4" x 1.25" Conductive Performa Side-Lock Caster with 2.5" x 3.625" Plate for ESD Safety - Heavy-Duty and Secure Mobility for Electronic Equipment - 2.04256.445 COND BRK1 colson-header

COLSON HEADER

Colson 2.04256.445 4" x 1.25" Conductive Performa Side Lock Caster | CasterHQ

Wheel

4" x 1-1/4"

Capacity

250 lbs

Overall Height

5-1/8"

Plate Size

2-1/2" x 3-5/8"

Full specs Spec sheet (PDF)

$74.00 USD - $87.00 USD

Save 30%+ vs big-box distributors

In Stock · Ships in 1-3 Business Days

✉️ Email a Caster Solutions Expert (Mon–Fri 8–5 CST)

PO Net 30 ACH Tax-Exempt

Business Purchasing

Purchase orders accepted for approved accounts
Net 30 terms for qualified businesses
ACH, credit card, and tax-exempt ordering
Bulk and contract pricing on fleet quantities

Upload a PO / Quote·Request bulk pricing·844-439-4335

Not sure this is the right spec? Jordan (Founder) and Bob (45+ years in casters) review applications before you order.

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Product Overview

At a glance

Load capacity250 lbs

Wheel4" × 1-1/4" Gray Rubber

MountPlate — 2-1/2" x 3-5/8"

TypeSwivel with Brake with brake

Overall height5-1/8"

Temperature-20°F to 180°F

4" x 1.25" Conductive Performa Side-Lock Caster with 2.5" x 3.625" Plate - 2.04256.445 COND BRK1

Product Features

Size: 4" diameter x 1.25" width
Plate Dimensions: 2.5" x 3.625"
Material: Conductive Performa for electrostatic discharge safety
Locking Mechanism: Side-lock design for secure positioning
Weight Capacity: Robust construction suitable for heavy loads
Application: Ideal for use in sensitive electronic environments

The 4" x 1.25" Conductive Performa Side-Lock Caster - 2.04256.445 COND BRK1 is expertly designed for applications where electrostatic discharge (ESD) safety is paramount. Crafted from high-quality conductive materials, this caster is perfect for environments handling sensitive electronic equipment. The 2.5" x 3.625" plate ensures easy installation and stability, while the side-lock mechanism provides secure positioning, preventing accidental movement. With a robust design capable of supporting substantial weight, this caster enhances mobility and safety in any workspace. Choose the Conductive Performa Side-Lock Caster to optimize your equipment's functionality and protect valuable electronics.

Why Choose Our Conductive Performa Side-Lock Caster?

Investing in the 4" x 1.25" Conductive Performa Side-Lock Caster ensures that your operations are not only efficient but also safe. Its superior construction is designed to meet the demands of environments where ESD protection is critical. By incorporating this caster into your setup, you can enhance the safety and performance of your electronic equipment, ensuring reliable mobility without the risk of static damage. Experience the reliability and convenience of our side-lock caster, designed for professionals who prioritize quality and safety in their workspace.

Key Features

Top 10 Product Features

Durable Raceway: Full double ball hardened raceways ensure superior performance and long-lasting durability, equipped with multi-temp grease for extreme temperature adaptability.
Enhanced Safety: Features a Top Lock Brake (BRK1) that provides reliable locking capability, ensuring stability during use.
High Load Capacity: Supports a load capacity of up to 250 lb, making it suitable for various heavy-duty applications.
Optimal Mounting Height: Designed with a mounting height of 5.13 in for versatile installation across different equipment.
Wide Wheel Tread: 1.25 in wheel tread width offers excellent stability and maneuverability in diverse environments.
Conductive Wheel Material: Constructed from Conductive Performa material to prevent electrostatic discharge, protecting sensitive electronic equipment.
Attractive Design: Sleek grey wheel color on a black base enhances aesthetic appeal while maintaining functionality.
Efficient Wheel Profile: Features a flat tread design for smooth rolling and reduced friction during movement.
Temperature Resistance: Operates effectively in extreme conditions, with a temperature range of -45°F to +180°F.
Compliant and Reliable: RoHS compliant and NSF component certified (less thread guards), ensuring adherence to safety and quality standards.

