NRG SBH-B6PCPP 5 Point SFI Approved Cam Lock Buckle Racing Seat Belt Harness NRG SBH-B6PCPP 5 Point SFI Approved Cam Lock Buckle Racing Seat Belt Harness. Our SFI 16.1 Approved Cam-lock Racing Harnesses. Featuring 3″ wide straps attached to our Heavy Duty Cam-Lock, with a 2″ submarine strap...