TechArchive

Original article date: July 1998

Phil Mould Managing Director of TRAQ Fasteners introduces the Bi_Fix range of quarter-turn fasteners ideal for use in most industries where access reliability and aesthetics are equally important.

The Bi-Fix quarter-turn fastener is used for securing panels and components where accessibility is important. It can be used wherever two elements have to be fastened and detached in a quick and safe manner. It is an attractive solution for the maintenance of machines and installations. The special characteristic is the quick and simple detachability. A 90deg turn of the stud unlocks the connections while finger pressure onto the head of the stud re-clicks the fastener into the locked position. In the locked position the two sides of the clip seize the notches of the stud. This connection cannot be opened by vibration or shocks unless they reach about 100g.

The simplest quarter-turn fastener consists of three parts:

• the stud which is located in the panel (loose part)
• the washer which fixes the stud in a way it cannot be lost
• the spring clip which is firmly installed to the shell

The range of Bi-Fix quarter turn-quick release fasteners includes a large range of self-aligning slam latches a range of enclosure hardware a comprehensive range of container hardware and a wide range of spring latches hasps and hinges not previously available in Europe. The fasteners can be manually or tool operated. Available in three sizes and types other styles and finishes are also available.

TRAQ Fasteners has taken the standard Bi-Fix range and introduced features to the system to offer flexibility on methods of operation retention and fastening. A good example of this is the range of clips or receptacles available with the range. Whilst most needs are covered by the original rivet-on versions variants now available include clip-in versions slide-on or slide-in clips weld-on direct or with secondary weld plate tolerance clips (even a clip-in tolerance clip) and the unique flat clip for use where space is at a premium. Also available is a clip-in clip for specific use with 19in racking systems which has become a standard throughout this industry.

Apart from the three standard head styles of the Bi-Fix studs there are no real restrictions on the type of head available from secure options where keys are needed to hinged wire forms. It is of course possible to manufacture the studs with any head or shank shape and for large volumes other manufacturing processes are available for instance a full range of plastic studs is already in the range.

The extensive range of clips and studs is complemented by an equally large choice of retainers including some that allow for the take-up of tolerances be they large or small. Where a more easily operated fastener is required a full range of spherical or pull-push studs is available which work on the principle of push to close and pull to open.

The range of self aligning slam latches has been the main area of product development to take place in the industry for years. All 11 Series Bi-Fix slam latches are available in most finishes and some with variable stud lengths facilitating use with any panel thickness up to about 65mm as standard. All but the plastic version are available with brass steel or stainless steel studs with housings and heads manufactured from zinc alloy.

All 16 Series Bi-Fix Slam latches are available in most finishes with all versions having stud lengths and stud materials to suit requirements. Alternative head types can be easily and inexpensively manufactured to incorporate company logos or varying shapes. Bi-Fix slam latches are aesthetically pleasing manufactured to high quality standards providing flexibility strength vibration resistance and an easily operated fastening system.

• TRAQ Fasteners
• Phil Mould
• 0121 520 7400

July 1998