40 .018 .03235 10 .055 .07840 36 .018 .02994 9 .063 .09277 32 .024 .04494 8 .072 .10775 28 .024 .04107 7 1/2 .081 27 .024 .03993 7 .081 .11928 24 .029 .05092 6 .092 .13166 20 .029 .04370 5 1/2 .108 .16654 18 .032 .04789 5 .120 16 .040 .06587 4 1/2 .127 14 .040 .05814 4 .143 13 .045 .06838 3 1/2 .185 12 .055 .09283 3 .185

THREADS WIRE THREADS WIRE

PER INCH SIZE CONST PER IN SIZE CONST

THREAD CHART

FOR ALL U.S. 60° THREADS

M = Measurement over wires

E = Pitch diameter of thread

D = Basic major or outside diameter

W = Wire Diameter

M = E + Const.

E

=

M. -

Const.

Const. = 3W

-

.

86603P (found in chart)

The maximum and minimum pitch diameter

(E)for each class of thread can be found in

machinerys hand book.

Select the proper wire size for either the number or threads per inch (US) or thread pitch (metric).

Measured pitch dia (E) equals measurement over wires (M) minus decimal in “CONST” column.

NOTE: Basic P.D. equals basic major diameter plus decimal in “ADD” column minus decimal in “CONST” column.

.02243 .01956 .01611 .01190 .02464 .01787 .01587 .02385 .01122 .01180 .02528 .01175 .01842 .03870 ADD .03321 .02722 .01345 .02061 .02656 .04093 .02649 .02341 .04845 .05689 .04421 .05011 .12199 .04982 ADD INCH .03695 .03354 .03013 .02843 .04472 .03790 .04438 .06886 .06033 .06681 .07976 .08671 .12367 .13962 .17057 .15352 .17247 .17643