Quick-locking pin speeds assembly work

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Excerpt: The design features a solid, spring loaded “wedge-shaped plunger” that combines ease of use with secure fastening. The wedge-shaped plunger easily retracts when inserting the pin into a hole. The angled, ramp-like face of the wedge ensures smooth insertion. Once fully inserted, the plunger sprin …

A better coating for wind power bolts

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Excerpt: Andrew R. Pfeifer, Metal Coatings International Inc., Chardon, Ohio, metal-coatings.com Since the 1970s, users of high strength ASTM A490 bolts were prohibited from using metallic coatings. The main reason for this restriction was the possibility of early fracture due to hydrogen embrittlement. F …

LENTON LOCK Mechanical Rebar Splicing

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Excerpt: The LENTON LOCK S-Series, part of the LENTON LOCK Mechanical Rebar Splicing System from ERICO®, provides many of the same great benefits as the B-Series, except in a smaller package. This unique bolted splice is smaller than the competition and has fewer bolts, which helps reduce installation time …

Tools for Torque, Tools for Tension

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Excerpt: Wind turbine OEMs provide plenty of guidelines and instructions for tightening the bolts on their equipment. Each bolt gets a prescribed torque or tension. Bolts that fasten tower flanges, for instance, are often tightened to 2065 ft-lb. while foundation bolts are assigned a particular tension. Tens …

Tight or Not, This Bolt Tells

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Excerpt: The VLI or Visual Load Indicator is a tension indicator built into the head of a bolt or stud. Reading the dial tells whether or not the bolt has reached its proper fastener load. If the bright yellow tension indicator stripe is hidden on the black face, clamp load remains assured within ±5%. If th …

Cardinal Fastener’s Birdie Chart

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Excerpt: Several years ago, Cardinal Fastener developed a very simple, easy to read one page catalog, known in the industry as the "Birdie Chart™."  The Birdie Chart makes it easy to identify at a glance our manufacturing diameter range, the grades and head styles, as well as a description of the services …

Free washer catalog shows 24,000 nonstandard possibilities

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Excerpt: A 2010 Washer Catalog features an increased selection of 24,000 non-standard flat washer and spacer sizes available without tooling charges. The complimentary catalog from Boker’s Inc, Minneapolis, provides easy reference to available washers and spacers, which include ODs from 0.08 to 5.140 in. a …

Better Ways to Check Bolt Tension

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Excerpt: Wind turbine operations and maintenance procedures call for a 100% inspection of fastener tension after 500 hours of operation. This work is costly and can easily take a number of days to complete because each fastener is typically checked with a torque wrench to verify its proper tension. Torque i …

18,000 core parts online

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Excerpt: JW Winco offers a catalog with some 18,000 core items, standard parts, and engineering guidelines in about 1,000 color pages. A current line of modernly designed, ergonomically shaped, standard components, and its most recent patented products give equipment designed by others a 21st century look, f …

Tensioning bolts hydraulically

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Excerpt: Hydraulic mounting equipment from Riverhawk Co., New Hartford, NY, consist of specialized tools for installing and removing compressor wheels, thrust discs, and hydraulically fitted coupling hubs. The company says its bolt tensioning equipment has advantages of A modular design that …