J. C. Gupta & Sons

J. C. Gupta & Sons

J. C. Gupta & Sons

Sadar Patrappa Road, Bengaluru, Karnataka

Technical Information and Downloads

Here you will find all the technical guidance in information you may need to assist you in your product design and to select the correct or most suitable fastener for your application.

Some of the information that you can find here.

- Stainless Steel Material composition
- Guide for Material Selection
- Magnetic Properties of Stainless Steel Fasteners
- Tap Drill Charts
- Threading Guide
- Torque Guides
- Screw Drive Systems
- Mechanical Properties of Fasteners
- Material Finishing Guide



Blind Rivet Nut Technical Guide

REQUEST CALLBACK
  • Blind Rivet Nut Technical Guide
  • Blind Rivet Nut Technical Guide
  • Blind Rivet Nut Technical Guide
  • +2 Blind Rivet Nut Technical Guide

Ask for Price

Product Price: Ask Latest Price

Product Details:

Minimum Order Quantity25 Piece
MaterialSTEEL, STAINLESS STEEL, ALUMINIUM
Packaging TypeBOX
Usage/ApplicationThin Sheets, Sheet Metal
Product TypeRivet Nut
End TypeOPEN, CLOSED
ShapeROUND, SEMI-HEX, HEX

A blind rivet nut is a reliable system of inserting high quality load bearing threads in thin gauge materials.

This is an ideal solution for thin walled applications.

The attached guide gives a better understanding of this fastener.

Yes! I am interested

View PDF

Magnetism of Stainless Steel Fasteners

REQUEST CALLBACK

Ask for Price

Product Price: Ask Latest Price

Product Details:

Minimum Order Quantity25 Piece
Material Grade300 SERIES
MaterialSTAINLESS STEEL
Item CodeB2 B4 B6 B9
Product TypeCORROSION RESISTANT FASTENER
Surface TreatmentPASSIVATED
Packaging TypeBox

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. All cold worked Stainless Steel Fasteners get magnetised. The extent of magnetism induced varies for different grades and is explained in ISO-3506-2.

Unless you need a fastener which is used in a product like medical MRI instruments wherein any magnetism affects the results, you may select the grade suitable for corrosion resistance as necessary for your application. For certain highly sensitive instruments wherein the function is affected by magnetism of any of the assembly components, alternative materials like Titanium or Non-Metallic fasteners may be selected.

For corrosion resistance, the properties of stainless steel 300 series are unaffected by the extent of magnetism in the fastener.


Yes! I am interested

View PDF

Blind Rivets Technical Guide

REQUEST CALLBACK

Ask for Price

Product Price: Ask Latest Price

Product Details:

Minimum Order Quantity25 Piece
Size2.4 to 6.4
Techniqueblind fastener
FinishNatural
FeaturesBreak Stem Rivets
Heat TreatmentNONE
Usage/ApplicationJOINING
I Deal InNew Only

Blind Rivets are popular fasteners where sheets have to be riveted together. One end is called a mandrel that breaks off during installation with a specially designed tool.
Blind Rivet

These are also known as Pop Rivets/ Gun Rivets/ Break-Stem Rivets.
Download the Technical Guide


Yes! I am interested

View PDF
Save time! Get the Best Deal

*Your information is safe with us.

Self Drilling Screws Technical Guide

REQUEST CALLBACK
  • Self Drilling Screws Technical Guide
  • Self Drilling Screws Technical Guide
  • Self Drilling Screws Technical Guide

Ask for Price

Product Price: Ask Latest Price

Product Details:

Minimum Order Quantity25 Piece
Size2.9mm to 6.4mm
Usage/ApplicationRoofing
MaterialStainless Steel
Product TypeSELF DRILL
Heat TreatmentYES
Packaging TypeBOX
Drilling Capacity1MM TO 6MM
Head ShapeHEX PAN AND CSK

A self-tapping screw is a screw which can tap its own hole as it is driven into the material.

Common features are the screw thread covering the whole length of the screw from tip to head and a pronounced thread hard enough for the intended substrate, often case-hardened

Some self-tapping screws are also self-drilling, which means that, in addition to the tap-like flute in the leading threads, there is also a preliminary drill-like fluted tip that looks much like the tip of a centre drill. These screws combine a drilling action and the fastener installation itself into only one driving motion (instead of separate drilling, tapping, and installing motions); they are thus very efficient in a variety of hard-substrate applications, from assembly lines to roofing.
Download the Technical guide here.


Yes! I am interested

View PDF

Self Tapping Inserts Technical Guide

REQUEST CALLBACK
  • Self Tapping Inserts Technical Guide
  • Self Tapping Inserts Technical Guide

Ask for Price

Product Price: Ask Latest Price

Product Details:

Minimum Order Quantity25 Piece
SizeM2 to M30
MaterialHardened Steel, Brass and Stainless Steel
CustomisationNot Customised
Product TypeTHREAD INSERT
Usage/ApplicationTHREAD REPAIR AND REINFORCEMENT
BrandBAERFIX
I Deal InNew Only

BAERFIX SELF TAPPING INSERTS

BaerFix are self tapping inserts from BAER, Germany, that are designed to cut their own threads as they are being driven into a drilled hole (self tapping). This provides a secure and high strength anchor in the parent material. BaerFix inserts do not require special tools for tapping. BaerFix is typically used for thread repair and thread reinforcement.

