Fischer 558881 FAFS Adjustment Screw 5 mm x 100 mm T-Profile Steel Galvanized Torx T25 Countersunk Head (100 Pack)

Precision levelling for facade and frame installation starts with the Fischer FAFS adjustment screw: a 5 mm diameter, 100 mm length steel fastener with full thread and a Torx T25 drive, supplied in a pack of 100. Its galvanized finish and ETA-11/0284 approval ensure reliable corrosion protection and load-bearing performance in wood and wood-based substrates.

Overview

The Fischer 558881 FAFS adjustment screw is engineered for adjustable distance installation in facade construction, window and door frame mounting, subconstructions, and wood construction. The T-profile design and countersunk head (8.5 mm diameter) allow flush seating, while the full thread provides strong anchorage. The Torx T25 drive ensures positive bit engagement, reducing cam-out during installation. Each pack contains 100 screws, ready for professional use.

What stands out

• 5 mm diameter and 100 mm length for versatile adjustment ranges
• Galvanized steel for standard corrosion protection in interior and covered exterior applications
• Torx T25 drive for efficient, slip-resistant fastening
• Countersunk head with 8.5 mm diameter for a clean, flush finish
• Full thread for maximum holding power in wood-based materials
• ETA-11/0284 approval confirms structural suitability
• Pack of 100 for cost-effective project coverage

Technical details

• Product type: Adjustment screw / levelling screw
• Brand series: FAFS Justierschraube
• Screw diameter: 5 mm
• Screw length: 100 mm
• Drive type: Torx
• Drive size: T25
• Head type: Countersunk head (Senkkopf)
• Head diameter: 8.5 mm
• Material: Steel
• Surface treatment: Galvanized (verzinkt)
• Thread type: Full thread (Vollgewinde)
• Application area: Facade construction, window/door frame installation, subconstructions, wood construction
• Quantity per pack: 100 pieces
• Corrosion protection: Standard (due to galvanization)
• Recommended base material: Wood, wood-based panels
• Installation type: Adjustable distance installation
• Tool compatibility: Torx T25 bit
• Approval/Certification: ETA-11/0284

Our verdict

A dependable adjustment screw for professionals who need precise levelling in wood-based construction. The galvanized steel and Torx drive deliver durability and ease of use, while the 100-piece pack keeps projects moving without interruption.