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.
Specialty Casters
Gate Casters
BBQ Pit & Smoker Casters
Keyed Drive Wheels
Drywall Cart Casters
Skid Wheels & Casters for RVs
Leveling Casters
Shopping Cart Wheels & Casters
Band Equipment Casters & Wheels
Low Profile Casters
Cart Wheels & Casters
Toolbox Caster Sets
Bakery & High Temperature Casters
Kitchen Prep Table Caster Sets
Wire Shelving Casters
Silent Glide Casters

Optimize the performance of your equipment with the Colson Casters 3.5" x 1.25" Thermo Plain Rigid Caster. This caster features a robust thermoplastic wheel, designed to withstand moderate loads while providing excellent heat resistance. Its compact 2.5" x 3.625" plate allows for secure mounting, making it an ideal choice for medium-duty industrial applications. Whether you need reliable performance in warehouses, manufacturing facilities, or commercial environments, this caster delivers the strength and resilience required for consistent mobility. Upgrade your equipment with a caster built to handle tough conditions with ease and reliability.
The Colson Casters 3.5" x 1.25" Thermo Plain Rigid Caster is the perfect solution for industrial equipment that demands medium-duty strength and durability. Its heat-resistant thermoplastic construction ensures long-lasting performance, even in challenging environments.
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 Colson Casters 3.5" x 1.25" Thermo Plain Rigid Caster is designed to provide reliable performance for medium-duty industrial applications. Built with a high-quality thermoplastic wheel and a durable stainless steel frame, this caster is ideal for environments where heat resistance and long-lasting durability are key. The fixed rigid design ensures straight-line movement, making it perfect for machinery and equipment that requires stability.
The Colson Casters 3.5" x 1.25" Thermo Plain Rigid Caster is ideal for use in warehouses, manufacturing plants, and other industrial environments where durability and heat resistance are critical. Its ability to withstand extreme temperatures and its robust construction make it suitable for applications such as:
Colson Casters has been a leader in caster manufacturing for over 130 years, known for its innovation, quality, and customer satisfaction. The 3.5" x 1.25" Thermo Plain Rigid Caster reflects this commitment to excellence, offering a product that is not only durable but also engineered to meet the specific demands of industrial users. Backed by a 3-year warranty and RoHS compliance, this caster is an excellent investment for any business looking for reliable, long-lasting performance.
This Colson 2.03408.52 HT 3.5" x 1.25" Thermo Rigid Caster – 2.5" x 3.625" Plate is rated to 300 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 2-1/2" x 3-5/8" plate and a 1-3/4" x 2-13/16" bolt pattern. Measure your existing mounting holes before ordering; if you are replacing casters, match the bolt pattern - most standard patterns interchange across brands.
This is a Rigid caster. Rigid casters track straight for directional stability. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.
Rated for -20°F to 180°F. Operating outside the rated range can reduce wheel life and load capacity, so match it to your environment (wash-down, freezer, oven-adjacent, etc.).
The overall height (floor to top of plate or stem) is 4.69". Account for it when checking equipment clearance, dock height, and ergonomic working height.
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).
$68.00
| Identification | |
| Brand | colson header |
| Dimensions & Mounting | |
| Wheel Diameter | 3-1/2" |
| Wheel Tread Width | 1-1/4" |
| Overall Height | 4.69" |
| Plate Size | 2-1/2" x 3-5/8" |
| Bolt Hole Pattern | 1-3/4" x 2-13/16" |
| Mount Style | Plate |
| Rig Type | Rigid |
| Load & Performance | |
| Wheel Capacity | 300 lbs |
| Temp Range | -20°F to 180°F |
| Brake Type | No Brake |
| Materials & Finish | |
| Frame Material | Zinc Plated Steel |
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