DTA / DTB screws

DTA / DTB Screws organometallic

No. 2 Phillips-head steel screw, self-tapping, phosphate-coated, and organometallic-coated.

DTA / DTB screws

Title:

Description:

Steel Screw, No. 2 Phillips Drive, Trumpet Head, Self-Tapping, Finishes:
Phosphated: Needle Point and Drill Point;
Organometallic: Needle Point and Drill Point;

Drills, joins, and fastens sheets to metal profiles in a single operation;
High power and drilling capacity;
Corrosion-resistant;
Highly resistant to twisting;
Needle-point tip for profiles up to 0.7 mm;
Drill bit tip for profiles between 0.7 and 2.0 mm;

Product complies with the following standards:

ABNT NBR 15758:2025 – Gypsum board construction systems for drywall;
ABNT NBR 17235:2025 – Drywall — Screws — Requirements and Test Methods;
ABNT NBR 16970:2022 – Light Steel Framing — Structural systems based on profiles (Steel Frame);

Phosphate Finish:

Installation of ST Interior Drywall Sheets on Metal Studs.

"1000-hour organometallic finish":

Fastening of external“Glass Mat” panelsto metal profiles.
RU Sheet Fastening – Moisture-Resistant;
RF Sheet Fastening – Fire-resistant;
Installation of STD Drywall Panels;
Wet or wettable areas;

Code	Dimensions (mm)		Reference measurements		PHS key n°	Drilling capacity** (mm)
Code	Diameter	Length	Gauge	Length	PHS key n°	Drilling capacity** (mm)
WITH ORGANOMETALLIC VERSION DTA25S***	3,5	25	#6	1”	2	0,5
WITH ORGANOMETALLIC VERSION DTA25S***						0,7
DTA25
DTA35		35		1.3/8"
DTA45		45		1.3/4"
DTA50		50		2”
DTA57*		57		2.1/4"
DTA63*	4,2	63	#8	2.1/2"
DTA70*	4,2	70	#8	2.3/4"

(1) See other finishes.
(2) The fastener with a phosphated and organometallic finish complies with ABNT NBR 15758:2025 – Gypsum board construction systems for drywall; ABNT NBR 17235:2025 – Drywall — Screws — Requirements and test methods; ABNT NBR 16970:2022 – Light Steel Framing — Structural systems based on profiles (Steel Frame); for fastening interior panels.
* This size may have a partial thread.
** Profile thickness.
*** Available in an organometallic finish. For the organometallic-coated version, remove the “S” and add “OM” at the end of the code.

Code	Dimensions (mm)		Reference measurements		PHS key n°	Drilling capacity** (mm)
Code	Diameter	Length	Gauge	Length	PHS key n°	Drilling capacity** (mm)
WITH ORGANOMETALLIC VERSION DTB25	3,5	25	#6	1”	2	0,7 - 2,0
WITH ORGANOMETALLIC VERSION DTB35		35		1.3/8"
WITH ORGANOMETALLIC VERSION DTB45		45		1.3/4"

*Reference code for the phosphated version of the product. For the organometallic-coated version, add “OM” to the end of the code.
(2) The fastener with a phosphated finish complies with ABNT NBR 15758:2025 – Gypsum board construction systems for drywall;
ABNT NBR 17235:2025 – Drywall — Screws — Requirements and test methods; for fastening interior panels.
(3) The fastener with a 1000h organometallic finish complies with ABNT NBR 16970:2022 – Light Steel Framing — Structural systems based on profiles (Steel Frame); for fastening exterior panels.
** Profile thickness.