Loctite 577 Pipe Thread Sealant, 1.7 fl oz, Tube, Yellow, High-Temp 35KR25 They have manual locking mechanisms

They have manual locking mechanisms that lock in place when weight is applied to prevent the platform from rolling away

Automatic Hopper Mixing

but stacking more than four may cause them to shift

Tangent Chart and Other Markings Graduations Inches to 8ths Tape Measure Product Grouping Wrap-a-Round/Diameter Tape Measure Blade Color Black

Compatible with Series E-60

Loctite 577 Pipe Thread Sealant, 1.7 fl oz, Tube, Yellow, High-Temp 35KR25 They have manual locking mechanismsPipe Thread Sealant, Cure Type Anaerobic, Series 577, Container Size 1. 7 fl oz, Container Type Tube, Maximum Operating Temperature 450 Degrees F, Minimum Operating Temperature 65 Degrees F, Maximum Operating Pressure for Liquids 10,000 psi, Color Yellow, For Material Type Metal, Stainless Steel, Specific Sealing Application General Purpose Thread Sealing, Standards ISO 10123, ISO 10964, For Maximum Thread Diameter 3 in, Application Method Brush,