Download the technical information here.


Yes! I am interested

View PDF

Wire Thread Inserts Technical Guide

REQUEST CALLBACK
  • Wire Thread Inserts Technical Guide
  • Wire Thread Inserts Technical Guide
  • Wire Thread Inserts Technical Guide

Ask for Price

Product Price: Ask Latest Price

Product Details:

Minimum Order Quantity25 Piece
MaterialSTAINLESS STEEL AND PHOSPHOR BRONZE
FeatureWIRE THREAD INSERT
Usage/ApplicationTHREAD REPAIR AND REINFORCEMENT
BrandBAERCOIL

BAERCOIL THREAD INSERTS  These are wire thread inserts from BAER, Germany, made from austenitic chromium nickel steel (stainless steel AISI 304) with a material tensile strength of at least 1400 N/mm². The wire is swaged in cold form during production to a rhombic cross section ensuring performance and maximum space utilisation.

With BaerCoil thread inserts you achieve a better thread connection in regard to wear resistance, thread abrasion, surface finish, corrosion- and heat resistance than with any other single screw connection. BaerCoil inserts can give material savings of up to 30%, resulting in reduced space, weight and costs. BaerCoil is typically used for thread repair and thread reinforcement.
Download the technical information here.


Additional Information:

Item Code: C01C02

Delivery Time: EX STOCK

Yes! I am interested

View PDF
Save time! Get the Best Deal

*Your information is safe with us.

Stainless Steel Material Compositions AISI 302hq 304 and 316

REQUEST CALLBACK

Ask for Price

Product Price: Ask Latest Price

Product Details:

Minimum Order Quantity100 Piece
Material GradeAISI 302HQ
MaterialSTAINLESS STEEL
Item CodeB2
Corrosion ResistanceGOOD

We hold expertise in providing superior quality Stainless Steel Material Compositions AISI 302hq 304 and 316. These products are expertly manufactured keeping in mind with quality norms using top grade material, under the keen observation of experienced professionals. The given products are accessible in different specifications as per the variegated needs of customers. Our esteemed clients can avail these products from us at reasonable rates.

Features:

  • Sturdy construction
  • Reliable performance
  • Dimensional accuracy

Yes! I am interested

View PDF

Corrosion Analysis of Fasteners

REQUEST CALLBACK
  • Corrosion Analysis of Fasteners
  • Corrosion Analysis of Fasteners
  • Corrosion Analysis of Fasteners

Ask for Price

Product Price: Ask Latest Price

Product Details:

Metal To Be AnalysedSTEEL
Product TypeFASTENER
Testing TypeSALT SPRAY TEST

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 each is available in hundreds of alloys or grades with a wide variety of attributes.

Initial cost of a stainless steel component is generally higher than carbon steel though not always. Secondary processes, such as heat treating or plating, often add to the cost of carbon steel parts when they may not be incurred with stainless steel.
Cost is meaningless without consideration of value. The ‘value’ of a fastener that provides maximum quality may offset any associated cost increase. Designers must weigh cost, benefit, and risk when choosing the appropriate fastener material.

Though carbon and stainless steel are both ferrous metals, their response to corrosive attack is much different. By definition stainless steel must contain at least 10.5% chromium. When exposed to oxygen this alloying element creates a layer of chromium oxide at the surface that quickly stops growing thus becoming ‘passive’. This passive layer is continuous, uniform in thickness, insoluble, and nonporous. The passive layer prevents contact between oxygen in the environment and base metal and will self heal if scratched or abraded as long as oxygen remains available.

Rust occurs in iron and iron alloys such as steel. Rust is a layer of iron oxide created at the surface of a part when exposed to oxygen in the presence of moisture. This layer of iron oxide remains active and continues to convert iron to iron oxide as the outer layers lose integrity and fall away exposing new metal.

Download the Guide to learn more.


Yes! I am interested

View PDF

Blind Rivet Hole Size Consideration

REQUEST CALLBACK

Ask for Price

Product Price: Ask Latest Price

Product Details:

Minimum Order Quantity25 Piece
Size2.4 TO 6.4MM
TechniqueSETTING HOLE

PROPER HOLE CONDITIONS FOR BLIND RIVETING

Work piece hole conditions can affect the performance of a blind rivet. Many times, blind rivet users have a problem with their blind rivets setting properly. In many cases, it is not the blind that is causing their problem, but instead it is the condition of the hole in their work piece that is causing the problem. 
Download the Guide to know more.

Yes! I am interested

View PDF
Save time! Get the Best Deal

*Your information is safe with us.

Tap Drill Chart

REQUEST CALLBACK

Ask for Price

Product Price: Ask Latest Price

Product Details:

MaterialHIGH SPEED STEEL
Usage/ApplicationTHREADING TOOL
BrandBAER

The attached document will help you selcet the correct hole size for your taps.

Yes! I am interested

View PDF
X