Blind Rivets
Allfast is emerging as a world leader in blind rivet design, manufacture and delivery including Allmax/Supermax line, NAS1919/1921, A Codes, AB Codes and others. Built upon nearly fifty years of experience and approvals at all major OEM’s, our products can be found on nearly every platform that flies. Utilizing continuous improvement and lean manufacturing, Allfast delivers blind rivets with consistent performance, exceptional quality and on time delivery. Allfast can produce and deliver the right blind rivet for your unique applications.
Bulbing Type
Allfast offers four unique bulbing type rivet families. Each designed with a bulbing feature to bear against the blind side of work. Well suited for thin sheet applications.
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Allmax
The Allmax rivet is a shear ring type fastener that provides consistent blind side bulbing.
Key Features:
- Bulbing, Shear Ring Type Fastener
- Mechanical, Inspectable Lock
- Available in Nominal and Oversize diameters
- Multiple material and finish options
- Multiple head styles
- Uses simplified installation tooling
The Allmax four-piece fastener, consisting of a pin, sleeve, lock collar and washer, provides dependable installations. The Allmax performs well in all metallic structures including thin sheet applications.
The shear ring design of the pin creates a bulbing of the sleeve that bears against the blind side of the joint and adjusts for the thickness of the material being joined. The collar provides an inspectable, mechanical lock ensuring positive installation. The washer allows the fastener to be installed with simplified tooling across multiple diameter and head style parts.
The Allmax rivet is available in 4, 5 and 6 nominal diameters, as well as 4, 5, and 6 oversize (1/64) diameters. This fastener is available in 4 sleeve/pin material combinations: Aluminum/Steel, Aluminum/Cres, Monel/Cres and Cres/Cres. This fastener is supplied with multiple sleeve finish options. The Allmax is available in multiple head styles: Universal, 100 degree Flush, 100 degree Reduced Flush and Unisink.
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Bulb Rivet
The bulb rivet is a shear ring type fastener that provides consistent blind side bulbing.
Key Features:
- Bulbing, Shear Ring Type Fastener
- Mechanical, Inspectable Lock
- Available in Oversize diameters
- Multiple material and finish options
- Multiple head styles
- Uses double action type installation tooling
The Bulb Rivet three-piece fastener, consisting of a pin, sleeve, and lock collar, provides dependable installations. The Bulb Rivet performs well in all metallic structures including thin sheet applications.
The shear ring design of the pin creates a bulbing of the sleeve that bears against the blind side of the joint and adjusts for the thickness of the material being joined. The collar provides an inspectable, mechanical lock ensuring positive installation. This fastener must be installed with double action tooling.
The Bulb Rivet is available in 4, 5 and 6 oversize (1/64â€) diameters. This fastener is available in 4 sleeve/pin material combinations: Aluminum/Steel, Aluminum/Cres, Monel/Cres and Cres/Cres. This fastener is supplied with multiple sleeve finish options. The Bulb Rivet is available in Universal and 100 degree Flush head styles.
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Supermax
The Supermax rivet is composed of five sub components and provides a consistent bulb-type installation with excellent sheet take up performance.
Key Features:
- Bulbing, Fastener
- Mechanical, Inspectable Lock
- Available in 1/64 Oversize diameters
- Uses simplified installation tooling
The Supermax four piece fastener, consisting of a pin, sleeve, lock collar, bulb former and washer, provides dependable installations. The Supermax performs well in all metallic structures.
The design of the pin and bulb former creates a bulbing of the sleeve that bears against the blind side of the joint and adjusts for the thickness of the material being joined. The bulb former design allows for load to be applied to the blind side of the joint throughout the installation cycle, removing gaps and providing excellent sheet take up properties. This fastener is preferred for applications where gapping between sheets must be removed. The collar provides an inspectable, mechanical lock ensuring positive installation. The washer allows the fastener to be installed with simplified tooling across multiple diameter and head style parts.
The Supermax rivet is available in 4, 5 and 6 oversize (1/64) diameters. The Supermax is available in Universal and 100 degree Flush head styles.
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AF1900
The AF1900 is a general purpose bulbed blind rivet. The AF1900 performs well in all metallic structures.
Key Features:
- Bulbing, Fastener
- Large blind side footprint
- Mechanical, Inspectable Lock
- Drive anvil option for improved tool life
- Uses simplified installation tooling
The AF1919, protruding head, and AF1921, 100 degree flush head, are general purpose bulbed blind rivets. The rivet assembly is comprised of a sleeve, pin, and lock ring. The rivet assembly is available with a drive anvil washer for use with blunt nose installation tooling.
The AF1919 and AF1921 rivets are used in general purpose metallic and non-metallic applications. These rivets may be installed in thin and thick sheet applications where only one side of the work may be accessible. The AF1919 and AF1921 rivets are available in 1/8, 5/32 and 3/16 nominal diameters. These rivets provide excellent hole filling and a generous blind side foot print.
The AF1919 and AF1921 rivets are available in three sleeve/pin material combinations: Aluminum/Aluminum, Monel/Cres, and Cres/Cres.
