Product Description
The Seatbelt Planet 3" Flat Bracket is a short, straight steel extension plate for seat belt mounting. It is a small part, but it solves a common problem in older cars and custom builds: the place where a belt end should anchor is not quite where the floor, the seat frame or the factory hole happens to be. A flat bracket moves the attachment point a few inches so the belt can lie at a better angle and reach the buckle comfortably.
What It Is
This is a straight, flat bracket with a hole at each end. Seatbelt Planet lists it as measuring 3 inches from the center of one hole to the center of the other, and each hole is 0.520 inch across, which suits the common 7/16-inch seat belt anchor bolt. One end bolts to the car at a solid anchor point, and the belt end fitting bolts to the other.
Specifications
- Straight flat extension style
- 3 inches center hole to center hole
- 0.520-inch hole size
- Steel construction
- Made to work with Seatbelt Planet lap belts, 3-point belts and mounting hardware
When a Flat Bracket Helps
Restorers often find that a new belt does not land where they want it. A bucket seat may sit farther inboard than the original bench, a console may crowd the buckle side, or a retractor may need to sit a little farther back. In each case a short extension bracket lets you keep using a sound anchor point while moving the belt end to where it actually works. It is also handy in hot rods and trucks where the seats, floor pan or tunnel were changed during the build.
Because this bracket is flat, it suits places where the anchor surface and the belt end sit in the same plane. If the belt needs to turn up from the floor or change direction, an angled bracket may be the better choice, and Seatbelt Planet makes several styles.
Installation Notes
A belt is only as strong as what holds it, so the anchor point matters more than the bracket. Bolt the bracket to a solid, rust-free floor, frame or reinforced mounting point, use a proper grade anchor bolt with a backing plate where the sheet metal is thin, and tighten everything to spec. Make sure the bracket cannot rotate into a position where the belt could rub a sharp edge. If you are not comfortable judging the strength of a mounting point, have a qualified shop check it before the car goes back on the road.
Planning Your Layout
Before you order, sit in the seat and look at where the lap belt will cross your hips. The belt should sit low across the pelvis, not up on the stomach. Measure from the anchor point to where you want the belt end to land, and that will tell you whether a 3-inch extension is the right length or whether you need something different. Order one bracket for each belt end that needs to move.
Part of a Complete Belt System
Seatbelt Planet builds belts, buckles and the hardware to mount them, so this bracket fits neatly alongside their lap belts, retractable belts and eyebolt kits. Whether you are restoring an original interior or adding belts to a car that never had them, the right small parts make the difference between a belt that sits awkwardly and one that you actually want to wear every time you drive.
Questions About the 3" Flat Bracket
How long is it?
3 inches from the center of one hole to the center of the other.
What size are the holes?
0.520 inch, which suits a standard 7/16-inch seat belt anchor bolt.
Is it flat or angled?
It is a straight, flat extension bracket.
What does it do?
It moves a belt's attachment point a few inches so the belt sits at a better angle or reaches the buckle more comfortably.
How many do I need?
Order one for each belt end you want to relocate.
Seatbelt Planet 3" Flat Bracket. specifications
- Seatbelt Planet mounting bracket / hardware accessory as titled
- Used with compatible Seatbelt Planet belts — confirm bolt size and bend style from the product page
- Follow any hardware notes packed with the part
Installation Tips — Seatbelt Planet 3" Flat Bracket.
- Confirm this listing matches your vehicle (the vehicle application shown in the title), seat type (bench vs bucket), and buckle/retractor style before installing.
- Inspect mounting points for solid metal structure. Seatbelt Planet products are aftermarket — fabrication or adapters may be required on some vehicles.
- Use appropriate grade hardware. Some listings sell mounting hardware separately.
- Install a complete belt assembly when possible; do not mix unmatched buckle and tongue brands.
- After install, verify full extension, retraction (if applicable), and latching before driving.
- If unsure, use a professional installer. Improper installation can cause serious injury.
Selection help: Seatbelt Planet FAQ / guides at seatbeltplanet.com/faq.html · phone 405-736-0088.
Vintage Car Radio does not offer installation.
Seatbelt Planet 3" Flat Bracket. manuals
- Seatbelt Planet FAQ (FMVSS, warranty, returns)
- Seatbelt Planet common questions / selection help
- Use any instruction sheet packed with your order for model-specific steps
Manufacturer: Seatbelt Planet · 405-736-0088
One-Year Seatbelt Planet Warranty
Per Seatbelt Planet, seat belts are covered under a one-year manufacturer warranty for component issues from the date shipped. Warranty returns are not accepted if there has been obvious abuse, the belt was involved in an accident, or the belt has been disassembled / components removed.
Seatbelt Planet also states a 90-day satisfaction guarantee; installed returns may be subject to a restocking fee. RMA required — contact Seatbelt Planet or Vintage Car Radio at 844-802-4499 / 574-226-6676.
Vintage Car Radio does not install seat belts.
FAQ — Seatbelt Planet 3" Flat Bracket.
Are these FMVSS / DOT approved?
Seatbelt Planet states belts are tested and certified to FMVSS 209 and 302; the certification tag is on the belt.
Can I replace only one side?
Seatbelt Planet recommends installing a complete belt — buckle and tongue are designed to work together.
Will this fit the vehicle application shown in the title?
Match the years, make/model, and seat position in the title. Call Seatbelt Planet at 405-736-0088 if you need a custom belt.
Do you install?
No.
Need help?
844-802-4499 / 574-226-6676, or Seatbelt Planet 405-736-0088.
Specs
Installation Tips
Manuals
Warranty
One-Year Seatbelt Planet Warranty
Per Seatbelt Planet, seat belts are covered under a one-year manufacturer warranty for component issues from the date shipped. Warranty returns are not accepted if there has been obvious abuse, the belt was involved in an accident, or the belt has been disassembled / components removed.
Seatbelt Planet also states a 90-day satisfaction guarantee; installed returns may be subject to a restocking fee. RMA required — contact Seatbelt Planet or Vintage Car Radio at 844-802-4499 / 574-226-6676.
Vintage Car Radio does not install seat belts.