Engineered to ease assembly of modules and multi-board stacks, the company’s Hardware Mounting Kits for PC/104 and PC104-Plus Bus Drives are useable with any of the PC/104 modules available in the market. Each kit includes all the hardware necessary to mount a single-board and comes with four each: #4-40 threaded spacers 0.6-in. length, #4-40 x 1/4 screws, and nuts. For kits with Brass components, request Catalog #PC104BR; for kits with Aluminum components request Catalog #PC104-AL; for kits with Stainless Steel components request Catalog #PC104-SS; and for kits with Nylon components request Catalog #PC104-NY. KEYSTONE ELECTRONICS CORP. Astoria, NY. (800) 221-5510.