2025 PRODUCT GUIDE-INTERACTIVE - Flipbook - Page 67
A4 Bi-Metal Lowered
Dome head
2002/95/C
Tel: +44 (0)141 647 7100
Designed For -
Fixing components, brackets and
miscellaneous hardware to light gauge
steel substrates where a low profile or
anti-snag head is required. Also suitable
where dissimilar metals are being used
or superior corrosion resistance is
required.
Head Style -
12mm ᴓ low profile (3.40mm) domed
head
Drive Type -
Torx 25
Thread Form -
Coarse thread (pitch = 1.8mm approx.)
Material Grade -
Stainless steel, AISI 316
Drill Speed -
1,500 - 2,500 RPM
Coating -
5µm electroplated zinc
Drill Point
Material -
Carbon Steel
Fax: +44 (0)141 647 5100
KEY POINTS
•
For 1.2-4.0mm steel thickness.
•
A4 Corrosion protection to ensure long-term fastener integrity.
•
General purpose stitching screw:particularly useful for stitching and
lapping together of light-gauge mildsteel sheeting, cladding panels,
rainscreen or fenestration systems in aggressive
environments where an anti-snag, anti-ponding or low-profile head is
required.
Domed head with Torx 25 (male) socket recess allows rapid
installation. Sharp tapping threads ensure lower torque
requirements and mitigate against user wrist fatigue
PRODUCT RANGE/ USABILITY DATA
CODE
SIZE/NOM.LGTH
(mm)
BOX
CARTON
THREAD LGTH.
(mm)
DRILL CAP.
(mm)
A4LDH5.5-25-3
5.5 x 25mm
200
2,000
FULL
1.2-4.0
A4LDH5.5-35-3
5.5 x 35mm
200
2,000
FULL
1.2-4.0
67
CARBON
STEEL TEK®
RANGE
BI-METAL TEK® INSULATION
RANGE
FIXINGS
STRESS
PLATES/
WASHERS
MASONRY
SCREWS
& ANCHORS
DRYWALL
SCREWS
WOODMASTER®
RANGE
ACCESSORIES
SUPPLEMENTARY
INFORMATION
