Up to 350 lbs
Up to 7,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
Shock absorbing
Outdoor / rough terrain
View All Specialty Casters
Browse all specialty caster types
All measurements indicate the wheel diameter by the tread width.
The below capacity ranges indicate the working (dynamic) load that each caster will support. A safety factor should be included in your formula to determine your required load rating per caster.
W/(C-1)=R W is total weight needed to move. C is total number of casters required. R is ideal load rating, with safety factor built in. Divide the total load weight by one less caster than you will use to safely determine load rating.
Plate dimensions shown are overall mounting plate size.
When replacing existing casters, select the closest plate size and verify bolt-hole compatibility.
BHP = Bolt Hole Pattern, shown under each plate.

Upgrade your material handling solutions with the TL-4J Hamilton Floor Truck Lock. Designed specifically for 4" wheels, this lock boasts an extended height of 5 5/8" and a retracted height of 4 5/8", offering unparalleled versatility for a variety of applications. With a heavy-duty load capacity of 900 lbs., ensure the safe and secure transportation of your valuable loads.
Don't miss out on our exclusive offer. This top-quality caster lock is in stock and ready to ship within 24-48 hours, guaranteeing you the fastest delivery times.
Opt for the TL-4J Hamilton Floor Truck Lock for its durability, reliability, and quick shipping. Perfect for enhancing the functionality of your carts, dollies, and movable equipment. Secure your materials and move them with confidence!
Have questions? Our team of Caster Experts is available weekdays from 8 am to 5 pm to provide you with professional advice and support for your projects. Get in touch for personalized recommendations and insights.
Got questions? Our Caster Experts are here weekdays 8 am - 5 pm. Get expert advice for your project needs.
Order processing
In stock. Orders placed before 12pm CT (Mon–Fri) typically ship the same or next business day from our Mansfield, TX warehouse.
Shipping method
Smaller orders ship parcel (UPS/FedEx Ground). Heavy or bulk quantities consolidate to LTL freight. The method and final cost are shown before payment, so there are no post-checkout adjustments.
Payment & procurement terms
New to CasterHQ? Open an account or request terms and send your resale or tax-exemption certificate before ordering so it is applied at checkout.
Volume pricing & quotes
Quantity discounts apply automatically — no codes needed. For large, recurring, or custom requirements, request a bulk quote and our team will confirm pricing, lead time, and total landed freight upfront.
Returns & warranty
Stock items carry a 30-day return policy in unused, resalable condition. Made-to-order and custom items are non-returnable once production starts. All products carry the manufacturer's warranty against defects.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas and freight deliveries may take longer.
For pallet freight, scheduled releases, or blanket purchase orders, contact our team and we'll confirm total landed cost before you commit. Direct line: 844-439-4335.
The TL-4J Hamilton Floor Truck Lock is engineered for superior performance and flexibility in material handling applications. With an extended height of 5.625 inches and a retracted height of 4.625 inches, it offers adaptability across various scenarios. The 4 x 4.5 inch mounting plate ensures a robust installation, promising reliability and safety.
Choose the TL-4J Hamilton Floor Truck Lock for unmatched durability and flexibility in your material handling operations. Our product ensures your equipment remains secure and mobile, offering peace of mind with every use.
Have questions? Our Caster Experts are here to assist you weekdays from 8 am to 5 pm. Receive professional advice tailored to your project's specific needs, ensuring you make the best choice for your material handling solutions.
This Hamilton TL-4J Floor Truck Lock for 4" Wheels 900 lb Capacity is rated to 900 lbs per caster. Size a set by dividing the total load by the number of casters, and for uneven floors assume 3 of 4 casters carry the load. Keep continuous-use loads within about 75-80% of the rating.
This caster uses a top-plate mount with a 4" x 4-1/2" plate and a 2-5/8" x 3-3/8" slotted to 3" x 3" bolt pattern. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
We accept purchase orders and offer Net 30 on approved accounts, ACH, and all major cards, plus tax-exempt ordering with a resale or exemption certificate. Volume discounts apply automatically; request a bulk quote for large or recurring orders. Stock items carry a 30-day return policy in unused condition (made-to-order items are non-returnable once production starts).
$100.00
| Identification | |
| Brand | Hamilton |
| Dimensions & Mounting | |
| Plate Size | 4" x 4-1/2" |
| Bolt Hole Pattern | 2-5/8" x 3-3/8" slotted to 3" x 3" |
| Mount Style | Plate |
| Load & Performance | |
| Wheel Capacity | 900 lbs |
| Materials & Finish | |
| Frame Material | Zinc Plated Steel |
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