GB/T 3098.11-2002
Mechanical properties of fasteners--Drilling screws with tapping screw thread (English Version)

Standard No.

GB/T 3098.11-2002

Language

Chinese, Available in English version

Release Date

2002

Published By

General Administration of Quality Supervision, Inspection and Quarantine of the People‘s Republic of China

Latest

GB/T 3098.11-2002

Replace

GB/T 3098.11-1995

Scope

This standard specifies the self-tapping thread conforming to GB/T 5280, the performance of self-tapping screws whose drill part can drill threaded prefabricated holes during installation, and heat-treated self-tapping screws. When this screw extrudes the thread that cooperates with it, it is the drill part of the aid screw and the threaded part connected with it, and the thread is extruded after drilling first. The purpose of this standard is to ensure that the screws are not deformed or broken during the process of drilling prefabricated holes and extruding threads, and that no overload occurs. Therefore, the following properties are considered to be the most important indicators for evaluating the mechanical and operational performance of self-drilling and self-tapping screws: - surface hardness; - the ability to drill prefabricated holes and squeeze the internal thread mated with it; - torsional strength.

GB/T 3098.11-2002 history

• 2002 GB/T 3098.11-2002 Mechanical properties of fasteners--Drilling screws with tapping screw thread
• 0000年 GB/T 3098.11-1995

GB/T 3098.11-2002 -All Parts