Redi-Torque Installation Guide
Omni-directional slip base
MODEL 280U-SQ1
Combination anchor with lower slip plate | Receives square sign support

- Up to a maximum of three omni-directional slip bases with Redi-Torque Model 280 match plate hardware may be installed within a 7’ span on mainline roadway.
- For additional wind load capability, a post of the next size smaller may be inserted into the square sign support.
PARTS LIST
(A) Unibase – Lower Slip Plate
| ITEM | QTY. | DESCRIPTION |
|---|---|---|
| (A) | 1 | Combination anchor/lower slip plate |
(B) Redi-Torque Match Plate Hardware
| ITEM | QTY. | DESCRIPTION |
|---|---|---|
| (B1) | 3 | ½” 13 x 3” gr. 8 Redi-Torque bolt |
| (B2) | 6 | 5/8” U.S.S. flat washer |
| (B3) | 3 | 3/16”-thick, Teflon-coated slip washer |
| (B4) | 3 | ½” 13 gr. 8 large-diameter flange nut |
| (B5)* | 0 | 1/16”-thick leveling shim |
(C) Upper Slip Plate Sub-Assembly
| ITEM | QTY. | DESCRIPTION |
|---|---|---|
| (C) | 1 | Top receiver for square sign support |
| (C1) | 1 | Square sign support locking wedge |
INSTRUCTIONS
Step A
NOTES:
- For soil or concrete installation options, see details below.
- If installing in concrete, auger the footing hole shallow enough to be able to drive 3-4 inches of unibase (A) into the bottom of the hole. This will help stabilize the unit as concrete is being poured and cured while also allowing for proper drainage.
- On multi-leg installations, be sure that all unibases are squared and lined up with each other.

1. Install appropriate unibase (A) plumb and squared up with road, with point of triangular slip plate facing oncoming traffic.
2. Depth of embedment to leave 2½” (+1½”/-½”) from grade to top of lower slip plate of unibase (A).

Step A1
Installation Details

NOTE: Recommended footing size is a minimum of 12" in diameter and 30" deep.

NOTE: Install with the widest bearing surface of the stabilizing wing parallel with the face of the sign.
Step B (Start here for reinstallation)
NOTE: Tighten bolts using ONLY the 3/4" larger hex head to ensure the plates are as parallel as possible. The smaller hex head will be used in the next step.

1. Place one each Teflon-coated slip washer (B3) on top of lower slip plate of unibase (A) at each notched point with open end of slot facing center of triangular slip plate. Leave enough room between the closed ends of the slot/notch to allow Ø1/2" Redi-Torque bolt (B1) to pass through.

Step B1
2. Place upper slip plate (C) onto the three slip washers (B3) properly indexed so that square post receiver portion is squared up with road.
3. Slide 1 each 5/8" flat washer (B2) onto each Redi-Torque bolt (B1) then insert bolt (B1) with washer (B2) down through notched points of upper slip plate (C), slot of slip washer (B3), and notched point of lower slip plate of unibase (A).

Step B2
4. Slide 1 each 5/8" flat washer (B2) up on exposed thread of each bolt (B1) followed by threading 1 each 1/2" flange nut (B4) onto each bolt (B1) one half turn past finger tight.
Step C
1. Insert square sign support into upper slip plate (C) receiver until support bottoms out.
2. With a handheld hammer, drive the square sign support locking wedge (C1) into the upper slip plate (C) receiver at the pre-determined corner, marked by a ¼” notch. (The locking wedge does not need to be driven flush with the top of upper slip plate receiver.)
*SHIMMING: Before moving on to Step 3, check the plumb of the sign support(s). If necessary, 1/16”- thick leveling shim(s) (B5) may be used at the appropriate point(s) between slip plates. To replumb, loosen bolt (B1) using the ¾” larger hex head at desired point enough to lean the upper slip plate (C) back and slide leveling shim (B5) into place. Shim(s) should be placed under Teflon-coated slip washer. Maximum of 2 each leveling shims per notched point.