Ordering & Shipping Information

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

Purchase orders — accepted from approved accounts

Net 30 terms — available on approved credit

ACH & all major cards — Visa, MC, Amex, Discover

Tax-exempt — submit your resale/exemption certificate

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.

Typical transit times after shipment

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.

Need an exact freight quote or blanket PO?

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.

Additional Information

Extended Product Information: 4" x 1.25" Conductive Performa Side-Lock Caster

The 4" x 1.25" Conductive Performa Side-Lock Caster (SKU: 2.04256.445 COND BRK1) is engineered to meet the rigorous demands of environments that require effective electrostatic discharge (ESD) safety. This high-performance caster is perfect for use in laboratories, manufacturing facilities, and other settings where sensitive electronic equipment is prevalent.

Key Features and Benefits

Durable Construction: Equipped with full double ball hardened raceways, this caster provides exceptional durability and performance, even in challenging conditions. The multi-temp grease ensures smooth operation in both extreme hot and cold temperatures.
Safety First: The top lock brake (BRK1) offers added safety by securing the caster in place when needed, preventing accidental movement.
Heavy Load Capacity: With a load capacity of 250 lb, this caster is suitable for heavy-duty applications, allowing it to handle substantial weights with ease.
Versatile Mounting: Designed with a mounting height of 5.13 inches, it can be easily installed on various equipment, ensuring compatibility across multiple applications.
Stability and Maneuverability: The 1.25-inch wide wheel tread enhances stability while providing smooth maneuverability in different environments.
Electrostatic Protection: Constructed from Conductive Performa material, this caster is designed to dissipate static electricity, protecting sensitive electronic devices from ESD damage.
Attractive Aesthetics: The grey wheel color combined with a black base not only provides functional benefits but also adds a modern touch to any setup.
Efficient Rolling: Featuring a flat tread design, this caster minimizes friction, ensuring effortless rolling across surfaces.
Wide Operating Range: Capable of withstanding temperatures from -45°F to +180°F, it is ideal for various operational environments.
Compliance Assurance: The caster is RoHS compliant and certified as an NSF component (without thread guards), reflecting its adherence to safety and quality standards.

Warranty and Support

This product comes with a 3-year warranty, ensuring that you have reliable support should any issues arise. Our commitment to quality and customer satisfaction is paramount, and we stand behind the durability and performance of our products.

Conclusion

The 4" x 1.25" Conductive Performa Side-Lock Caster is an essential component for any workspace requiring reliable mobility and ESD protection. Its robust features and design ensure it meets the highest standards of performance, making it the perfect choice for enhancing operational efficiency and safety.

Frequently Asked Questions

What is the load capacity of this caster?+

This Colson 2.04256.445 4" x 1.25" Conductive Performa Side Lock Caster is rated to 250 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.

What wheel does this caster use?+

This caster runs a Gray Rubber wheel with a 1-1/4" tread width. Rubber absorbs shock and protects floors, and runs quietly, which suits noise-sensitive and light-to-medium duty use.

What plate size and bolt pattern does it use?+

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.

Is this a swivel or rigid caster, and how does the brake work?+

This is a Swivel with Brake caster with a wheel brake. Swivel casters rotate 360 degrees for full maneuverability. The brake locks the wheel to hold the load in place. For most mobile equipment we recommend 2 swivel + 2 rigid, or 4 swivel with at least 2 brakes.

What temperature range can this caster handle?+

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.).

What floors and applications is it best for?+

The Gray Rubber wheel performs best on rough, uneven, or outdoor surfaces such as asphalt, gravel, and cracked concrete. For non-marking or clean-environment needs, ask us about matching tread options.

