Available Lengths Ends are cut square and sanded. See photograph for an example.
eBay
304 Stainless Steel Rod 2mm 2.5mm 3mm 4mm 5mm 6mm 8mm 10mm 14mm linear shaft metric round rod 125mm 200mm 250mm 330mm 500mm Long
Aliexpress UK
Generally, PVC is light weight, water resistant, has good property flow with high heat stability, easy to colour and finished products have a good surface finish. In lengths of: 50mm (sample), 100mm, 150mm, 200mm, 300mm, 600mm.
eBay
5Pcs/set High Speed Steel Solid Round Rod 2mm 3mm 4mm 5mm 6mm 8mm linear shaft metric round rod Length 200mm
Aliexpress UK
Nylon Rod Round Bar Natural Colour 4, 5, 6, 8, 10, 12, 16, 20mm - up to 600mm long. Proper design techniques can substantially compensate for this factor. Lengths available include 50 (4mm only), 100,150, 200, 300, & 600mm long.
eBay
304 Stainless Steel Rod 2mm 2.5mm 3mm 4mm 5mm 6mm 8mm 10mm 14mm linear shaft metric round rod 125mm 200mm 250mm 330mm 500mm Long
Aliexpress UK
This material is very good for machining and processing. Brilliant for the model engineer and prototype builder. Bearings and gears with small clearances. Gear wheels with small modulus.
eBay
Zinc Rod High Purity Anode Zn Bar Anti-corrosion Solid Round Zinc Rod Scientific Research Experiment Metal Thick 2mm To 100mm
Aliexpress UK
Plastic Build ABS Bar Tube Strip Styrene Rod Tubes Angles Model Scratch Building
eBay
2mm 3mm 5mm 6mm 8mm 10mm 12mm Diameter Linear Shaft Stainless Steel Rod Solid Round Rod Bar Stock for DIY Craft Lathe Tool Model
Aliexpress UK
Available in the following lengths : 100mm, 150mm, 200mm, 300mm, 600mm. PTFE is a very useful material because it has a unique combination of properties. PTFE is chemically inert, weatherable, excellent electrical insulation, high temperature resistance, a low coefficient of friction and non-adhesive properties.
eBay
304 Stainlesss Steel Rod 0.8mm- 1.8mm 2mm 2.5mm 3mm 4mm 5mm 6mm 8mm 10mm 14mm linear shaft metric round rod 125mm 500mm Long
Aliexpress UK
Uses：Suitable for DIY sand table, architectural models, landscape, decorative materials. Material：ABS（ ABS engineering plastic is not easy to deform, bendable and not easy to break when heated, easy to process, easy to cut, and has high impact toughness.
eBay
0.5kg 304 308 316L Stainless Steel TIG Welding Rods 1.6mm-3.2mm Stainless Steel Welded Wire Argon Arc Welding Rod
Aliexpress UK
Acrylic Bubble Rod Clear Dia 5, 6, 10, 12, 15, 20mm, 100mm to 600mm Long Bars - Food Safe. 100mm, 150mm,200mm, 300mm, 600mm. These bubble rods are produced from, clear extruded acrylic. This product is food safe.
eBay
1 set d: 8mm Horizontal Screw Rod or 1 set Vertical Screw Rod 200mm- 500mm Kande 304 T8 304 Lead Screw OD 8mm Lead 2mm Pitch
Aliexpress UK