CUSTOM FASTENERS: DESIGN BASED ON GUARANTEED MINIMUM VALUES FOR HIGHER RELIABILITY

✔ WHY MINIMUM VALUES MAKE THE DIFFERENCE IN DESIGN

Reliability, consistency, and safety start with the right values.

In the design of fastening systems, guaranteed minimum values are not just numbers: they are the concrete reference that ensures consistent performance, regardless of material or production process variability.

In contrast, typical values provide only an average indication—useful, but not sufficient as a design basis.

Discover why designing based on minimum values means making solid, verifiable, and reliability-focused choices over time.

✔ MINIMUM VALUES: THE DESIGN REFERENCE

Minimum values are defined by standards (e.g., strength classes) and represent the guaranteed level that every component must meet.

They are not average values, but certified lower limits, determined by considering:

• material variability

• process deviations

• real production conditions

For this reason, they implicitly incorporate a safety factor.

Designing based on these values means working with data that is:

• verifiable

• repeatable

• valid for every compliant batch

✔ TYPICAL VALUES: AN INDICATION, NOT A GUARANTEE

Typical values describe average performance observed under certain production conditions. However:

• they are not standardized

• they are not guaranteed for every supply

• they do not account for application variability

Therefore, they are indicative—useful for understanding general behavior, but insufficient as a design basis.

✔ IMPLICATIONS FOR DESIGN

Using typical values as a reference may lead to:

• overestimation of available performance

• unintended reduction of safety margins

• greater variability in joint behavior

Conversely, designing based on minimum values allows you to:

• maintain consistency between design and production

• ensure performance even under variable conditions

• reduce the risk of failure or preload loss

In critical contexts, this choice is decisive for system reliability.

✔ A CONTROL-BASED APPROACH

Relying on minimum values does not mean being inefficiently conservative, but designing on solid and verifiable foundations.

In this context, the ability to control the production process becomes central:

• material quality

• treatments

• performance

• process stability

✔ SARIV'S CHOICE

SARIV develops custom fastening systems, designed according to the application and manufactured in-house.

This allows:

• guaranteeing compliance with standard minimum values

• ensuring consistency between specification and actual product

• maintaining high repeatability thanks to IATF 16949 and ISO 9001 certified processes

Focusing on minimum values is not a limitation, but a design choice oriented toward long-term reliability.