The rivet is installed using a single action pneumatic-hydraulic installation tool. The following describes the installation sequence. The rivet is inserted into the work piece. The installation tool engages the spindle of the rivet and pulls. Forces created by pulling the spindle are reacted through the nose of the tool to the collar and rivet sleeve. A detail on the spindle causes the sleeve to expand, filling the hole as it pulls through. Continued pulling causes the spindle head to contact the terminal end of the sleeve forming the blind side bulb, which bears against the work. Once the lock grooves on the spindle and the sleeve are properly aligned, the lock collar is driven to occupy this volume. The spindle is now mechanically locked in place and can no longer translate causing the pulling load to increase. A notch located between the pull portion and the rivet portion of the spindle causes the two to separate at this load. The rivet installation is complete.
The AF1919 and AF1921 rivets are commercially available as NAS1919 and NAS1921 respectively. The procurement specification for these rivets is NAS1900.
Hole Filling Type
Multi component blind rivets available in various material combinations. Provide excellent hole filling properties.
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Wire Draw & Olympic Lok Wire Draw Max
A blind rivet composed of three sub components and provides excellent hole filling installation.
Key Features:
- Good sheet take-up
- Excellent hole fill characteristics
- Various material combinations
- Inspectable Lock
- Simplified Tooling
The Wire Draw and Olympic Lok are multiple piece fasteners, consisting of a pin, sleeve, lock collar and optional washer, provides dependable installations. The Wire Draw and Olympic Lok fasteners perform well in all metallic structures requiring excellent hole filling characteristics.
The design of the pin when drawn into the sleeve expands to draw the sheets tight. The pin further expands the sleeve filling the hole in the structure. The collar provides an inspectable, mechanical lock ensuring positive installation. The optional washer allows the fastener to be installed with simplified tooling across multiple diameter and head style parts.
The Wire Draw and Olympic Lok rivets are available in 4, 5, 6 and 8 nominal diameters. These fasteners are available in 3 sleeve/pin material combinations: Aluminum/Aluminum, Monel/Cres and Cres/Cres. This fastener is supplied with multiple sleeve finish options. The Wire Draw and Olympic Lok are available in Universal, 100 degree and Flush 100 degree reduced Flush headstyles.
The wire draw configuration of this rivet requires double action installation tooling. This configuration is commercially available as NAS1398 and NAS1399 “Dash†code.
The Olympic-Lok configuration of this rivet is installed with single action installation tooling. This configuration is commercially available as NAS1398 and NAS1399 “A†code.
The Wire Draw Max configuration of this rivet supplied with a washer and is installed with simplified single action installation tooling. This configuration is commercially available as NAS1398 and NAS1399 “AB†code.
The Wire Draw, Olympic-Lok and Wire Draw Max rivets all meet the requirements of NAS1400.
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Olympic Bulb-Lok
The Olympic Bulb-Lok is a blind rivet composed of three sub components and provides excellent hole filling installation.
Key Features:
- Good sheet take-up
- Excellent hole fill characteristics
- Various material combinations
- Inspectable Lock
- Simplified Tooling
The Olympic Bulb-Lok 3 piece fastener, consisting of a pin, sleeve, and lock collar, provides dependable installations. The Olympic Lok performs well in all metallic structures requiring excellent hole filling characteristics.
The design of the pin when drawn into the sleeve expands to draw the sheets tight. The pin further expands the sleeve filling the hole in the structure. The collar provides an inspectable, mechanical lock ensuring positive installation. The optional washer allows the fastener to be installed with simplified tooling across multiple diameter and head style parts.
The Olympic Bulb-Lok rivet is available in 4, 5, 6 and 8 oversize (1/64â€) diamters. This fastener is available in 3 sleeve/pin material combinations: Aluminum/Aluminum, Monel/Cres and Cres/Cres. This fastener is supplied with multiple sleeve finish options. The Olympic Bulb-Lok is available in multiple head styles: Universal, 100 degree Flush, 100 degree Reduced Flush.
The Olympic Bulb-Lok rivets are commercially available as NAS1768 and NAS1769 part standards and meet all requirements of the NAS1740 procurement specification.
Non Structural
Blind rivets composed of two sub components. Provides simple, economical solution for joining non-structural assemblies.
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Pull Thru and Self Plugging Rivets
A blind rivet composed of two components used for non-structural applications and nut plate attachment.
Key Features:
- Alternative fastener for nutplate attachment
- Economical Installation
- Various material combinations
- Simplified Tooling
The pull thru fastener, consisting of a pin and sleeve provides dependable installations.
The pin is drawn through the sleeve, expanding the sleeve to join non-structural components in a simple dependable manner. This fastener is as an alternative to solid rivets to provide quick and economical installations.
The Pull thru rivet is available in 4, 5, 6 and 8 nominal diameters. This fastener is available in aluminum, monel, steel and cres sleeve materials. This fastener is supplied with multiple sleeve finish options. The pull thru is available in Universal, 100 degree Flush and 100 degree reduced flush headstyles.
The Self Plugging rivet, consisting of a pin and sleeve provides dependable installations.
The pin is drawn into the sleeve, expanding the sleeve and creating a interference fit to join non-structural components in a simple dependable manner. The pull portion of the pin separates and Is discarded. This fastener is as an alternative to solid rivets to provide quick and economical installations.
The Self Plugging rivet is available in 4, 5, 6 and 8 nominal diameters. This fastener is available in aluminum and monel, pin/sleeve combinations. This fastener is supplied with multiple sleeve finish options. The Self Plugging rivet is available in Universal, and 100 degree Flush headstyles.