BRX210 ‘Mechanical
Blueprint Reading’
Unit #7
Threads
After studying this unit, you will be
able to:



Describe several similarities and differences
between 600 thread forms
Recognize a thread designation on an industrial
print
Interpret the meaning of thread specifications
on an industrial print
Answers to Bearing Support Block Quiz
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0.4075/0.4065
0.001
¾ (or 0.750)
10-32 UNF
3/8
1.045/1.060
41/64
39/64
2X
8620 STEEL
0.240
0.252
± 0.005
2
0.015-0.020
NO
1/8, 11/32
1/8
UNF
TEMPER
Answers to Vacuum Pad Stud Quiz
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FULL
FRONT, RIGHT SIDE
1/8 X 45°
Class 1 (Loose) Fit, “A” – External Threads
Unified National Coarse thread series
1-1/8 inch
SCHEMATIC
G.A.P.
08-75-0010
10
8.0625
¾
CADMIUM PLATE
CONT. THREAD STOCK
± 1/16
5-3/4
1 (LOOSE)
NEW PART RELEASED
06-92-1400
3/4
Answers to Locking Bolt Quiz
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0.192/0.187
¾
0.015
WAS 3/16 DRILL
1/32
1.25
9/16
Unified National Fine
WAS 5-3/8 (Length of Part)
Ø ¾ STRESSPROOF STL.
0.475
2.970/2.955
0.562/0.558
9/16
¼
1:1, 1” = 1”, or FULL
0.510/0.505
0.005 T.I.R.
0.49
± 0.10
Answers to “T”-Stop Screw Body Quiz
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OB-17-0920
9/16
FRONT, RIGHT SIDE
DIMENSION
0.010 MAX
‘F’ DRILL (0.257)
YES
¾
13/16
Ø 9/16 C.D. 12L14
45-04-0140
1-1/16
2.1875
0.375
0.184
1/8
CADMIUM PLATE
3/8-16 UNC
1.135
1/16 X 45°