Miniature Screws 

  1. Unified Miniature Screw Threads: The use of this UNM (metric) series is recommended for new products although the old standards are still available. You can check Newman Tools Inc. for a brief history and more information. Check JI Morris Inc. for dimensional information. (Reference ASME B1.10M-2004, Unified Miniature Screw Threads.)

  1. Unified and American Thread Series: 

 
Hex Head Screws    Vendor
Screw Size Material
O.D. Across Flats-A Head Height-H Lengths
 jimorris    
#0-80 Brass
.0566-.0600 .0937+/-.002 .038-.046 .094 to .500
#00-90 Brass
.0450-.0470 0.0781+/-.002 .038-.046 .094 to .500
Round Head Slotted Screws   
Screw Size Material
O.D. Diameter-A Head Height-H Lengths
#0-80 Brass
.0566-.0600 .104-.110 .045-.051 .094 to .500
#00-90 Brass
.0450-.0470 .083-.089 .039-.045 .094 to .500
#000-120 Brass
.0325-.0340 .058-.062 .027-.032 .094 to .250
Flat Head 82 Degree Slotted Screws   
Screw Size Material
O.D. Diameter-A
Head Height-H
Lengths
#0-80 Cres
.0566-.0600 .104-.112 0.035 REF .094 to .250
#00-90 Cres
.0450-.0470 .085-.093 0.028 REF .094 to .250
#000-120 Cres
.0325-.0340 .058-.064 0.016 REF .094 to .250
#0000-160
Cres
.0195-.0210
.037-.043
.011 REF
.062 to .156
Oval Fillister Head Slotted Screws   
Screw Size Material
O.D. Diameter-A
Head Height-O
Lengths
#0-80 Cres
.0566-.0600 .087-.095 .047-.055 .094 to .250
#00-90 Cres
.0450-.0470 .074-.082 .039-.047 .094 to .250
#000-120 Cres
.0325-.0340 .053-.059 .027-.035 .094 to .250
#0000-160
Cres
.0195-.0210
.032-.038
.015-.023
.062 to .156
Hex Nuts   
Screw Size Material
O.D. Across Flats-A
Head Height-H
#1-72 Cres
0.073 .1093+/-.002 .059-.069
#0-80 Cres
.0566-.0600 .0937+/-.002 .044-.052
#00-90 Cres
.0450-.0470 .0781+/-.002 .036-.044
#000-120 Brass
.0325-.0340 .0781+/-.002 .030-.036
#0000-160 Brass
0.021 0.0625 .022-.028
Flat Washers   
Screw Size Material
O.D. I.D Thk
#1 (.073) Brass/Cres
0.1560 .075" 0.019
#0 (.060) Brass/Cres
0.1250 .064" 0.019
#00 (.047) Brass/Cres
0.1094 .050" 0.015
#000(.034) Brass/Cres
0.0781 .037" 0.012
Lock Washers    small parts

similar

to NAS1640

Screw Size Material
O.D. I.D Thk
#1(.073) Cres
0.15 0.075 0.022 see note 1)
#0(.060) Cres
0.130 0.063 0.016 see note 2)
1) Appears to no longer be available, (taken from catalog 21, 2001). Consult the manufacturer.
2) DIN 127 3.3mm O.D. x 1.6mm I.D. x .4mm thk.