S-BT Threaded Fastener Specification

Specifications page5
S-BT Screw-in threaded studs
1 INTRODUCTION
1.1 Denition
TheS-BTfastenersarethreadedstudsmanufacturedfromhardenedcarbonsteel
1038andaustenitic-ferritic(Duplex)stainlesssteel1.4462acc.DIN-EN10088-1
(AISI316and318LNequivalent).TheS-BTthreadedstudsarefastenerswithmale
threads(metricM8andM10orinchW10)forattachmentononeendanda
threadedtipontheotherendforembedmentintothestructuralsteeloraluminum.
CarbonsteelstudsaresuppliedwithanaluminumsealingwasherØ10mm,
stainlesssteelstudsaresuppliedwithastainless-steelsealingwasherØ12mm,
bothwithachloroprenerubbersealingring.
TheS-BTtechnologycanbeusedasanalternativetotheweldsandboltsusedto
attachmaterialstostructuralsteelandforfasteningapplicationsinshipbuilding
environmentandoffshorestructures.
TheS-BTfastenerwillbescrewedinintoapre-drilledhole.Thescrewistappingits
owninternalmatingthreadswheninstalledintobasematerial.Aspecialstepped
drillbitisneededtoguaranteeanaccuratelydenedpre-drilledholeintermsof
borehole depth and diameter. With this system reliable fastenings can be made in
steelwithathickness3mm[0.12”]≤t
II
<6mm[0.24”]andinaluminumwitha
thickness5mm[0.20”]≤t
II
<6mm[0.24”]inpre-drilledthroughholes.Forbase
materialssteelandaluminumt
II
≥6mm[0.24”]thefastenerisintendedtobesetin
apre-drilledpilothole.Thebenetofpilotholesisnothroughpenetrationofthe
basematerial.Iftherealbasematerialthicknesst
II
exceeds6mm[0.24”],no
reworkoftheprotectivesurfacecoatingonthebacksideisneeded.Incaseofa
drillthroughholeorapilotholeinthinnerbasematerial,reworkofthecoatingon
thebacksideoftheplate / prolemaybeneeded.Formoredetailsrefertosection
3.2.8“Corrosioninformation”.
1.2 The S-BT system
1.2.1 S-BT fastener and designation
Stainless steel Carbon steel
Multipurpose
fastening
S-BT-MRM8/7SN6
S-BT-MRMTM8/7SN6
S-BT-MRM8/7SN6AL
S-BT-MRM8/15SN6
S-BT-MRM8/15SN6AL
S-BT-MRM10/15SN6
S-BT-MRMTM10/15SN6
S-BT-MRM10/15SN6AL
S-BT-MRW10/15SN6
S-BT-MRW10/15SN6AL
S-BT-MFM8/7AN6
S-BT-MFMTM8/7AN6
S-BT-MFM8/15AN6
S-BT-MFM10/15AN6
S-BT-MFMTM10/15AN6
S-BT-MFW10/15AN6
Grating
fastening
S-BT-GRM8/7SN6
S-BT-GRNGM8/7SN6
S-BT-GRM8/7SN6AL
S-BT-GFM8/7AN6
S-BT-GFNGM8/7AN6
Electrical
connections
S-BT-ERM8/15SN6
S-BT-ERM10/15SN6
S-BT-ERW10/15SN6
S-BT-ERM10HC120
S-BT-ERW10HCAWG4/0
S-BT-EFM8/15AN6
S-BT-EFM10/15AN6
S-BT-EFW10/15AN6
S-BT-EFM10HC120
S-BT-EFW10HCAWG4/0
Section of S-BT fastener installed in a
pilot hole