Blind rivets and blind rivet nuts
Blind rivets and blind rivet nuts
Blind rivets
The blind rivet consists of a hollow rivet sleeve which is mounted on a metal mandrel. The processing of blind rivets is very easy because they are only set from one side. For this purpose, the rivet is inserted into a drilled or punched hole. The rivet mandrel is torn off at a predetermined breaking point by using a special tool. The rivet mandrel deforms the rivet sleeve on the back (blind side), creating a closing head. As soon as the parts to be riveted are connected, the mandrel breaks off at a defined point. With most blind rivets, the rivet mandrel head remains in the closing head after setting, but no longer fulfills any function in the connection.
Blind rivet nuts
Blind rivet nuts attach a metric thread to a sheet metal. They are sleeves that have an internal thread on one side and a collar on the other. Blind rivet nuts are available with a flat head, countersunk head, small countersunk head or external hexagon. They are available in an open or closed design and with or without knurling. The blind rivet nut makes it possible to introduce a desired nut thread into thin or low-strength components. In addition, it is particularly suitable for embedding threads in hollow profiles or other components that are not accessible from both sides, as well as in components that are already surface-coated. In addition to the actual effect of embedding the nut thread, the blind rivet nut can also be used for riveting.
Standard blind rivets, multi-purpose blind rivets, cup blind rivets, expanding blind rivets, press-tab blind rivets, high-strength rivets and heavy-duty blind rivets.
blind rivet nuts
Rivets are produced on our cold forming presses using the double-pressure process.
Blind rivet nuts: In principle, a blind rivet nut is a threaded hollow rivet. In principle, processing is the same as with normal blind rivets, except that the deformation is not carried out with a rivet mandrel, but the setting tool has a threaded attachment onto which the blind rivet nut is screwed. The blind rivet nut is then inserted into the prefabricated hole with the tool and deformed by pulling the threaded attachment.
Blind rivets:
All common sizes, drives, materials and surfaces from a single source. Special sizes and shapes as screws according to drawings or samples – also from us.
Blind Rivet Nuts:
- Quick and easy assembly with component accessibility from one side
- Placement of high-quality threads in thin and soft materials (steel, aluminum, magnesium, plastics, etc.)
- No thermal influences on the components and therefore no thermal distortion or damage to the surfaces of the components
- No post-processing required
- Very high flexibility of the manufacturing process
- Low investments for assembly equipment
- Versatile in use – also for hybrid connections and soft materials
- Creation of watertight and gas-tight connections
- No emission of heat, smoke and welding gases to the environment, and therefore no impairment (hazard) to people and the environment
Wherever materials have to be joined and/or a friction-locked thread is to be introduced: Mechanical engineering, automotive industry, electrical industry, telecommunications industry, construction industry, components, etc.
Blind rivet
Specifications
a. materials
Aluminum, steel, stainless steel, A4 stainless steel, case-hardened and heat-treated steel, brass and other non-ferrous metals
b. strength classes
3.6 – 12.9
c. head shapes
Flat head, countersunk head, large flat head, extra large flat head
d. Dimensions
1mm – 100mm x 1000mm length
e. Additional edits
End Finishing: Shaft slotting, spigot, spigot, tenon or other as desired. Machining post-processing.
f. Surfaces
All common: galvanized (CrVI-free, RoHS-compliant), nickel-plated, chromated, Delta-Tone and Seal, Dacromet, Geomet etc. according to the specifications of the automotive and electrical industry (VDA standard)
g. coatings
Thread locks, thread sealants (e.g. Tuflok, ScotchGrip, Precote, Loctite, wax coatings)
h. heat treatment
All common: tempering, carbonitriding, tempering, tempering, case hardening.
i. batch sizes
from 30,000 pieces (smaller quantities after consultation)
j. documentations
The following are available for initial sampling: Standard EMPB as cover sheet sampling; VDA Volume 2 Level 0-3; PPAP levels 1-3.
Blind rivet nuts
head shapes
Flat head, countersunk head and small countersunk head
shaft shapes
Round shank, knurled round shank, part hexagon and hexagon
shaft end
Closed or open
materials
Galvanized steel, aluminum, stainless steel, etc.
processing
Manually using a setting tool, semi-automatic solutions, fully automatic and monitored processing.
