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J C Gupta & Sons

J C Gupta & Sons

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Unified Series Fasteners

American Standard Unified Threads

A number of Aerospace components have American Standard Threads as standard fitments. To enable this supply chain to function effectively, we have developed and maintain ready stock of  a number of ASME/ANSI standard unified thread components.

Available in Stainless Steel AISI-304 and AISI-316 grades.

SS Machine Screw UNC Series Hex Screws

ASME-B18.2.1 Hex Screw SS-304 A2 B4uA21 – Download Datasheet
ASME-B18.2.1 Hex Screw SS-316 A4 B6uA21 – Download Datasheet

SS Machine Screw UNC and UNF Series Allen Cap SHCS

ASME-B18.3-1 UNC SHCS SS-304 A2 B4uA01 – Download Datasheet
ASME-B18.3-1 UNC SHCS SS-316 A4 B6uA01 – Download Datasheet
ASME-B18.3-1 UNF SHCS SS-304 A2 B4vA01 – Download Datasheet

ASME-B18.3-1 UNF SHCS SS-316 A4 B6vA01 – Download Datasheet

 

ASME-B18.3-1 UNC SHCS SS-304 A2 Black U4uA01 – Download Datasheet

SS Machine Screw UNC and UNF Series CSK Phillips

ASME-B18.6.3 UNC CSK Phillips SS-304 A2 B4uB05 – Download Datasheet
ASME-B18.6.3 UNC CSK Phillips SS-316 A4 B6uB05 – Download Datasheet
ASME-B18.6.3 UNF CSK Phillips SS-304 A2 B4vB05 – Download Datasheet
ASME-B18.6.3 UNF CSK Phillips SS-316 A4 B6vB05 – Download Datasheet
ASME-B18.6.3 100 Deg UNC CSK Phillips SS-304 A2 B4uB05-100 – Download Datasheet

SS Machine Screw UNC and UNF Series Allen CSK

ASME-B18.3.2 UNC Allen CSK SS-304 A2 B4uA05 – Download Datasheet
ASME-B18.3.2 UNF Allen CSK SS-304 A2 B4vA05 – Download Datasheet

SS Machine Screws UNC and UNF Series Pan Phillip

ASME-B18.6.3 UNC Pan Phillips SS-304 A2 B4uB04 – Download Datasheet
ASME-B18.6.3 UNC Pan Phillips SS-316 A4 B6uB04 – Download Datasheet
ASME-B18.6.3 UNF Pan Phillips SS-304 A2 B4vB04 – Download Datasheet

SS Machine Screws UNC and UNF Series Button Head Cap Screws BHCS

ASME-B18.3.3 UNC Allen BHCS SS-304 A2 B4uA04 – Download Datasheet
ASME-B18.3.3 UNC Allen BHCS SS-316 A4 B6uA04 – Download Datasheet
ASME-B18.3.3 UNF Allen BHCS SS-304 A2 B4vA04 – Download Datasheet

SS Machine Screws UNC and UNF Series Grub Screws

ASME-B18.3.4 UNC Grub Screw KCP SS-304 A2 B4uA07 – Download Datasheet

ASME-B18.3.4 UNF Grub Screw KCP SS-304 A2 B4vA07 – Download Datasheet

SS UNC Series Carriage Bolts

ASME-B18.5 Carriage Bolt UNC SS-304 A2 B4uA20- Download Datasheet


SS UNC and UNF Series Hex Nuts

ASME B 18.2.2 Hex Nut UNC SS-304 A2 B4uC31 – Download Datasheet
ASME B 18.2.2 Hex Nut UNC SS-316 A4 B6uC31 – Download Datasheet
ASME B 18.2.2 Hex Nut UNF SS-304 A2 B4vC31 – Download Datasheet
ASME B 18.2.2 Hex Nut UNF SS-316 A4 B6vC31 – Download Datasheet

SS UNC Series Half Nuts

ASME B18.2.2 UNC Half Nut SS-304 A2 B4uC35 – Download Datasheet
ASME B18.2.2 UNC Half Nut SS-316 A4 B6uC35 – Download Datasheet

SS UNC Series Nylock Nuts

ASME B 18.16.6 Nylock Nut UNC SS-304 A2 B4uC33 – Download Datasheet
ASME B 18.16.6 Nylock Nut UNC SS-316 A4 B6uC33 – Download Datasheet

SS UNC Series Keps Nuts or K-Lock Nuts

K-Lock Nut SS-304 A2 UNC B4uC22 – Download Datasheet


Unified Series Spacers and Standoffs

Female-Female UNC Hex Spacer SS-303 B3uC11 – Download Datasheet
Female-Female UNC Hex Spacer SS-316 A4 B6uC11 – Download Datasheet

Male-Female UNC Hex Standoff SS-303 B3uC12 – Download Datasheet
Male-Female UNC Hex Standoff SS-316 A4 B6uC12 – Download Datasheet

