APPLICATION TECHNOLOGY
Spiralock® thread form nuts
STANLEY Engineered Fastening now offers self-locking Spiralock® F T thread form in a
full range of corrosion resistant, stainless steel, fractional and metric hex flange nuts. or more than 35 years, the Spiralock®
thread form has been used in extreme fastening applications where joint
failure or loosening is not an option – from the main engines of NASA’s Space Shuttle, the Saturn Cassini orbiter and Titan Huygens probe, to deep sea oil rigs, military and aerospace vehicles, as well as medical implants such as artificial limbs and heart pumps.
STANLEY points out that its Spiralock threaded nuts accept standard male fasteners; eliminate the need for other
locking devices; minimise galling – since it is free spinning until clamp load is applied; and substantially reduce the potential for fatigue failure compared to standard threads. “The Spiralock thread form solves thread loosening and joint integrity issues by changing the physics of how the threads
interact. In traditional 60° threads, the gap between the upper edges of the male and female threads can lead to shock, vibration, or temperature caused thread loosening. Stress concentration and fatigue at the first few engaged threads is also a problem, particularly with softer metals. The unique profile of Spiralock threads closes the gap that causes loosening, improving the integrity and reliability of threaded joints.” Industries concerned about corrosion will also benefit from the corrosion protection delivered by the nuts’ grade 316 austenitic stainless steel composition, which can be used instead of lower grades of stainless steel.
Jubilee secures pole position
The 2014 motorsport calendar is in full swing and once again Jubilee Clips will be used extensively across a number of series and models and at some of the most prestigious races, such as Le Mans and the Monaco Grand Prix.
ips
ome Prix.
his season has a special focus for Jubilee Clips as the company has reached an agreement to sponsor Amigo Motorsport driver Rob Gaffney in the single make UK Ginetta GT5 series. If there is one thing racing drivers hate it is being beaten by an equipment
failure, which means that selecting the right components is critical – which is why Ginetta specified the Jubilee brand. “In all of the years I’ve worked on racing cars I can honestly say I have never been let down by a genuine Jubilee Clip,”
commented Fred Marsh, Amigo Motorsport’s chief mechanic. “Those guys have more experience than anyone in making hose clips and I can see why Ginetta specified Jubilee by brand.” On Jubilee’s involvement in supply hose clamps, Ian Jennings, managing director at Jubilee Clips, said: “I am a big fan of
motorsport. I love to see engineering pushed to the limits because going further and faster and competing for the win is what it is all about. Like our company, Amigo Motorsport is a family venture, proving that enthusiasm is more important than budget. They’ve been very welcoming to us and we were very happy to help them out with their ambitious plans.”
www.jubileeclips.co.uk Hex sealing nuts with locking patch
ZaGO Manufacturing Inc’s hex sealing nuts now come with nylon patch as an extra added value, which the company says results in the ultimate protection, with locking and sealing in one design.
H
ex sealing nuts block air, liquid, dust and other contaminants with a special defensive rubber, while resisting vibration with the patch-locking element. ZaGO manufactures these nuts with a groove to capture an O-ring, transforming an ordinary nut into a sealing nut with full metal-to-metal contact. The sealing nuts are then put through a second process where a nylon patch is permanently spray
bonded onto the threads creating a locking element to withstand vibration. In cases of severe pressure, ZaGO says that its self-sealing nuts offer the ultimate sealing protection and can withstand extreme conditions due to their unique design, which features a rubber layer on the face of the nut.
102 Fastener + Fixing Magazine • Issue 88 July 2014
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