TECHNICAL MANUAL SCREW FASTENING INTERIOR FINISHING

Interior finishing screws • Drywall boards to metal substructure 4 • Drywall boards to wood substructure 4 • Fibre boards to wood or metal substructure 5 • Hard boards to wood or metal substructure 5 • Cement boards to wood or metal substructure 5 • Drywall boards to drywall boards 6 • Acoustic boards to metal substructure 6 • Wood boards to metal substructure 6 • Wood boards to wood substructure 7 • Wire lath to metal substructure 9 2. Features of interior finishing screws 10 • Screw drive / Recess type 11 • Types of screw points 13 • Hilti drywall screw nomenclature 14 5. Overview of tools...

1. OVERVIEW Drywall boards to metal substructure Description Drywall boards to wood substructure Description Interior finishing screw – Technical manual – 04/22

Interior finishing screws Fibre boards to wood or metal substructure Description Hard boards to wood or metal substructure Description S-DS 22 B (all hard board types) Cement boards to wood or metal substructure Description Interior finishing screw – Technical manual – 04/22

OVERVIEW Drywall boards to drywall boards Description Acoustic boards to metal substructure Description Exterior sheathing boards to metal substructure Description Wood boards to metal substructure Description Interior finishing screw – Technical manual – 04/22

Interior finishing screws Wood boards to wood substructure Description Interior finishing screw – Technical manual – 04/22

OVERVIEW Metal framing Description Stitch point screws S-DS 05 B Interior finishing screw – Technical manual – 04/22

Interior finishing screws Wire lath to metal substructure Description S-DD 03 Z Door framing Description S-MD 03 PZ Interior finishing screw – Technical manual – 04/22

Screw fastening: Basic information 4 4.8FEATURES Head shapes 2. OF INTERIOR FINISHING SCREWS 4.8.1 Drywall screws for interior finishing The oval head has a large bearing surface so that higher pull-over values can be obtained. Oval head The diameter of a pan head is somewhat smaller than that of an oval head. The pan head is used primarily for fastening metal to metal. The countersunk head is for fastenings where the screw head may not protrude above the surface. Countersunk head The bugle head is used when fastening drywall panels (plasterboard, gypsum panels, etc.) to metal or timber framing....

Screw fastening: Basic information 4 Interior finishing screws 4.9 Types of head drives 4.9.1 Drywall screws for interior finishing Screw drive / Recess type Phillips cross recess (PH) Standard drive recesses for most drywall screws Pozidrive cross recess (PZ) Head drive recess for wood screws Combination of Pozidrive and cross recess Pozidrive cross recess with an additional slot for a screwdriver; a head drive recess for wood screws Head drive recess for tapping screws and wood screws Square head for wood screws in HNA Interior finishing screw – Technical manual – 04/22 Hexagon head for wood...

Types of threads fine thread (single or double lead) The most widely used thread shape for fastening drywall panels to metal framing metal substructure. This kind of thread enables high pull-out values to be obtained in thin metal. (Specified according to DIN 18 182, part 2) Coarse thread This kind of thread is used primarily for fastenings in timber (wood). Consequently, it has a taper point. This combination makes it possible for a low screw driving torque to be used and a good pull-out value to be obtained in timber (wood). (Specified according to DIN 7998) HI-LO thread The HI-LO thread is...

Screw fastening: Basic information 4 4.11.1 Drywall screws for interior finishing Interior finishing screws 4.11 Types of screw points Types of screw points 4.11.1 Drywall screws for interior finishing The S point or tapered point is used primarily when fastening in plastic, wood or lightgage metal framing members up to max. 0.8 mm thickness. Main field of application: Drywall fastening This is a special point for wood-to-wood fastenings. The nail point makes it easier for the screw to be positioned with pinpoint accuracy. Also, it breaks wood fibers during penetration and thus hardly splits...

Screw System Length Diameter D: Drywall M: Metal W: Wood S: Sharp / Stitch D: Drill B: Black Phosphated Magazine Strip C: Duplex coated carbon steel 14 Interior finishing screw - Technical manual - 04/22 www.hilti.com

Interior finishing screws Interior finishing screw – Technical manual – 04/22

3. CORROSION PROTECTION With the objective to supply reliable and durable products, Hilti is constantly active in the development of methods of corrosion protection suitable for use with screws and fastening systems. To evaluate the risk of corrosion, it is essential to assess the interaction between environmental conditions, material properties, material combinations and design characteristics. To understand this interaction, you would need to consider the following influencing factors to atmospheric corrosion: • Humidity: Humidity is a requirement for all atmospheric corrosion reactions. •...

Interior finishing screws The salt spray test checks the effectiveness of protection against corrosion and quickly identifies defects, flaws, etc. in metal platings. Screws are placed in a test chamber with a temperature of about 35°C in which they are sprayed constantly with a salt solution (usually sodium chloride). The test chamber has a volume of at least 400 liters and the walls are lined with a corrosion-resistant material to ensure that the test results are not influenced by other factors. The duration of the test depends on the type and thickness of the coating on the screw and the coating’s...

ENVIRONMENT CATEGORIES Applications can be classified in various environment categories, taking the following main factors into account: Indoor applications Dry indoor environments (heated or air-conditioned areas) without condensation, e.g. office buildings, schools Indoor environments with temporary condensation (unheated areas without pollutants), e.g. storage sheds Outdoor applications Outdoor, rural or urban environment with low pollution Large distance (> 10 km) from the sea Outdoor, rural or urban environment with moderate concentration of pollutants and/or salt from sea water. Distance...