2025 PRODUCT GUIDE-INTERACTIVE - Flipbook - Page 44
EUROPEAN TECHNICAL
ASSESSMENT
ETA-22/0103
(TEK 3)
A8 Bi-metal™
Stainless Steel Fasteners
sales@evofas.com
Designed For -
Fastening when extreme
corrosion resistance,
stress-corrosion cracking
resistance and/ or chloride1
resistance (where chloride
concentration is ≤ 250 mg/l).
Head Style -
5/16” hexagonal male socket
Thread Form -
Light Section = 14 TPI
or, Heavy Section = 24 TPI (w/
V-fluting).
Drill point -
Light Section = TEK 3 (Min.
1.2mm – Max. 3.5mm), or, Heavy
®
Section = TEK 5 (Min. 4.0mm –
Max. 12.0mm).
Material and grade -
JIS SCM 435 (hardened) self-drilling tip brazed to EN 1.4529/ EN
1.45391 stainless steel body and
head.
Additional Coating -
Washer -
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ASSESSMENT
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®
KEY POINTS
5µm electo-deposited zinc (w/
blue dichromate (trivalent)
passivation).
•
Bi-Metal™ construction synergises the self-drilling performance of an SCM 435
self-drilling point with the exceptional corrosion resistance of EN 1.4529/ EN
1
1.4539 stainless steel.
•
5/16” (8.0mm AF) hexagonal (male) socket head allows rapid
installation using standard non-impacting screwdrivers and drive bits.
•
EN 1.4529/ EN 1.4539 stainless steel body and head provide
ultimate corrosion protection that exceeds organic coating
performance.
16.0mm Bonded EPDM
1
The high nickel and molybdenum content of this alloy allows its’ use
1
2
in extremely corrosion environments containing chlorides , halides
and other volatile organic compounds (such as plant rooms, chemical
process facilities (and equipment), pressure vessels and swimming
1
pools .
PRODUCT RANGE/ USABILITY DATA
CODE
SIZE/NOM.LGTH
(mm)
BOX/BAG
CARTON
DRILL
CAP.(mm)
LIGHT SECTION
A8BMBW38-3
5.5 x 38
200
2,000
1.2-4.0
A8BMBW50-3
5.5 x 50
200
2,000
1.2-4.0
ENGINEERING
200 SPECS 2,000
4.0-12.0
HEAVY SECTION
A8BMBW38-5
5.5 x 38
A8BMBW50-5
5.5 x 50
200
2,000
4.0-12.0
1 EN 1.4539 grade product may only be used when chlorides present are ≤ 250 mg/l,
2 Please check with Evolution technical on your halide concentration
44
CARBON
STEEL TEK®
RANGE
BI-METAL TEK® INSULATION
RANGE
FIXINGS
STRESS
PLATES/
WASHERS
MASONRY
SCREWS
& ANCHORS
®
DRYWALL
WOODMASTER
SUPPLEMENTARY
Tel: +44 (0)141 647
7100
Fax: ACCESSORIES
+44 (0)141 647 5100
SCREWS
RANGE
INFORMATION
