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HALF HEXAGONAL BODY RIVET NUT

Half Hexagon Body Rivet Nut — Overview

The Half Hexagon Body Rivet Nut is a threaded blind insert with a partially hexagonal shank. When seated into a matching pre-drilled hole, the hexagonal profile mechanically prevents the insert from rotating during bolt tightening or under vibration — making it the preferred choice over round-body rivet nuts wherever spin-out is a concern.

Available at Excel Trading Corporation, Bengaluru in Mild Steel (MS) and Stainless Steel (SS-304 / SS-316), with Open End and Closed End options, and Large Flange or Reduced Head configurations — supplied as per Specification.

Advantages

  • Bullet Icon High turning resistance
  • Bullet Icon Screw length can be varied
  • Bullet Icon High Clamp Resistance
  • Bullet Icon Application for area where high strength of turning is required

Style

  • Bullet Icon Open End
  • Bullet Icon Close End

Flange

  • Bullet Icon Large
  • Bullet Icon Reduced
Hexagon Half Body Rivet Nut

Available In

Steel

Steel

Stainless Steel

Stainless Steel

Open End vs Closed End

Open End Rivet Nut

The open end style has a fully open threaded bore, allowing the bolt or stud to pass completely through the insert with no depth restriction. Screw engagement length can be freely varied. This is the standard choice for general fabrication, automotive assemblies, and structural work.

Closed End Rivet Nut

The closed end style has a sealed base that blocks fluids, gases, dust, and contaminants from passing through the hole. Essential for waterproofing, outdoor installations, food processing equipment, and any application where ingress through the fastening hole must be prevented.

Large Flange vs Reduced Head

Large Flange

The large flange spreads the clamp load over a wider surface area, reinforcing the hole and significantly improving pull-through resistance. Ideal for thin sheet materials and load-bearing applications where pull-out strength is critical.

Reduced Head

The reduced (small) flange sits close to the surface, making it suitable for space-constrained assemblies. It can be installed into pre-painted or pre-coated surfaces without additional countersinking or surface preparation.

Material Options — MS and SS

Mild Steel (MS)

A cost-effective option for general-purpose indoor applications. Typically supplied with zinc plating for standard corrosion protection. Commonly used in automotive, light engineering, and sheet metal fabrication.

Stainless Steel — SS-304 (A2) and SS-316 (A4)

SS-304 (A2 grade) offers excellent corrosion resistance for outdoor and mildly aggressive environments. SS-316 (A4 grade) provides maximum resistance to acids, chlorides, and coastal or marine conditions — the right choice for harsh, wet, or chemical-exposure environments.

Typical Applications

Half hexagon body rivet nuts are used across automotive and transport assemblies, electrical panel and enclosure manufacturing, HVAC ducting and sheet metal work, aerospace and defence components, industrial machinery repair, and marine or outdoor structural assemblies (SS grade). They are especially favoured in repair and servicing situations where access to the back face of the material is not possible.

Frequently Asked Questions

What is a half hexagon body rivet nut and when should I use it over round body?

A half hexagon body rivet nut has a shank that's part-round, part-hexagonal — the hexagonal section locks into a matching part-hex punched hole, mechanically preventing rotation during bolt tightening or under vibration. Choose it over round body whenever spin-out under torque is a concern; the hex profile gives much higher turning resistance than knurling alone, at a lower tooling cost than a full hex body.

What is the difference between half hex and full hex body rivet nuts?

Half hex rivet nuts have a hex profile on only part of the shank, requiring a smaller, less complex punched hole — a good middle ground between round body and full hex. Full hex rivet nuts are hexagonal along the entire shank, giving the maximum spin-out resistance available in any rivet nut style, at the cost of a larger hex hole and higher tooling investment. Choose half hex for most anti-rotation needs; choose full hex for the highest-torque, highest-vibration applications.

Open end or closed end — which should I choose?

Open end allows the bolt to pass fully through, so screw length can vary — the standard choice for general fabrication, automotive and structural work. Closed end has a sealed base that blocks water, dust and contaminants from entering through the hole, essential for outdoor, marine or food-processing environments. If sealing isn't required, open end is simpler and more versatile.

Should I choose large flange or reduced head?

Large flange spreads clamp load over a wider surface, improving pull-through resistance — ideal for thin sheet or load-bearing joints. Reduced head sits closer to the surface for tight assemblies and can be installed into pre-painted or pre-coated panels without extra surface prep. Choose based on available space and whether pull-through resistance is a concern.

Do you supply half hexagon rivet nuts in bulk across India?

Yes. Excel Trading Corporation stocks half hexagon body rivet nuts in Mild Steel and Stainless Steel SS-304/SS-316 at our Bengaluru store. We supply automotive, electrical, HVAC, aerospace and marine fabricators across Karnataka and India-wide. Call +91-9448239476 or email info@exceltrading.in for pricing and bulk availability.