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Glass Bead Conversion
Table
Please note that this table is for reference only. Please consult your glass bead manufacturer for exact specifications. Bold print indicates the most commonly used glass bead sizes. Mil. Spec. No. 8 is the most commonly used bead size.
| U.
S. STANDARD SCREEN SIZE |
MIL.
SPEC. (G-9954A) |
MIL.
SPEC. (S-13165B) |
COMMON BRANDS |
SAE (J-1173) |
BEAD
SIZE RANGE (DIA., INCHES) |
||||
FLEX-O-LITE (BLAST-O-LITE) |
POTTERS (BALLOTINI) |
CATAPHOTE (MICROBEAD) |
ZERO | ||||||
12-14 |
No. 1 |
BT 1 |
1 |
801-201 |
.0661-.0555 |
||||
14-20 |
No. 2 |
BT 2 |
2 |
801-202 |
.0555-.0331 |
||||
20-30 |
No. 3 |
331 |
BT 3 |
3 or A |
MS-XGX |
801-203 |
GB-70 |
.0331-.0234 |
|
20-80 |
AA |
.0331-.0070 |
|||||||
25-35 |
|
MS-XPX |
.0283-.0197 |
||||||
25-45 |
AAA |
MS-XP |
.0283-.0171 |
||||||
30-40 |
No. 4 |
232 |
BT 4 |
4 or B |
801-204 |
GB-50 |
.0234-.0165 |
||
35-45 |
197 |
.0197-.0171 |
|||||||
35-60 |
MS-P |
.0197-.0098 |
|||||||
40-50 |
No. 5 |
165 |
BT 5 |
5 |
801-205 |
GB-35 |
.0165-.0117 |
||
40-60 |
BOL 21 |
C |
.0165-.0098 |
||||||
40-70 |
MS-XHX |
.0165-.0083 |
|||||||
45-60 |
138 |
.0171-.0098 |
|||||||
50-70 |
No. 6 |
117 |
BT 6 |
6 or D |
801-206 |
GB-25 |
.0117-.0083 |
||
50-80 |
BOL 23 |
AB |
MS-XH |
.0117-.0070 |
|||||
60-80 |
No. 7 |
98 |
BT 7 |
7 or E |
801-207 |
GB-20 |
.0098-.0070 |
||
60-100 |
BOL 24 |
MS-H |
.0098-.0059 |
||||||
60-120 |
AC |
.0098-.0049 |
|||||||
70-100 |
No. 8 |
83 |
BT 8 |
8 or F |
801-208 |
GB-18 |
.0083-.0059 |
||
70-140 |
BOL 25 |
AD |
MS-MH |
.0083-.0041 |
|||||
80-120 |
No. 9 |
70 |
BT 9 |
9 or G |
801-209 |
GB-15 |
.0070-.0049 |
||
100-140 |
H |
.0059-.0041 |
|||||||
100-170 |
No. 10 |
BT 10 |
10 or AE |
801-210 |
.0059-.0035 |
||||
100-200 |
BOL 26 |
MS-M |
.0059-.0029 |
||||||
120-170 |
AG |
.0049-.0035 |
|||||||
120-200 |
No. 11 |
BT 11 |
11 |
801-211 |
.0049-.0029 |
||||
140-200 |
J |
.0041-.0029 |
|||||||
140-230 |
No. 12 |
BT 12 |
12 |
801-212 |
.0041-.0025 |
||||
140-270 |
BOL 27 |
MS-ML |
.0041-.0021 |
||||||
170-230 |
.0035-.0025 |
||||||||
170-325 |
No. 13 |
BT 13 |
13 or AH |
MS-L |
801-213 |
.0035-.0017 |
|||
170 and Finer |
AL |
.0035 and Finer |
|||||||
200-270 |
N |
.0029-.0021 |
|||||||
200-325 |
BOL 29 |
.0029-.0017 |
|||||||
230-325 |
24 |
O |
.0025-.0017 |
||||||
270-400 |
P |
.0021-.0015 |
|||||||
270 and Finer |
AI |
MS-XL |
.0021 and Finer |
||||||
325 and Finer |
BOL 30 |
AQ |
MS-XLX |
801-214 |
.0017 and Finer |
||||
400 and Finer |
AS |
.0015 and Finer |
|||||||