EuroWire July 2024

Products

New range of screws with optimised thread profile

The efficient and effective operation of automotive applications, domestic appliances and industrial machinery can depend on the use of reliable screws, bolts, washers and clips. Plas-Tech 30-20® screws – the latest product launch from TR Fastenings – aim to give customers advantages in their production processes. Manufactured in TR’s own facilities, the Plas-Tech 30-20 was developed by in-house technical engineering teams across global locations to complement the existing Plas-Tech range. The new product has an optimised thread profile that is claimed to provide advanced performance in a wide variety of plastic materials. Plas-Tech 30-20 screws are new to the market, but are part of the company’s established Plas-Tech range, and are available with various protective coatings. They are said to be of particular importance in the automotive, tech/infrastructure and health/home markets. The screws were developed to offer several advantages over conventional thread-forming screws in plastic, including a 20 per cent finer pitch and lower flank angle to improve axial resistance; a reduced thread angle to lessen axial displacement; up to 25 per cent higher thread fill to improve maximum joint strength; and a smoother installation that heightens resistance to vibration. Key features of the Plas-Tech 30-20 include: • Minimal radial stress – the faceted thread profile directs material flow to reduce radial stress • Vibration resistance – the full engagement of the self locking, angled thread design avoids loosening • High torsional strength and tensile strength – a large core thread profile provides high strength • Optimal thread pitch – ensuring fastener engagement with a minimum number of rotations, keeping installation times to a minimum • High reusability – the fastener can be removed and re installed a number of times The range includes pan head, flange head and countersunk head varieties, enabling customers to choose the right option for each application. Thread diameters are 3, 4, 5 and 6mm,

TR’s Plas-Tech 30-20 screws

and lengths range from 6 to 30mm. The design allows the screw threads to displace the surrounding plastic, in the process strengthening the fix. TR Fastenings can also provide bespoke engineered products and a diverse selection of related components. The screws can be installed with a calibrated pneumatic or electric driver and are suited to robotic assembly processes. With standard drivers, installation is quick and easy, and the sturdy construction allows Plas-Tech 30-20 screws to be reused multiple times. Product engineers can find more information about the screws’ usage via TR’s installation guide and product animation video, on the company’s website and YouTube channel. Founded in 1973, TR is an international specialist in the design, engineering, manufacture and distribution of industrial fastenings and Category ‘C’ components, principally to major global assembly industries. As an international business it is able to provide 24/7 customer support across key regions in the UK, Asia, Europe and North America. In addition to its service locations, the company operates seven manufacturing facilities focused on high-volume cold-forged fasteners and special parts. It has also established technical and innovation centres to support R&D and customer collaboration around the world. TR Fastenings www.trfastenings.com

Premium fasteners from China Ningbo Ennaji Machinery Co, Ltd manufactures all kinds of fastener, adhering to ASTM, DIN, JIS, BS, ISO and AS standards. The company also crafts non-standard metal parts. Based in Luotuo Industrial Zone, Ningbo, China, the company’s products have been exported to more than 20 countries and areas, including Germany, Spain, Brazil, the USA, Korea, Russia, Malaysia and the Middle East. The production site hosts various hot forged bolt production lines, multi-station cold

Ennaji has its own research and develop ment department, and welcomes custom isation through drawings and samples. The experienced purchasing team can provide supply chain resources and services, to help customers reduce or eliminate many design, manufacturing and logistics problems. Ningbo Ennaji Machinery Co, Ltd www.enj-machinery.com

heading equipment and screw thread rolling equipment. Main products include hexagon socket cap screws, hexagon head bolts, square bolts, countersunk head fasteners, threaded rods and studs. Specifications include bolt levels 12.9/10.9/8.8/6.8, A325, A490, A394 and A449; and thread rods levels B7, B7M, L7, L7M and B16. Sizes range from 4 to 64mm (¼" to 2½").

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EF 5/39

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July 2024