Comparison : Item # SDRB-86.40, Square Positive with Hole, h 0.260 / 0.270 in
Item # SDRB8-2.190THK, Square Positive with Hole, h 0.276 / 0.282 in
Item # SDRB860, Square Positive with Hole, h 0.260 / 0.270 in
Item # SPRA530, Square Positive with Hole, h 0.248 / 0.252 in
Item # SPRA634.125HOLE, Square Positive with Hole, h 0.127 / 0.137 in