Sign Mounting Hardware
For use with U-Channel, Square and Fiberglass Posts
Size:
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Laminate:
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Recommended Accessories
Product Information
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Sign Bolting Sets are the economical method for mounting traffic, parking, facility and property signs. Each set contains two 5/16” diameter hex-head bolts, two nuts, and four zinc coated washers. These bolts can be used to mount signs with 3/8” mounting holes on U-Channel posts, composite posts, and square posts. 2" bolts are required for 1.12 lbs./ft. U-Channel posts and our composite fiberglass posts. 2-1/2" bolts are required for 1-3/4” square posts and 2 lbs./ft. U-channel posts with or without the addition of our sign saver plates. 3” bolts are required to mount signs on 2” square posts. A 1/2" socket and ratchet wrench and 1/2" combination wrench will be needed to install these bolts.


1¾″ Square Post with Standard Bolting Set
2″ Square Post with Standard Bolting Set
U-Channel Post (1.12 lbs./ft) with Standard Bolting Set
U-Channel Post (2 lbs./ft) with Standard Bolting Set
5/16″ Zinc Plated Steel Hex-Head Bolt Set
Hex-head bolts are the economic solution for installing traffic signs, parking signs, property signs, and facility signs with ⅜″ mounting holes. The tables below detail which size bolts should be purchased with each type of applicable post.
What size bolts should I use with my U-Channel post?
Post Size | Recommended Bolt Size to Mount 1 Sign with Sign Saver Plates |
Recommended Bolt Size to Mount 2 Signs Back-to-Back with Sign Saver Plates |
---|---|---|
4 ft. U-Channel Post (2 lbs./ft.) | 5/16″ × 2½″ | 5/16″ × 2½″ |
6 ft. U-Channel Post (1.12 lbs./ft.) | 5/16″ × 1½″ | 5/16″ × 2″ |
6 ft. U-Channel Post (2 lbs./ft.) | 5/16″ × 2½″ | 5/16″ × 2½″ |
8 ft. U-Channel Post (2 lbs./ft.) | 5/16″ × 2½″ | 5/16″ × 2½″ |
10 ft. U-Channel Post (2 lbs./ft.) | 5/16″ × 2½″ | 5/16″ × 2½″ |
12 ft. U-Channel Post (2 lbs./ft.) | 5/16″ × 2½″ | 5/16″ × 2½″ |
What size bolts should I use with my square post?
Post Size | Recommended Bolt Size to Mount 1 Sign |
Recommended Bolt Size to Mount 2 Signs Back-to-Back |
---|---|---|
6 ft. × 1¾″ Square Post | 5/16″ × 2½″ | 5/16″ × 2½″ |
8 ft. × 1¾″ Square Post | 5/16″ × 2½″ | 5/16″ × 2½″ |
8 ft. × 2″ Square Post | 5/16″ × 3″ | 5/16″ × 3″ |
10 ft. × 1¾″ Square Post | 5/16″ × 2½″ | 5/16″ × 2½″ |
10 ft. × 2″ Square Post | 5/16″ × 3″ | 5/16″ × 3″ |
What size bolts should I use with my fiberglass composite post?
Installing Standard Hex-Head Bolts
Tools required:
- A ½″ socket and ratchet wrench, and ½″ combination wrench.
Installation instructions:
- Place the sign on the square post where it meets your height requirement and line up the mounting holes with the holes on the post.
- Using the appropriate size bolts, insert a washer over the 5/16″ bolts and then insert the bolts into the mounting holes of the sign and through the post.
- Insert a washer on the other end of the bolt followed by the nut and tighten down.
Optional:
- Add a pair of our ribbed sign saver plates that prevents the possibility of sign dimpling during bolt tightening.