Drive Tool Sizes for Industrial Fasteners

Elgin Fastener Group industrial fasteners and headed fasteners feature various drive tool sizes and models.  Full engineering data on all drive tool sizes is below.

ScrewSize Phillips Bit Size Slotted Bit Size Torx Bit Size Socket Size Hex Key Size
0 0 .050
1 0 1/16
2 1 00 1/8 5/64
3 1 00-0 1/8 5/64
4 1 0-1 TX-10 3/16 3/32
6 2 1-2 TX-15 1/4 7/64
8 2 2-3 TX-20 1/4 9/64
10 3 3-4 TX-25 5/16 5/32
12 3 3-4 TX-27 5/16
1/4 3 4-5 TX-30 3/8 3/16
5/16 4 5-6 TX-40 1/2 1/4
3/8 4 6/16 5/16
7/16 5/8 3/8
1/2 4 3/4 3/8
5/8 15/16 1/2
3/4 1 1/8 5/8
7/8 1 5/16 3/4
1 1 1/2 3/4
11/8 1 11/16 7/8
11/4 1 7/8 7/8
11/2 2 1/4 1