3. After locking wedge (C1) is securely in place, use the ¾” larger hex head to loosen each bolt (B1) and nut (B4) one at a time, then retighten each bolt (B1) using the 9/16” (smaller) hex until the 9/16” hex head twists off from the ¾” hex head. This will set the proper torque level.
MODEL 280SB-SQ1
Stem base with separate heavy-duty anchor | Receives square sign support

- Up to a maximum of three omni-directional slip bases with Redi-Torque Model 280 match plate hardware may be installed within a 7' span.
- For additional wind load capability, a post of the next size smaller may be inserted into the square sign support.
PARTS LIST
(A1) Heavy-Duty Anchor
| ITEM | QTY. | DESCRIPTION |
|---|---|---|
| (A1) | 1 | Anchor for slip base bottom w/ stem |
(A2) Lower Slip Plate Sub-Assembly
| ITEM | QTY. | DESCRIPTION |
|---|---|---|
| (A2) | 1 | Bottom half slip plate w/ stem |
| (A3) | 2 | 3/8" 16 gr. 8 flanged shoulder bolt |
| (A4) | 2 | 3/8" 16 gr. 8 serrated flange nut |
(B) Redi-Torque Match Plate Hardware
| ITEM | QTY. | DESCRIPTION |
|---|---|---|
| (B1) | 3 | 1/2” 13 x 3” gr. 8 Redi-Torque bolt |
| (B2) | 6 | 5/8" U.S.S. flat washer |
| (B3) | 3 | 3/16"-thick, Teflon-coated slip washer |
| (B4) | 3 | 1/2" 13 gr. 8 large-diameter flange nut |
| (B5)* | 0 | 1/16"-thick leveling shim |
(C) Upper Slip Plate Sub-Assembly
| ITEM | QTY. | DESCRIPTION |
|---|---|---|
| (C) | 1 | Top receiver for square sign support |
| (C1) | 2 | Square sign support locking wedge |
INSTRUCTIONS
Step A
NOTES:
- For soil or concrete installation options, see details below.
- If installing in concrete, auger the footing hole shallow enough to be able to drive 3-4 inches of anchor (A1) into the bottom of the hole. This will help stabilize the unit as concrete is being poured and cured while also allowing for proper drainage.
- On multi-leg installations, be sure that all anchors are squared and lined up with each other.

1. Install appropriate heavy-duty anchor (A1) plumb and squared up with road.
2. Depth of embedment to leave 2½” (+/-1/4”) from grade to top of anchor.
3. Insert stem of bottom sub-assembly (A2) into anchor (A1) correctly indexed so that the point of triangular slip plate is facing oncoming traffic.
4. Insert both shoulder bolts (A3) so that top bolt is parallel with and the bottom bolt is perpendicular to traffic. Fully tighten both flange nuts (A4) on both shoulder bolts (A3). TORQUE NUTS AS TIGHT AS POSSIBLE.

Step A3
Installation Details

NOTE: Recommended footing size is a minimum of 12" in diameter and 30" deep.

NOTE: Install with the widest bearing surface of the stabilizing wing parallel with the face of the sign.
Step B (Start here for reinstallation)
NOTE: Tighten bolts using ONLY the 3/4" larger hex head to ensure the plates are as parallel as possible. The smaller hex head will be used in the next step.

1. Place one each Teflon-coated slip washer (B3) on top of lower slip plate (A2) at each notched point with open end of slot facing center of triangular slip plate. Leave enough room between the closed ends of the slot/notch to allow Ø1/2" Redi-Torque bolt (B1) to pass through.

Step B1
2. Place upper slip plate (C) onto the three slip washers (B3) properly indexed so that square post receiver portion is squared up with road.
3. Slide 1 each 5/8" flat washer (B2) onto each Redi-Torque bolt (B1) then insert bolt (B1) with washer (B2) down through notched points of upper slip plate (C), slot of slip washer (B3), and notched point of lower slip plate (A2).
4. Slide 1 each 5/8" flat washer (B2) up on exposed thread of each bolt (B1) followed by threading 1 each 1/2" flange nut (B4) onto each bolt (B1) one half turn past finger tight.

Step B2
Step C
1. Insert square sign support into upper slip plate (C) receiver until support bottoms out.
2. With a handheld hammer, drive the square sign support locking wedge (C1) into the upper slip plate (C) receiver at the pre-determined corner, marked by a ¼” notch. (The locking wedge does not need to be driven flush with the top of upper slip plate receiver.)
*SHIMMING: Before moving on to Step 3, check the plumb of the sign support(s). If necessary, 1/16”- thick leveling shim(s) (B5) may be used at the appropriate point(s) between slip plates. To replumb, loosen bolt (B1) using the ¾” larger hex head at desired point enough to lean the upper slip plate (C) back and slide leveling shim (B5) into place. Shim(s) should be placed under Teflon-coated slip washer. Maximum of 2 each leveling shims per notched point.

3. After locking wedge (C1) is securely in place, use the ¾” larger hex head to loosen each bolt (B1) and nut (B4) one at a time, then retighten each bolt (B1) using the 9/16” (smaller) hex until the 9/16” hex head twists off from the ¾” hex head. This will set the proper torque level.