Unified Series Self Clinching Blind Standoffs

Blind Standoffs MS Zinc Coated Unified JC-BSO A2uC13 – Download Product Datasheet
Blind Standoffs Stainless Steel SS-304 Unified JC-BSOS B4uC13 – Download Product Datasheet
Blind Standoffs Aluminium Unified JC-BSOA E5uC13: Download Product Datasheet

Unified Series Self Clinching Thru Hole Standoffs

Through Hole Standoff MS Zinc Coated Unified JC-SO A2uC14: Download Product Datasheet
Through Hole Standoff Stainless Steel SS-304 Unified JC-SOS
B4uC14: Download Product Datasheet
Through Hole Standoff Aluminium Unified JC-SOA E5uC14: Download Product Datasheet

Unified Series Self Clinching Studs

Clinch Stud FH Mild Steel Zinc Plated UNC/UNF JC-FH A2uE15:  Download Product Datasheet
Clinch Stud FHS Stainless Steel AISI 304 UNC/UNF JC-FHS B4uE15: Download Product Datasheet

Unified Series Self Clinching Blind Fastener

Self Clinching Blind Fastener Stainless Steel A2 Type BS UNC/UNF B4uC72 – Download Product Datasheet

Unified Series Self Clinching Nuts

Clinch Nuts Mild Steel Zinc Plated Unified Coarse JC-S A2uC39 – Download Product Datasheet
Clinch Nuts Mild Steel Zinc Plated Unified Fine JC-S A2vC39 – Download Product Datasheet
Clinch Nuts Stainless Steel SS-304 Unified Coarse JC-CLS B4uC39 – Download Product Datasheet
Clinch Nuts Stainless Steel SS-304 Unified Fine JC-CLS B4vC39 – Download Product Datasheet
Clinch Nuts Stainless Steel SPL for Stainless Steel Sheets Unified JC-SP B7uC39 – Download Product Datasheet

SS Machine Screws UNC Series Captive Screws

Captive Pan Phillips Machine Screws UNC SS-304 A2 B4uK31 – Download Datasheet

Unified Series Brass Moulding Inserts

Moulding Inserts Brass Unified UNC UNF D4uC05 – Download Catalogue


Unified Series Blind Nuts

Blind Nut LF UNC MS-ZN A2uC41G – Download Datasheet
Blind Nut LF UNC SS-304 A3 B4uC41 – Download Datasheet

Blind Nut Semi-Hex LF UNC MS-ZN A2uC43 – Download Datasheet

Blind Nut RCSK UNC MS-ZN A2uC42 – Download Datasheet
Blind Nut RCSK UNC SS-304 A2 B4uC42 – Download Datasheet

 


JCSlim – Low Profile Screws

Our “JCSlim” Ultra-Low Profile screw range is another valuable offering available with unified Threads. Ultra-thin head screws are up to 77% thinner than conventional screw heads which makes possible flat external surface and contributes low-profile design and weight saving.

Go to the JCSlim Screws page for more information.

JCSlim Low Profile Screws UNC UNF SS-304 A2 B4uA35 – Download Datasheet


Wire Thread Inserts

BaerCoil® thread inserts are made from austenitic chromium-nickel steel (stainless steel AISI 304 with a material tensile strength of at least 1400 N/mm²). In production the wire is swaged in cold-form to a rhombic cross-section, which ensures performance and maximum space utilization. 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 – Download Technical Data

Inch series range:

  • UNC: 2-56 to 1″
  • BSW: 3/16 to 1″
  • UNF: 6-40 to 1″
  • BSP and NPT available on request

Fine pitch inserts available

BAERCOIL Wire Thread Inserts SS-304 A2 L1C01 – Download Catalogue

BAERCOIL Thread Repair Kit L5C10 – Download Catalogue

BaerCoil Thread Inserts are also available in Screw Grip type, which have one or more polygon formed windings which have a clamping effect on the flanks of the inserted screw. This forms an elastic and flexible frictional connection. Due to this screw clamping or screw locking effect, it is recommended to use screws with a higher property class (from 8.8 onward) with these inserts.

BAERCOIL Screw Grip Thread Inserts SS-304 A2 L1C02 – Download Catalogue


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.

Baerfix – Download Technical Data

BAERFIX Slotted Inserts C04 – Download Catalogue


BAER Threading Tools

Our range of Threading Tools including Taps, Round Dies, etc are also available in Unified and other inch series threads. A tap cuts threads on the inside of a hole, creating a female surface which functions like a nut, to accept a machine screw or bolt.

Taps can also be used to restore an internal thread that has been damaged or to cut a larger thread in the case of severe damage.
BAER Threading tools from Germany are among the highest quality available

Go to the BAER Threading Tools page.


Washers

We have a large range of Washers including Plain Washers, Locking Washers, etc suitable for use with unified fasteners available in wide range of materials.

Go to the Washers page.

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