Comparison : Item # TEC-M4LD, TEC Series® 0.173 Inch (in) Inner Diameter (A) SCM435 or 4130 Alloy Steel Washer
Item # TEC-M5LD, TEC Series® 0.213 Inch (in) Inner Diameter (A) SCM435 or 4130 Alloy Steel Washer
Item # TEC-M6LD, TEC Series® 0.256 Inch (in) Inner Diameter (A) SCM435 or 4130 Alloy Steel Washer
Item # TEC-1/4LD, TEC Series® 0.283 Inch (in) Inner Diameter (A) SCM435 or 4130 Alloy Steel Washer
Item # TEC-M8LD, TEC Series® 0.343 Inch (in) Inner Diameter (A) SCM435 or 4130 Alloy Steel Washer