A standard line of shaft collars and couplings that come in a variety of configurations, including paintable steel, for use in the square and hex drive systems found in commercial farm equipment is being introduced by from Stafford Manufacturing Corp. of Wilmington, Massachusetts. Stafford AG Shaft Collars are designed with the hex and square bores found in commercial farm equipment drives systems and can be supplied in sizes from 1/2" to 8" in the diagonal.  Available off-the-shelf, these farm equipment collars and couplings come in 1-pc, 2-pc, and set-screw styles. Machined from aluminum, stainless steel, and steel, which can be plain, plated, paintable, or case-hardened, Stafford AG Shaft Collars simplify machinery building and maintenance.  Threaded and keyed bores and other special features can also be provided to match customer specifications. Stafford AG Shaft Collars are priced according to material, style, size, and quantity. Price quotations and a catalog are available upon request.