Panel screws come pre-assembled with Split L, Internal Tooth L, or External Tooth L washers, and are available in nine head styles. Four come slotted or Phillips: pan head, fillister, round head, and flat head; binding head comes slotted only. Other styles include socket head cap, hex head machine, hex socket flat captive head, and hex socket low head. The panel screw assembly comes with silicon-bronze split-lock washers, copper alloy No. 651 or 655, internal or external phosphor bronze lock washers, copper alloy No. 510, and brass flat washers No. 260.
Accurate Machine Screw Co., 10 Audrey Place, Fairfield, NJ 07004.
In this new Design News feature, "How it Works," we’re starting off by examining the inner workings of the electronic cigarette. While e-cigarettes seemed like a gimmick just two or three years ago, they’re catching fire -- so to speak. Sales topped $1 billion last year and are set to hit $10 billion by 2017. Cigarette companies are fighting back by buying up e-cigarette manufacturers.
Microchip recently released the 3D TouchPad, the first USB PC Peripheral device that couples 2D multi-touch input with 3D air gesture technology. The company seeks the help of developers to further enhance the capabilities of the technology.
To give engineers a better idea of the range of resins and polymers available as alternatives to other materials, this Technology Roundup presents several articles on engineering plastics that can do the job.
Focus on Fundamentals consists of 45-minute on-line classes that cover a host of technologies. You learn without leaving the comfort of your desk. All classes are taught by subject-matter experts and all are archived. So if you can't attend live, attend at your convenience.