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J C Gupta & Sons

J C Gupta & Sons

Fastener Super Speciality

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Category: Technical

Are Stainless Steel Fasteners Magnetic?

Posted on 01/11/202014/11/2020 By sungupta
Are Stainless Steel Fasteners Magnetic?
information, Technical

It is common belief that a simple test for stainless steel is to check with a magnet. If it attracts, the product is not stainless steel. However, this assumption is incorrect. “The stainless steel fasteners I received stick to a magnet.” This is one of the more frequently heard complaints among users. Stainless steel fasteners … Read More “Are Stainless Steel Fasteners Magnetic?” »

Thread Protrusion of a bolted assembly

Posted on 08/08/202005/10/2020 By sungupta
Technical

  What should be the minimum threads protruding beyond the nut in fastener assemblies? Possibly not much attention is given to this aspect. However it is pertinent to note that planning the correct bolt/screw length provides for a joint that ensures safety and saves space, weight and cost. A typical bolted fastener assembly will have … Read More “Thread Protrusion of a bolted assembly” »

Security Fastenings – Design Considerations

Posted on 27/03/202002/11/2020 By sungupta
Technical

The need to safeguard against theft and vandalism in now becoming an essential part of design specifications. Increasingly in this competitive world, public and private property has become highly vulnerable to tampering, vandalism and theft. This creates a number of undesirable consequences.   Impact of Theft and Tampering. Pilferage of Goods Vandalism – Destruction of … Read More “Security Fastenings – Design Considerations” »

How to select a suitable anchor fixing

Posted on 17/03/202004/10/2020 By sungupta
Guide, Technical

Anchor bolts are used extensively in concrete, brick and block masonry and cavities to make structural attachments and connections. To date, a limited amount of information has been available to aid designers and users in the selection and design of anchor bolts in various types of substrates. In new masonry construction, anchor bolts were commonly … Read More “How to select a suitable anchor fixing” »

Safely terminate Wire Rope ends

Posted on 04/02/202004/10/2020 By sungupta
Technical

A high performance steel wire rope always comes along with the functionally required and suitable rope end termination. The rope clip, sometimes called a u-bolt clamp or u-bolt clip is used to clamp the loose end of a length of wire rope, once it has been looped back to form an eye. These fittings consist … Read More “Safely terminate Wire Rope ends” »

GALLING – The bane of fastener failure

Posted on 25/01/202004/10/2020 By sungupta
Technical

Thread galling is a common, yet seldom understood problem with threaded fasteners. Galling, often referred to as a cold-welding process, can occur when the surfaces of male and female threads are placed under heavy pressure. The frustrating aspect of fastener galling is that galled nuts and bolts may pass all required inspections (threads, material, mechanical, … Read More “GALLING – The bane of fastener failure” »

Corrosion Analysis of Stainless and Plated Fasteners

Posted on 27/12/2019 By sungupta No Comments on Corrosion Analysis of Stainless and Plated Fasteners
Technical

COMPARATIVE ANALYSIS OF STAINLESS AND COATED CARBON STEEL FASTENERS Corrosion of stainless and carbon steel are very different, and this guidance provides information regarding general attack or surface corrosion as this is often a primary consideration when selecting fastener material. Carbon and stainless steel are the most common materials from which fasteners are manufactured and … Read More “Corrosion Analysis of Stainless and Plated Fasteners” »

DYNAMIC LOADING ON SPRING PINS

Posted on 26/12/201920/05/2020 By sungupta
Technical

AUSTENITIC STAINLESS STEEL SPRING PINS FOR DYNAMIC LOADING Austenitic nickel stainless steel Spring Pins are typically manufactured from grade SAE 301(1.4310).. Austenitic stainless steel is most frequently selected for its inherent corrosion resistance. While this material possesses the spring characteristics required for proper function of a Spring Pin, it does work harden if subjected to … Read More “DYNAMIC LOADING ON SPRING PINS” »

Riveting Soft Materials

Posted on 18/12/201919/12/2020 By sungupta No Comments on Riveting Soft Materials
Riveting Soft Materials
Technical

As products are increasingly utilising multi material assemblies, it has become important to understand the various options and processes available for joining the same. A common and useful method is using blind rivets which allow fast and convenient assembly. However, when joining soft or low density materials like plastics, wood, fabric etc., the rivet head … Read More “Riveting Soft Materials” »

Corrosion Failure of Fasteners

Posted on 02/02/201904/10/2020 By sungupta No Comments on Corrosion Failure of Fasteners
information, Technical

If you thought corrosion was merely about unsightly patches of red oxide – rust – which plague steel and iron products in coastal areas and offshore applications, think again. Corrosion is present everywhere and can occur in even the most arid land-locked countries. It’s also a case of prevention being better than cure as corrosion … Read More “Corrosion Failure of Fasteners” »

Select the right Fastener

Posted on 02/02/201904/10/2020 By sungupta No Comments on Select the right Fastener
Guide, Technical

Selection of the correct Fastener is very important. Begin by assessing the load that will be placed on it. Any metal fastener will hold well against a sideways (shear) force. But with a tensile force pulling the fastener straight out, holding strength becomes increasingly dependent on the threads (or formed head in the case of … Read More “Select the right Fastener” »

Structural Safety in Anchoring

Posted on 02/02/201904/10/2020 By sungupta No Comments on Structural Safety in Anchoring
information, Technical

Never risk structures to sub-standard fixings. What is a Safety-critical application? European Technical guidelines defines as “Applications in which the failure of an anchor could result in collapse or partial collapse of a structure, cause risk to human life, or lead to a significant economic loss”. Given the importance of the reliability and stability of … Read More “Structural Safety in Anchoring” »

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News

  • Are Stainless Steel Fasteners Magnetic? 01/11/2020
  • Thread Protrusion of a bolted assembly 08/08/2020
  • FASTENING TRENDS AND INNOVATION 29/04/2020
  • JOINING TECHNIQUES FOR PLASTICS 29/04/2020
  • COVID-19 Effects 25/04/2020
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