ISO 898-1 (Fastener Mechanical Properties for Bolts, Screws, and Studs)
ISO 898-1 is the standard for the mechanical properties of bolts, screws, and studs made of carbon steel and alloy steel. To match this to your program, talk with our team.
What ISO 898-1 Covers
It defines the property classes and the tensile, proof-load, wedge, and hardness requirements for externally threaded steel fasteners.
How the Test Is Run
Bolts and screws are proof loaded, pulled to failure, and wedge tested using suitable fixtures, and results are checked against the property class.
Why It Matters
Property-class verification underpins bolted-joint safety and interchangeability; high-force grips, wedge fixtures, and threaded adapters are essential.
Reading the Designation
Cited as ISO 898-1 with its edition year. Confirm the edition and specimen or fixture requirements before finalizing setup. To configure a testing setup, request a quote.
TensileMill CNC products for ISO 898-1
Our specimen-preparation systems and testing equipment compatible with ISO 898-1.

Electro Mechanical Universal Testing System 5 kN / 50 kN with Precision Load Cell
Electro-Mechanical UTM · 5 kN / 50 kN with Precision Load Cell

Threaded Fastener Grips for Bolt and Nut Tensile Testing
Threaded grips for bolt and nut tensile testing
Set up ISO 898-1 testing with TensileMill CNC
Tell us your materials, specimen forms, and required test sections, and our team will match the right configuration.