Quick view Grease Cups Model grease cups machined from brass available in the following sizes. 5-40 thread, 3/8" long x 1/4" diameter. 8-32 thread, 7/16" long x 5/16" diameter. 10-32 thread, 1/2" long x 3/8" diameter. MSRP: Was: Now: $5.50 - $6.00 Choose Options