What is a 4-point wheelchair tie-down system?

A 4-point tie-down uses four retractors or straps — two at the front and two at the rear of the wheelchair — to secure the chair to the vehicle floor. When combined with a lap and shoulder belt for the occupant, it meets federal ADA and WC18 securement standards for paratransit, NEMT, and school bus transport.

Is wheelchair securement required by law?

Yes. The Americans with Disabilities Act (ADA) requires that all public transit vehicles equipped to transport wheelchair users must have an approved securement system. NEMT providers, paratransit operators, and school bus fleets are all subject to federal and state securement regulations. Failure to comply can result in fines and significant liability in the event of an accident.

What does WC18 compliant mean?

WC18 is the RESNA/ANSI standard that defines performance requirements for wheelchair tie-down and occupant restraint systems (WTORS). WC18-compliant products have been crash-tested to withstand higher load forces than previous standards, providing greater protection for wheelchair users in the event of a collision or sudden stop.

Which wheelchair securement brands do you carry?

We are an authorized dealer for Q'Straint, AMF Bruns, and Sure-Lok — the three leading manufacturers of wheelchair tie-down and occupant restraint systems worldwide. All products meet or exceed WC18 compliance standards where applicable.

What is the difference between an L-track and a Slide N' Click system?

L-track is a recessed floor channel that accepts fittings at any point along its length, giving installers maximum flexibility in retractor placement. Slide N' Click is Q'Straint's proprietary system using pre-set anchor points that allow faster, tool-free securement — popular in high-volume paratransit operations where speed of securement matters.

What is the difference between a manual and retractable wheelchair strap?

Manual straps are fixed-length webbing straps with a hook or loop connection — simple, affordable, and reliable. Retractable systems use a spring-loaded mechanism to automatically take up slack, making securement faster and reducing trip hazards from loose webbing. Electric retractors add powered retraction, ideal for operators or drivers with limited hand strength or mobility.

Do you offer fleet pricing for multiple vehicles?

Yes. We offer fleet pricing for operators outfitting five or more vehicles. Submit your vehicle count, vehicle type, and preferred brand through our Fleet Quote form and a specialist will respond within one business day.

Do your products come with installation instructions?

Yes. All products ship with manufacturer installation guides. We also maintain a full library of installation and user guides on our website for Q'Straint, AMF Bruns, and Sure-Lok products. Our specialists are also available by phone at 800.884.6456 if you need installation support at no charge.

FREE STANDARD SHIPPING ON ORDERS OVER $100 - 800.884.6456

Q'Straint M - Series Integrated Lap Belt with Snap Hooks | MM - 320 - WheelchairStrap.com

Q'Straint MM-320 Manual Lap Belt Assembly | MM-320

Vendor: Q'Straint
Regular price: $85.00
Sale price: $85.00
Unit price: per

Shipping calculated at checkout.

The MM-320 is a Q'Straint manual lap belt assembly from the M-Series line. A simple, durable lap restraint for wheelchair occupants in transit vehicles, compatible with M-Series securement systems.

SKU: MM-320 | VENDOR: Q'STRAINT

Q'Straint MM-320 Manual Lap Belt Assembly | MM-320

🚚 Free Shipping on Orders Over $100📦 Lap Belt Assembly🏷 Q'Straint

Key Features

🖐

Manual Tensioning

Operator manually tensions each strap — simple, reliable, no moving parts.

🔧

Universal Design

Compatible with standard L-Track and A-Track floor anchorage systems.

💰

Economical Solution

Cost-effective choice for operations requiring manual wheelchair securement.

✅

Certified & Compliant

Meets SAE J2249 and FMVSS 209 safety standards.

What's Included

Qty	Component	SKU
1	MM-320 Manual Lap Belt Assembly	MM-320

Full Feature Details

Key Feature Summary

Feature	Description
Manual Tensioning	Operator manually tensions each strap — simple, reliable, no moving parts.
Universal Design	Compatible with standard L-Track and A-Track floor anchorage systems.
Economical Solution	Cost-effective choice for operations requiring manual wheelchair securement.
Certified & Compliant	Meets SAE J2249 and FMVSS 209 safety standards.

Vehicle Applications

🚌 School Bus🚌 Transit / City Bus🚐 Minivan / WAV🚑 Paratransit / NEMT🚂 Rail / Coach

Standards & Compliance

SAE J2249Wheelchair Tie-Down & Occupant Restraint Systems

FMVSS 209Federal Motor Vehicle Safety Standard — Seat Belt Assemblies

📘 Compliance & Documentation: Visit our Compliance Resource Center.

🛡 Warranty: 1-year limited. *Registration required at qstraint.com for full coverage.

⚠ California Prop 65 Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. See qstraint.com/prop-65

Specifications

Specification	Detail
Brand	Q'Straint
SKU	MM-320
Price	$85.00 — per unit
Shipping	Free Shipping on Orders Over $100
Warranty	1-year limited
Type	Lap Belt
Operation	Manual
Series	MM / M-Series

Frequently Asked Questions

Is professional installation required? +

Yes. Q'Straint wheelchair securement systems must be installed by a qualified technician. Improper installation may void the warranty and compromise safety.

What is the warranty? +

Q'Straint offers a 1-year limited when registered at qstraint.com. See qstraint.com for full terms.

What vehicles is this compatible with? +

See Vehicle Applications above. Contact us at (972) 420-0800 or sales@wheelchairstrap.com for fleet questions.

Q'Straint MM-320 Manual Lap Belt Assembly | MM-320

Key Features

Manual Tensioning

Universal Design

Economical Solution

Certified & Compliant

What's Included

Full Feature Details

Vehicle Applications

Standards & Compliance

Specifications

Frequently Asked Questions

Related Products

Questions? We're here to help.