Henrob self-piercing rivets and dies
We work with our customers to find the best rivet and die combinations to solve challenges in joining various automotive applications, including pillars, closures, and body frames, just to name a few.
Complete rivet manufacturing controlled in-house from forging to packaging
A-Rivet
Industry applications: automotive industry
Application materials: thinner aluminum alloys
Diameter: 3mm / 5mm
Lengths: 3mm: 3.25mm to 4.5mm / 5mm: 4.5mm to 7mm
BG-Rivet
Industry applications: automotive, heavy truck and general industry
Application materials: mixed material using ultra-high strength steels with aluminum sheet, casting, and extrusions
Diameter: 5mm
Lengths: 4mm to 7mm
C-Rivet
Industry applications: automotive, heavy truck and general industry
Application materials: all-aluminum and mixed material including milder steels up to some grades of high-strength steel
Diameter: 3mm / 5mm
Lengths: 3mm: 3.5mm to 4mm / 5mm: 4mm to 6.5mm
HG-Rivet
Industry applications: General industrial applications
Application materials: all-steel and mixed material including milder steels up to some grades of high-strength steel
Diameter(s): 5mm
Lengths: 5mm to 8mm
J-Rivet
Industry applications: automotive, heavy truck and general industrial applications
Application materials: thinner aluminum alloys
Size(s): 3mm
Lengths: 5mm to 6mm
K-Rivet
Industry applications: automotive, heavy truck and general industrial applications
Application materials: all-aluminum and mixed material including milder steels up to some grades of high-strength steel
Diameter: 5mm
Lengths: 5mm to 14mm
P-Rivet
Industry applications: automotive, heavy truck and general industrial applications
Application materials: all-steel and mixed material including milder steels up to some grades of high-strength steel
Diameter: 3mm / 5mm
Lengths: 3mm: 4mm to 8mm / 5mm: 5mm to 14mm
PG-Rivet
Industry applications: general industrial applications
Application materials: all-steel and mixed material including milder steels up to high-strength steel
Diameter(s): 5mm
Lengths: 5mm to 8mm
R-Rivet
Industry applications: general industrial applications
Application materials: all-steel and mixed material including milder steels up to some grades of high-strength steel
Diameter: 3mm
Lengths: 3mm: 5mm to 8mm
T-Rivet
Industry applications: automotive
Application materials: aluminum alloys with higher-yield, lower ductility
Diameter: 5mm
Lengths: 6.5mm to 14mm
Self-piercing stud
Industry applications: automotive
Application materials: aluminum alloys with high ductility
Diameter: 5mm
Lengths: 7mm to 14mm
Rivet head styles
Head styles
- Countersunk: head side of the joint is flush with top material surface
- Flat, Pan, Dome: Provide good strength. especially in plastics or thin sheet metals; allow good head seating, especially when riveting thick or very hard materials; accentuate aesthetics of a riveted joint
- Not all head styles are available on all rivets -- please contact our experts for more information
Rivet coatings
- Rivet coating is a fundamental part of the riveting process and needs careful consideration before a selection is made. We make coatings that are qualified by our customers.
- Standard coatings are used in the majority of applications to protect self-piercing rivets when applied to steel, aluminum or other products. Mechanical plating provides a galvanic barrier between the steel rivet and aluminum panel preventing corrosion between the two materials. Coating types are typically zinc/tin or zinc/tin/aluminum (AlmacTM).
- New coatings, compatible with an increasing number of applications and environmental conditions, are being researched as part of customer-specified programs.
Materials for riveting
- Standard Rivet Material: Special grades of steel wire - forged, hardened and tempered to provide optimum joint properties in the full range of application materials.
- Special Rivet Materials:
- Austenitic stainless steel - used for joining ductile stainless steel sheets.
- Martensitic stainless steel - for tougher materials that cannot be joined with austenitic stainless steel rivets.
- Rivet Hardness: Rivets are produced in a range of hardness levels to match the piercing requirement for different material grades. We work closely with our customers to establish the correct rivet hardness and geometry for the application.
Packaging
- Loose rivets are supplied in flexible plastic packaging either in bottles that fit our loose rivet feeder or in bags. All batches are bar-coded and fully traceable, and there are poka-yoke options for bottles to ensure the wrong rivets are not used in your process.
- Cassettes are used with our tape feed systems for manual applications where maximum mobility or rotation of the rivet setter is required. Cassettes hold from 200 to 800 rivets.
- Spools are used with our tape feed systems that hold from 4,000 to 10,000 rivets, depending on the size of the rivet, and are used on manual, automated or robotic tools. Re-usable plastic spools are available for applications where a return loop permits economic recycling and refill. There is a poka-yoke option where the center hub is configured with a mechanical key to prevent incorrect rivets from being loaded to a tool.
Self-pierce riveting die design and manufacturing
DEHG-Die
Style: Dished
Rivet diameter: 3 or 5 mm
Range size: Limited
Notes: Large radius corners, useful for low ductility materials; Use care - high forces possible
DC-Die
Style: Flat bottom, large radius
Rivet diameter: 5 mm
Range size: Limited
Notes: Large radius corners and shallow depths, useful for low ductility materials; Use care – high forces possible
DG-Die
Style: Flat bottom
Rivet diameter: 3 or 5 mm
Range size: Extensive
Notes: Flat bottom style, very common; widely used across many industries and materials
DP-Die
Style: Domed pip
Rivet diameter: 3 or 5 mm
Range size: Extensive
Notes: Domed pip, widely used in automotive industry
DR-Die
Style: Deeper pip
Rivet diameter: 3 or 5 mm
Range size: Limited
Notes: Pip style with increased depth, used in automotive and general industry
DY-Die
Style: Small pip
Rivet diameter: 3 mm
Range size: Very limited
Notes: Narrow diameter, small pip useful for very thin material gauges
DT-Die
Style: Moderate pip
Rivet diameter: 3 mm
Range size: Very limited
Notes: Small pip, useful for thin material gauges
DZ-Die
Style: Pip
Rivet diameter: 3 or 5 mm
Range size: Moderate
Notes: Most prominent pip style, promotes rivet flare; widely used in automotive industry
Die "specials" are also available for further customization (not available for all profile ranges).
