8 9
 
1
 
 

 
Points
Conversion
INCH
METRIC
Fraction
Decimal
mm
1/128
0.007813
0.198438
1/64
0.015625
0.396875
1/32
0.031250
0.793750
3/64
0.046875
1.190625
1/16
0.062500
1.587500
5/64
0.078125
1.984375
3/32
0.093750
2.381250
7/64
0.109375
2.778125
1/8
0.125000
3.175000
9/64
0.140625
3.571875
5/32
0.156250
3.968750
11/64
0.171875
4.365625
3/16
0.187500
4.762500
13/64
0.203125
5.159375
7/32
0.218750
5.556250
15/64
0.234375
5.953125
1/4
0.250000
6.350000
17/64
0.265625
6.746875
9/32
0.281250
7.143750
19/64
0.296875
7.540625
5/16
0.312500
7.937500
21/64
0.328125
8.334375
11/32
0.343750
8.731250
23/64
0.359375
9.128125
3/8
0.375000
9.525000
25/64
0.390625
9.921875
7/16
0.437500
11.112500
29/64
0.453125
11.509375
15/32
0.468750
11.906250
INCH
METRIC
Fraction
Decimal
mm
31 / 64
0.484375
12.303125
1 / 2
0.500000
12.700000
33 / 64
0.515625
13.096875
17 / 32
0.531250
13.493750
35 / 64
0.546875
13.890625
9 / 16
0.562500
14.287500
37 / 64
0.578125
14.684375
19 / 32
0.593750
15.081250
39 / 64
0.609375
15.478125
5 / 8
0.625000
15.875000
41 / 64
0.640625
16.271875
21 / 32
0.656250
16.668750
43 / 64
0.671875
17.065625
3 / 4
0.750000
19.050000
49 / 64
0.765625
19.446875
25 / 32
0.781250
19.83750
51 / 64
0.796875
20.240625
13 / 16
0.815200
20.637500
53 / 64
0.828125
21.034375
7 / 8
0.875000
22.225000
57 / 64
0.890625
22.621875
29 / 32
0.906250
23.018750
59 / 64
0.921875
23.415625
15 / 16
0.937500
23.812500
61 / 64
0.953125
24.209375
31 / 32
0.968750
24.606250
63 / 64 
0.984375
25.003125
1
1.000000
25.40000
Heads
PROTECTIVE FINISHES
FINISH
FINISH COLOR
CORROSION
RESISTANCE
SUGGESTED
MATERIAL
ROHS
COMP.
Black Zinc
Black
Very Good
All
No
Brass
Brass
Fair
Steel
Yes
Bronze
Varied
Fair
Steel
Yes
Cadmium
Silver Grey
Very Good
Steel
No
Copper
Copper
Fair
Steel
Yes
Iridite
Olive, Green, Black,
Red, Blue, Bronze
Good
Ferrous
Metals
Yes
Nickel
Silver
Very Good
Steel
Yes
Oxide (Black)
Lustre Black
Fair
All
Yes
Painted
Any
Good
All
No
Parkerized
Dull Gray, Black
Fair
Steel
Yes
Phos & Oil
Black
Very Good
Steel
Yes
Stalgard
Dull Silver
Excellent
All
Yes
Tinning (electro)
Silver, Gray
Good
Steel
Yes
Trivalent Zinc
Varied
Good
Steel
Yes
Good
Steel
No
Nuts
NOMINAL SIZE & THREAD/INCH& SERIES DESIGNATION
SIZE
BASIC
THREAD
0-80
0.0600
UNF
1-64
0.0730
UNC
1-72
0.0730
UNF
2-56
0.0860
UNC
2-64
0.0860
UNF
3-48
0.0990
UNC
3-56
0.0990
UNF
4-40
0.1120
UNC
4-48
0.1120
UNF
5-40
0.1250
UNC
5-44
0.1250
UNF
6-32
0.1380
UNC
6-40
0.1380
UNF
8-32
0.1640
UNC
8-36
0.1640
UNF
10-24
0.1900
UNC
10-32
0.1900
UNF
12-24
0.2160
UNC
12-28
0.2160
UNF
1/4-20
0.2500
UNC
1/4-28
0.2500
UNF
5/16-18
0.3125
UNC
5/16-24
0.3125
UNF
3/8-16
0.3750
UNC
3/8-24
0.3750
UNF
7/16-14
0.4375
UNC
7/16-20
0.4375
UNF
1/2-13
0.5000
UNC
1/2-20
0.5000
UNF
9/16-12
0.5625
UNC
9/16-18
0.5625
UNF
5/8-11
0.6250
UNC
5/8-18
0.6250
UNF
3/4-10
0.7500
UNC
3/4-16
0.7500
UNF
7/8-9
0.8750
UNC
7/8-14
0.8750
UNF
1-8
1.0000
UNC
1-12
1.0000
UNF
1-14
1.0000
UNS
1 1/8-7
1.1250
UNC
1 1/8-8
1.1250
8 Series
1 1/8-12
1.1250
UNF
1 1/4-7
1.2500
UNC
1 1/4-8
1.2500
8 Series
1 1/4-12
1.2500
UNF
1 3/8-6
1.3750
UNC
1 3/8-8
1.3750
8 Series
1 3/8-12
1.3750
UNF
1 1/2-6
1.5000
UNC
1 1/2-8
1.5000
8 Series
1 1/2-12
1.5000
UNF
HOW TO SPECIFY BOLTS, SOCKETS & SCREWS
Fasteners
Look to Hommel Revcar for all of your standard, metric and specialty hardware and fastener needs.
Bolts:  
 Hommel Revcar carries all types
 of bolts  in all finishes,head
 styles,grades, thread pitches,
 lengths and diameters.

 

 
Screws:  
 Hommel Revcar has an extensive  line of all
types of screws in thousands of different 
lengths, diameters, head styles and
finishes as well. 
Nuts:  
Acorn, Castle, Hex, High,
 Nylon Insert,Rod Coupling,  
Square,Wing...from standard
to specialty  Hommel Revcar 
wants to be your nut supplier.
 
Washers:  
Bevel, Conical, Crescent, Fender, Flat 
USS/SAE, Hi Tensile, Lock, Structural 
are just a few of the types of washers 
 Hommel Revcar carries.
Rivets:  
 Hommel Revcar has your rivet 
 needs covered with a broad  
offering of standard and   
specialty rivets, rivet nuts and  
rivet studs, including special 
 application rivets
 
Pins:  
From cotter pins, clevis pins, spring/roller
pins, dowel pins, taper pins to e-rings
 Hommel Revcar has the assembly 
 
 
10 11 12
 
 
  contact us