Self Tapping Screw Suggested Hole Sizes & Conversion Chart

S6-SCREWS, WOOD SCREWS & TAPPERS
STAINLESSFASTENERS
PRODUCTCATALOGUE 07
SUGGESTED HOLE SIZES FOR TYPES AB, B AND BP THREAD
FORMING TAPPING SCREWS AND TYPES BF AND BT THREAD
CUTTING TAPPING SCREWS
NOMINAL
SCREW
SIZE
HOLE DIAMETER
CLOSEST DRILL SIZE TO MEAN
HOLE DIAMETER
MAX MEAN MIN DRILL SIZE DRILL DIA.
0-48 0.049 0.046 0.043 56 0.0465
1-42 .063 .059 .055 53 .0595
2-32 .077 .072 .067 49 .073
3-28 .090 .084 .078 45 .082
4-24 .103 .096 .089 41 .096
5-20 .114 .107 .100 36 .1065
6-20 .124 .116 .108 32 .116
7-19 .138 .129 .120 30 .1285
8-18 .148 .138 .128 29 .136
10-16 .170 .159 .148 21 .159
12-14 .194 .182 .169 14 .182
1/4-14 .226 .211 .196 4 .209
5/16-12 .289 .270 .251 1 .272
3/8-12 .356 .333 .310 Q .332
7/16-10 .413 .386 .359 W .386
1/2-10 .480 .449 .418 29/64 .4531
84
2007
ABN 96 118 412 892
STAINLESS FASTENERS PRODUCT CATALOGUE
COPYRIGHT BY JAMES GLEN PTY LTD
PLEASE REFER TO BOOKLET AT BACK OF THE CATALOGUE FOR PRICE BREAKDOWN
THE BEST DESERVES THE BEST

SELF TAPPING SCREWS CONVERSION CHART
DESCRIPTION CODE DIN
PAN SLOT STS PSST 7971
CSK SLOT STS CSST 7972
PAN PHILLIPS STS PXST 7981
CSK PHILLIPS STS CXST 7982
RSD CSK SLOT RCSST 7973
RSD CSK PHILLIP RCXST 7983
SIZE
LENGTH
IMPERIAL METRIC IMPERIAL INCHES METRIC CM
4# GAUGE 2.9 1/4 7
6# GAUGE 3.5 3/8 9.5
8# GAUGE 4.2 1/2 13
10# GAUGE 4.8 5/8 16
12# GAUGE 5.5 3/4 19
14# GAUGE 6.3 7/8 22
1 25
1.1/4 32
1.1/2 38
1.3/4 45
2 50
2.1/4 57
2.1/2 63
2.3/4 69
3 75
3.1/2 88
4 100
S6-SCREWS, WOOD SCREWS & TAPPERS
PLEASE REFER TO BOOKLET AT BACK OF THE CATALOGUE FOR PRICE BREAKDOWN
THE BEST DESERVES THE BEST
STAINLESS FASTENERS PRODUCT CATALOGUE
COPYRIGHT BY JAMES GLEN PTY LTD
2007
ABN 96 118 412 892
85