S9U Undercutting Tool

This tool is required for undercutting the holes to accommodate the S-9 Undercut Anchor. Designed to be attached to concrete coring equipment and apparatus with water flushing capabilities. Specifications available on request. Special length undercut tools can be manufactured upon request.

Typical Undercut Tools in Stock

Bar
Diameter
Standard
Embedment
Range
Part
Number
1/4” – 20 UNC
(6.4 mm)
Up to 5”
(127 mm)
S9U-02H
3/8” – 16 NC
(9.5 mm)
Up to 6-1/2”
(165 mm)
S9U-04H
1/2” – 13 UNC
(13 mm)
Up to 8”
(203 mm)
S9U-04H
5/8” – 11 UNC
(16 mm)
Up to 10”
(254 mm)
S9U-06H
3/4” – 10 UNC
(19 mm)
Up to 12-1/4”
(311 mm)
S9U-06H
1” – 8 UNC
(25 mm)
Up to 15-1/2”
(394 mm)
S9U-08H
1-1/4” – 7 UNC
(32 mm)
Up to 21”
(533 mm)
S9U-10H
1-1/2” – 6 NC
(38 mm)
Up to 27-1/2”
(699 mm)
S9U-12H

 

Undercut Anchor Setting Chart

Anchor
Size
Minimum
Embed.
Offset Coupling
Dia Length
3/8”
(9.5 mm)
4-1/8”
(105 mm)
3/8”
(10 mm)
3/4”
(19 mm)
2-1/4”
(57 mm)
1/2”
(13 mm)
6”
(152 mm)
3/8”
(10 mm)
3/4”
(19 mm)
2-1/4”
(57 mm)
5/8”
(16 mm)
7-1/2”
(191 mm)
3/8”
(10 mm)
1”
(25 mm)
3”
(76 mm)
3/4”
(19 mm)
9-1/4”
(235 mm)
1/2”
(13 mm)
1-1/16”
(27 mm)
3”
(76 mm)
1”
(25 mm)
12-1/2”
(318 mm)
5/8”
(16 mm)
1-1/2”
(38 mm)
4-1/4”
(108 mm)
1-1/4”
(32 mm)
16”
(406 mm)
3/4”
(19 mm)
1-7/8”
(48 mm)
5-5/8”
(143 mm)
1-1/2”
(38 mm)
21-1/2”
(546 mm)
1”
(25 mm)
2-1/4”
(57 mm)
8-5/8”
(219 mm)

S9T – A-193 B7 Bar – Torque Tension Chart

All data based on greased (MolyCoat Gn)threads and surfaces.

 


 

Installation

Flush Mount Anchor Installation

Williams also offers a flush mount S-9 Undercut Bearing Anchor that carries all the advantages of the standard S-9 , but adds the ease of installing in special conditions such as heavy machinery or large weldments. After hole is undercut, proceed as shown below in steps 1-5.

S-9 Flush Mount Undercut Concrete Anchor Data

Anchor
Size
Minimum
Embed.
Offset Coupling
Dia Length
3/8”
(9.5 mm)
4-1/8”
(105 mm)
3/8”
(10 mm)
3/4”
(19 mm)
2-1/4”
(57 mm)
1/2”
(13 mm)
6”
(152 mm)
3/8”
(10 mm)
3/4”
(19 mm)
2-1/4”
(57 mm)
5/8”
(16 mm)
7-1/2”
(191 mm)
3/8”
(10 mm)
1”
(25 mm)
3”
(76 mm)
3/4”
(19 mm)
9-1/4”
(235 mm)
1/2”
(13 mm)
1-1/16”
(27 mm)
3”
(76 mm)
1”
(25 mm)
12-1/2”
(318 mm)
5/8”
(16 mm)
1-1/2”
(38 mm)
4-1/4”
(108 mm)
1-1/4”
(32 mm)
16”
(406 mm)
3/4”
(19 mm)
1-7/8”
(48 mm)
5-5/8”
(143 mm)
1-1/2”
(38 mm)
21-1/2”
(546 mm)
1”
(25 mm)
2-1/4”
(57 mm)
8-5/8”
(219 mm)

*For larger stainless diameters these dimensions may vary.

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