Retaining Bolts
005.60.932
Available immediately
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€34.50*
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100
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from 100 |
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005.60.840
Available immediately
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€34.50*
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100
PCS
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from 100 |
Available immediately
005.60.931
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€63.30*
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100
PCS
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from 100 |
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005.60.836
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€33.40*
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100
PCS
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from 100 |
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005.60.842
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€82.80*
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100
PCS
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from 100 |
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005.60.933
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€35.10*
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100
PCS
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from 100 |
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005.60.930
Available in 75 days
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€57.50*
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100
PCS
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from 100 |
Available in 75 days
005.60.838
Available in 75 days
Available in 75 days
Retaining Bolts
A retaining bolt for threaded blocks secures these blocks and components in thin-walled mounting plates with both form-fit and force-fit connections. Depending on the design — with a cross hole or as a rivet-type retaining bolt — it creates a permanently secure connection that reliably absorbs shear forces, impacts, and vibrations.
Retaining bolts with cross holes allow additional mechanical security, for example with cotter pins or safety wires. Rivet-type retaining bolts, on the other hand, provide space-saving, form-fit holding without the need for extensive post-processing.
Thanks to their high clamping force and robust installation properties, retaining bolts are particularly suitable for demanding applications in automotive, mechanical engineering, or electrical engineering.
In ETTINGER’s B2B online shop, you will find high-quality retaining bolts for professional component fastening in various material grades and sizes. Order the desired type directly from stock — we supply your company quickly and reliably, even in large quantities.
Typical Applications of Retaining Bolts
Retaining bolts are used in numerous industrial applications, especially where thin-walled sheets or mounting plates need reliable reinforcement:
- Automotive: control units, housing assembly, vibration-loaded assemblies
- Mechanical engineering: form-fit fastening in mechanically stressed structures
- Electrical engineering & electronics manufacturing: PCB spacing, housing fixation, defined gap dimensions
- Vehicle construction & shipbuilding: applications requiring high corrosion resistance
Materials and Surface Finishes for Retaining Bolts
Choosing the right material and surface finish depends on several factors, including mechanical load, weight, and corrosion protection. Aluminum is favored for its low weight, while brass provides high strength and good electrical conductivity. Material and surface finish influence both durability and assembly performance.
Available materials:
Brass 2.0401: Extremely wear-resistant and highly machinable, ideal for automatic lathes and precision components. Electrical conductivity is moderate.
Aluminum 3.1655: Offers an excellent strength-to-weight ratio. Preferred for mobile applications and designs where low weight is critical.
Aluminum 3.3535 (lead-free): Compliant with RoHS and REACH regulations, providing an environmentally friendly solution without sacrificing strength. Resistant to seawater and weathering, ideal for ship and vehicle construction.
Available Dimensions of Hold-Down Pins
The dimensions of a retaining bolt largely determine mechanical strength, assembly gap, and installation quality. Threads, length, and mounting plate thickness must be precisely matched to avoid assembly errors and material fatigue.
ETTINGER offers a finely graded range of dimensions covering even the tightest tolerances:
| Thread 1 / Hole 1 | M3; M4 |
| Thread 2 / Hole 2 | Ø 2.0; Ø 2.2; Ø 2.8 mm |
| Mounting Plate Thickness | 0.8–1.0 mm; 1.3–1.6 mm; 2.0–2.3 mm |
| Total Length | 8 mm to 12 mm (e.g. 8.9; 10.9; 11.7 mm) |
| Thread 1 Length | 6 mm; 8 mm; 10 mm; 12 mm; 14 mm |
| AF / Outer Diameter | 5.5 mm; 6 mm |
The correct retaining bolt length — e.g., 10.5 mm or 11.7 mm, measured at the relevant shaft or threaded section — is especially critical in electronic housings for precise gap control. Incorrectly sized pins may cause unwanted contact or mechanical stress on PCBs.
Common widths across flats of 5.5 mm and 6 mm allow use of standard assembly tools and automated screw driving systems. Consider available installation space, bit fit, and the desired torque in your production environment.
Frequently Asked Questions About Retaining Bolts
What is the difference between a threaded bolt and a retaining bolt?
Threaded bolts are removable fasteners that work with a nut to join components in a form-fit
connection. Retaining bolts, however, are designed to remain permanently anchored in the
workpiece (e.g., by press-fitting or self-locking) and provide secure thread fastening or component
fixation.
When are rivet-type retaining bolts recommended?
Rivet-type retaining bolts are ideal for applications with limited installation space or where quick,
post-processing-free assembly is required.
Which hold-down pins are suitable for vibration-loaded applications?
Retaining bolts with cross holes allow additional securing and are ideal for applications subject to
high shear forces and vibrations.
Which surface finish protects against corrosion?
Nickel-plated retaining bolts (3 µm E1E) provide reliable protection against oxidation and chemical
exposure.
With many years of experience as a manufacturer and supplier of industrial fastening solutions,
ETTINGER helps companies maintain production quality and reduce scrap. High stock availability also
enables reliable just-in-time supply chains. Special customized solutions are available for specific
requirements.
Quality from ETTINGER – your requirements are our mission
For more than 60 years we have been supplying fasteners and electromechanical components in accordance with widely recognized standards. We rely on qualified employees, strict incoming goods inspections and innovative technologies to ensure that we consistently meet our high quality standards for battery and soldering technology as well as other electromechanical accessories.
At ETTINGER, we prefer to manufacture and source our parts in Germany. Thanks to long-standing, reliable business relationships with our suppliers we now have strong partners at our side, which in turn enable us to offer you products of the highest quality.
Quality through service and expertise. When you buy components from ETTINGER, you can enjoy peace of mind and confidence in your project.
About ETTINGER
ETTINGER GmbH is based in Hofolding near Munich and has been supplying an extensive range of mechanical components for electronics production for over 60 years. Approximately 25,000 products are permanently available from stock and we can supply another 15,000 products in line with specific customer requirements. We supply many industry sectors with our precision turned parts.
- Electronics manufacturing
- Mechanical engineering
- Medical technology
- Measurement engineering
- Automotive sector and industry
- Sensor technology
- Environmental and solar technology