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PRODUCT CATEGORIES
- Uncategorized
- Brackets
- Overhead/Guide Sign Brackets
- Posts & Accessories
- Road Signs and Materials
- Sheeting
- Sign Blanks
- Solar LED Signs
- Street Name Signs
- Traffic Signs
- Construction
- Custom
- Marker Route Signs
- Parking
- Regulatory
- School
- Warning
- OM Series Signs - Object Markers
- W1 Series Signs - Turn and Curve
- W2 Series Signs - Intersection
- W3 Series Signs - Advance Traffic Control
- W4 Series Signs - Merge and Lane Transition
- W5 Series Signs - Width Restriction
- W6 Series Signs - Divided Highway
- W7 Series Signs - Hill
- W8 Series Signs - Pavement Condition
- W9 Series Signs - Lane Transition
- W10,R15 Series Signs - Railroad and Light Rail
- W11 Series Signs - Advance Warning / Crossing
- W12, 13 Series Signs - Low Clearance
- W14 Series Signs - Dead End / No Outlet / No Passing
- W15, 16, 17 Series Signs - Playground /Supplemental/ Hump
- Trail, Recreational & Campground signs
- Sign Banding/Strapping & Accessories
- Sign Mounting Fasteners
- Work Zone/Construction Safety Products
Post Clamps
Sign clamps for round and square posts are available in a variety of sizes to fit your traffic sign needs.
Showing all 12 results
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Universal Casting
SKU: CLAMPS:UNCastings $5.05 -
Back-to-Back Sign Clamp for 2-3/8″ Round Post
SKU: CLAMPS:BBCLAMP238 $6.50 -
D Sign Clamp for 2-3/8″ Round Post
SKU: CLAMPS:DCLAMP238RND $15.00 -
R.H.S. Sign Clamp for 2″ Square Post
SKU: CLAMPS:RHSCLAMP200SQ $15.00 -
Single Side Sign Clamp for 2-3/8″ Round Post
SKU: CLAMPS:SSCLAMP238 $6.20 -
Single Side Sign Clamp for 2-7/8″ Round Post
SKU: CLAMPS: SSCLAMP278 $25.80 -
Single Side Sign Clamp for 4″ Round Post
SKU: CLAMPS: SSCLAMP400 $39.00 -
Square Bolt Set
SKU: CLAMPS:Square Bolt Set $1.45 -
U-Bolt Sign Clamp for 2-3/8″ Round Post – Galvanized
SKU: CLAMPS:UBCLAMP200 $20.20 -
U-Bolt Sign Clamp for 2-7/8″ Round Post – Galvanized
SKU: CLAMPS:UBCLAMP300 $20.20 -
U-Bolt Sign Clamp for 2-3/8″ Round Post
SKU: CLAMPS:UBCLAMP238 $7.20 -
Universal Channel Sign Clamp – Stainless Steel
SKU: CLAMPS:UNClampSS $13.00
Clamp Selection Guide
| Clamp Type | Post Type | Sign Application |
|---|---|---|
| Back-to-back Clamp | Round Post 2-3/8” | Two Traffic Signs |
| Single-side Clamps, various | Round Post 2-3/8”, 2-7/8″, 4″ and up | One Traffic Sign |
| RHS Clamp | Square Post 2″ | One Traffic Sign |
Technical Specifications & Compatibility
Installation Requirements
Hardware needed:
- Hardware included. Standard tools for installation.
All mounting hardware and tools are available in our Sign Mounting Fasteners section.
Real World Applications
Post clamp with aluminum extrusions attaches sign to round post for high-wind situations
Post clamp securely attaching warning sign to a round post
Showcases the warning sign held secure with the post clamps behind the sign