Up to 350 lbs
Up to 6,000 lbs
Up to 16,000 lbs
Up to 40,000 lbs
High-capacity loads
Shock absorbing
Corrosion resistant
Outdoor / rough terrain
OEM replacements
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.
Most in-stock items ship same or next business day. Shipping rates shown at checkout.
PRODUCT CODE: 12CPMHCP16PE
A 64-piece, zinc-finish steel mounting kit that secures a set of 4 plate-mount casters to a 1/2"-13 bolt-pattern equipment frame. Includes 16 carriage bolts, 16 hex thread-cutting screws, 16 SAE flat washers, and 16 nylon-insert lock nuts. Engineered for industrial cart, dolly, tool-box, and material-handling applications where a 1/2" bolt diameter matches the caster top plate.
| Pieces per kit | 64 (16 of each component) |
| Mounts | 4 plate-mount casters |
| Thread spec | 1/2"-13 UNC |
| Bolt length | 1" |
| Material | Low-carbon steel |
| Finish | Zinc plated |
| Bolt grade | ASTM A307 Grade A (carriage bolts) |
| Nut type | Grade 2 nylon-insert lock nut |
| Washer type | SAE general-purpose flat washer |
| Application | Indoor industrial; dry environments |
Fits any plate-mount caster with a 1/2" bolt-hole diameter — typically:
For 4" × 4-1/2" plates with 3/8" bolt holes, use our 3/8"-16 kit.
If you're mounting to thin-gauge steel (≤14 ga.), the thread-cutting screws self-tap and skip the need to drill clearance holes. For wood platforms or fabricated steel ≥1/8" thick, use the carriage bolts with a square hole punched or drilled to 1/2" — the square shoulder seats and prevents bolt rotation while you tighten the lock nut.
Need stainless, Grade 5/8, or a custom thread spec?
Our procurement team sources upgraded hardware for OEM, MRO, and aerospace builds. Same-day quote.
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Upfront shipping costs
Shipping is calculated by order size and weight. Final shipping costs are shown before payment so there are no surprises.
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We support bulk orders, repeat purchases, and fast quotes for larger or custom requirements.
Real support from product specialists
Need help confirming fit, compatibility, or application? Our team works directly with engineers, maintenance teams, and buyers every day.
Trusted by industrial and commercial customers
CasterHQ supplies casters and wheels for manufacturing, material handling, retail, and distribution environments nationwide.
When will my order ship?
In-stock items typically ship same or next business day. Weekend orders ship Monday or Tuesday unless stated otherwise.
Will shipping cost more at checkout?
Shipping is not free on most orders. Your final shipping cost is shown before payment.
Central & Southern U.S.: typically 1–2 business days
East & West Coasts: typically 2–3 business days
Remote areas may take longer.
Some custom products (select Made in USA casters, keyway wheels, drive wheels) are built after purchase and ship on a longer lead time. When applicable, the ship-time estimate is shown on the product page.
Contact us before ordering and we’ll confirm total landed cost upfront. Contact us.
$54.00
| No technical specifications available for this product. |
Designed for engineers, manufacturers, and material handling professionals
