ABS Type Approval 21-2140400-PDA for S-BT fastening system in off-shore and shipbuilding application

As of 01/Aug/2021Type Approved
HILTI AKTIENGESELLSCHAFT
FELDKIRCHERSTR. 100
9494 SCHAAN
Liechtenstein
Telephone: [phone]
Fax:
Email: [e-mail]
Web: www.hilti.com
Tier: 3 - Type Approved, unit certification not required
Product: Fastening System
Model: S-BT screw-in stainless steel multi-purpose threaded fasteners: S-BT-MR M10, S-BT-MR
MT M10, S-BT-MR W10, S-BT-MR M8, S-BT-MR MT M8
S-BT screw-in carbon steel multi-purpose threaded fasteners: S-BT-MF M10, S-BT-MF MT
M10, S-BT-MF W10, S-BT-MF M8, S-BT-MF MT M8
S-BT screw-in stainless steel threaded fasteners for electrical purposes: S-BT-ER M10, S-
BT-ER W10, S-BT-ER M8, S-BT-ER M10 HC, S-BT-ER W10 HC
S-BT screw-in carbon steel threaded fasteners for electrical purposes: S-BT-EF M10, S-BT-
EF W10, S-BT-EF M8, S-BT-EF M10 HC, S-BT-EF W10 HC
S-BT screw-in stainless steel threaded fasteners for gratings: S-BT-GR M8 or S-BT-GR NG
M8 (in association with Composite Fasteners X-FCM-R, X-FCM-M, X-FCM-R NG, X-
FCM-M NG)
S-BT screw-in carbon steel threaded fasteners for gratings: S-BT-GF M8 or S-BT-GF NG
M8 (in association with Composite Fasteners X-FCM-M, X-FCM-M NG)
Endorsements:
Intended Service:
For fastening of fastened materials to base materials of carbon steel or aluminum in the Ship and Shipbuilding
environment and in Offshore Structures.
Description:
1. In the S-BT fasteners, the threaded stud is set into a small pre-drilled pilot hole and the drill entry point is then
completely sealed by the stud washer during setting. This doesn’t require any rework of the protective surface coating
because there is no through penetration of the base material.
2. For the S-BT System there is also the possibility to set the stud into a drill through hole in thin base material. In this
case a rework of the protective surface on the backside is potentially needed.
3. Dimensions and material specifications of S-BT fasteners: refer to the Data Sheets (“Hilti S-BT screw-in threaded
studs –Specification binder”, “Hilti Product Data Sheet –S-BT screw-in stainless steel and carbon steel threaded
studs”, “Hilti Product Data Sheet –X-FCM Grating Fastening System”, “Hilti Product Data Sheet –X-FCM NG
Grating Fastening System”, “Hilti Product Data Sheet –S-BT-ER / -EF”)
4. The fasteners are to be installed and inspected using installation procedures and tools recommended by the
manufacturer as in the Data Sheet:
a) Drilling tool: SF BT 18-A, SF BT 22-A or SBT 4-A22;
b) Drill bits: TS-BT 4.3-74 S, TS-BT 5.5-74 S, TS-BT 5.5-110 S, TS-BT 5.5-74 AL.
5. Base material thickness tII and type of bore hole:
a) Pilot hole, base material steel: tII >= 6 mm [0.24”];
b) Pilot hole, base material aluminum: tII >= 6 mm [0.24”];
c) Drill through hole, base material steel: 6 mm [0.24”] > tII >= 3mm [0.12”];
d) Drill through hole, base material aluminum: 6 mm [0.24”] > tII >= 5mm [0.20”].
6. Composite fasteners are either made from stainless steel (X-FCM-R, X-FCM-R NG) or from duplex coated carbon
steel (X-FCM-M, X-FCM-M NG).
Rating:
1. Refer to the Data Sheets in the attachment (“Hilti S-BT screw-in threaded studs –Specification binder”, “Hilti
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