What is the overall mounted height?+

The overall height (floor to top of plate or stem) is 5-1/8". Account for it when checking equipment clearance, dock height, and ergonomic working height.

How do I order, and what are the terms?+

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).

Colson 2.04256.445 4" x 1.25" Conductive Performa Side Lock Caster | CasterHQ

$74.00

Technical Specifications

Identification
Brand	colson header
Dimensions & Mounting
Wheel Diameter	4"
Wheel Tread Width	1-1/4"
Overall Height	5-1/8"
Plate Size	2-1/2" x 3-5/8"
Bolt Hole Pattern	1-3/4" x 2-13/16"
Mount Style	Plate
Rig Type	Swivel with Brake
Load & Performance
Wheel Capacity	250 lbs
Temp Range	-20°F to 180°F
Brake Type	Side Lock Brake
Materials & Finish
Wheel Material	Gray Rubber
Wheel Core Material	Polyolefin
Frame Material	Zinc Plated Steel

Reference Dimensions

Overall Height5-1/8"

Wheel4" x 1-1/4"

Top Plate2-1/2" x 3-5/8"

Bolt Pattern1-3/4" x 2-13/16"

Wheel MaterialGray Rubber

Illustrative caster profile drawn to this item's proportions — dimensions are manufacturer specification values. Confirm against the technical table before ordering.

Compare Similar

4" x 1.25" TPR Total Lock Swivel Caster – 250 lb | 2 3/8" x 3 5/8" Plate | CasterHQ 4" x 1-1/4" · 250 lbs $24

4" x 1.25" Polyurethane Swivel Caster – 325 lb | 2.5" x 3.625" Top Plate | CasterHQ 4" x 1-1/4" · 260 lbs · Direct fit $14

4" x 1-1/4" Polyurethane Swivel Caster – 300 lb | 3-1/8" x 4-1/8" Plate | CasterHQ 4" x 1-1/4" · 300 lbs $19 View all 4′ x 1-1/4′ casters & wheels →

Will This Caster Handle Your Load?

Enter your loaded weight — we derate to 3 effective casters on a 4-caster rig, per industry practice for uneven floors.

Rated capacity: 250 lbs per caster. For dynamic loads, towing, or debris-strewn floors, apply additional safety factor · full engineering tools →

Fitment & Interchange

MountPlate

Plate Size2-1/2" x 3-5/8"

Bolt Pattern1-3/4" x 2-13/16"

Rig TypeSwivel with Brake

BrakeSide Lock Brake

Replacing an existing caster? Match the bolt pattern first, then wheel size · more 2-1/2" x 3-5/8" plate casters →

Documentation

Spec sheet (PDF) 30-day pricing honored Request STEP / CAD fileour engineers email it same day Caster selection guide Caster University Fleet & contract pricing Net 30 available

30-day returns · manufacturer warranty · spec support: 844-439-4335 (Mon–Fri 8–5 CST)

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Casters (in stock)	Load capacity	Wheel	Type	Overall height	Price
This itemColson 2.04256.445 4" x 1.25" Conductive Performa Side Lock Caster	250 lbs	4" × 1-1/4"Gray Rubber	Swivel with Brake + brake	5-1/8"	$74.00	Viewing
4" x 1.25" TPR Total Lock Swivel Caster – 250 lb	250 lbsSame capacity	4" × 1-1/4"Gray Rubber	Swivel with Total Lock Brake + brake	—	$24.00	View →
Direct fit4" x 1.25" Polyurethane Swivel Caster – 325 lb	260 lbsHeavier duty	4" × 1-1/4"Polyurethane	Swivel	4-1/8"	$14.00	View →
4" x 1-1/4" Polyurethane Swivel Caster – 300 lb	300 lbsHeavier duty	4" × 1-1/4"Polyurethane	Swivel	5-1/8"	$19.00	View →
4" x 1-1/4" Polyurethane Swivel Caster – 300 lb	300 lbsHeavier duty	4" × 1-1/4"Polyurethane	Swivel	5-1/8"	$19.00	View →