Screw Connection

Definition

A screw connection is a mechanical joint in which at least two components are joined together using a screw. Tightening the screw generates a tensile force in the thread, which provides the necessary clamping or preload force and securely connects the parts.

Types

There are different types of screw connections:

• Through bolt connection
• Threaded screw
• Screw-in thread
• Captive screws

Materials

Screw connections can be made from various materials:

• Steel (carbon steel, alloy steel, stainless steel)
• Brass
• Polyamide (plastic)
• Bimetal
• Aluminum
• Copper

Applications

Screw connections are used in numerous areas:

• Furniture industry
• Mechanical engineering
• Automotive industry
• Aerospace industry
• Electrical installations
• Construction industry
• General assembly work

Maintenance and Care

Maintenance and care for screw connections include:

• Regular inspection for damage or wear
• Keeping screws and surrounding areas clean
• Special attention in harsh environments
• Keeping records of installation and maintenance

Standards and Certifications

Screw connections are subject to various standards and certifications:

• ISO 5393
• DIN 1319
• VDI 2230
• ISO 9001 (Quality)
• ISO 14001 (Environment)
• ISO 50001 (Energy)
• IATF 16949 (Automotive industry)
• DIN EN ISO 17025 (Laboratory accreditation)