CNC Machined UHMW

UHMW is a common plastic known for extreme durability, versatility, and cost-effectiveness. You can also count on UHMW parts to be reliably abrasion, impact, and chemical resistant.

Starting from $29



Our Ultra High Molecular Weight Polyethylene, or UHMW for short, was crafted as a unique solution for projects that needed durability, low friction, and chemical resistance. That means it’s used most often in wear applications that need a longer lifespan.

UHMW is self-lubricating, which ensures smooth and noiseless operations. Known for its extremely high molecular weight, it features an unsurpassed combination of slickness, toughness, and impact resistance.

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Used in a variety of applications

UHMW is also easy to machine with common woodworking tools, one of the contributing factors to its cost-effectiveness. The truly surprising thing about parts made from UHMW is that they often outperform metal parts in specific applications. 

As with other plastics like HDPE, UHMW is an excellent fit for marine construction applications for things like dock fender pads, pile guards, and anti-skid walkways. Similarly, these two materials tend to replace wood in these scenarios and they do not rot, splinter, or corrode like wood.

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Material Details

.375″ UHMW

Advertised Thickness .375″ | 9.53mm
Gauge N/A
Thickness Tolerance Positive .038″
Thickness Tolerance Negative .037″
Cutting Process CNC Router
Cut Tolerance .005″
Available Operations
Deburring No
Bending No
Countersinking Yes
Tapping No
Anodizing No
Plating No
Powder Coating No
Hardware No
Design Considerations
Min Part Size 1″ x 2″
Max Part Size 44″ x 30″
Min Hole Size (CNC Bit Size) .125″
Min Bridge Size .375″
Min Hole to Edge Size .113″
Tab and Slot Tolerance .045″
Min Part Size Countersink 1″ x 4″
Max Part Size Countersink 14″ x 46″
Countersink Min Minor .130″
Countersink Max Major .656″
Countersink Min Hole Center to Material Edge .453″
Density 59 lb/ft^3
Tensile Strength (Ultimate) 7.1 ksi
Impact Strength (Notched Izod)  
Fatigue Strength  
Flexural Modulus  
Flexural Strength  
Rockwell Hardness  
Elongation at Break 400%
Elastic Modulus 120 ksi
Poisson’s Ratio  
Thermal Conductivity 0.24 BTU/h-ft-°F
Melting Point 270°F
Magnetic No

Our CNC cut UHMW is guaranteed

We guarantee awesome quality parts. If you’re not 100% happy, we’ll give you a refund or remake on the spot – no questions, no hassle.

Plastic, composite, and wood materials cut on our CNC routers and waterjets will have small tabs.

These tabs hold your parts in place while being cut to ensure the best accuracy possible. Click below to learn what to expect and how to best design with these tabs in mind.

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We proudly use hardware by PEM

Flush Standoff, 4-40, .250" Zinc plus Clear Chromate

Thread Size4-40 x .250″
Hole size in sheet (+0.003/-.0.000).168″
Minimum sheet thickness0.040″
Maximum sheet thickness.125″
Fastener materialSteel
Minimum distance hole C/L to edge0.230″
When determining the distance between two or more fasteners, you can calculate the distance by the formula, C/L to edge + 1/2 the diameter of the second mounting hole..314″
Recommended panel materialSteel/Aluminum
Coating typeZinc
Aluminum material ranges (5052, 6061, 7075)0.040″-0.125″
Steel material ranges (CRS, HRPO, HR)0.048″-0.119″