Seat and seat belt bolts

[Palmerdad]

Quick question on the bolts used to attach seats and seatbelts. When I bought my '76 Eleganza it was gutted (thus the questions). When I put bolts
down into the floor and step (for the dinette) to hold the seatbelts I can see that there are threaded attachment points. Are these threaded
attachments all that is necessary or should the bolt come out enough to also put a washer and nut on? This will obviously affect how long of bolts I
buy. Also, can anyone confirm that the correct diameter is 1/2 inch?

Secondly, what originally held the dinette seats to the floor? Screws? Bolts? Was there an attachment bracket that perhaps I'm missing?

Thanks in advance!
--
-James Palmer, Traverse City, MI
1976 Eleganza

 

[jerry burt]

No, you don't need an extra nut on the belts. They are 1/2" NC thread bolts.
My '73 dinet seats were secured with sheet-metal angles screwed to the floor. About the same thickness as construction joist hangers. No bolts.
--
Patti & Jerry Burt
73 Gmc 26' Canyon Lands -
Photos - http://jburt.smugmug.com/GMC-Motorhome
Lots of upgrades but lots to do to make it ours.
Members: FMCA - GMCMI - GMCWS - Pacific Cruisers - 49ers

 

[don jeffers]

Our advice is to use Grade 8 bolts long enough to protrude two or three threads or so beyond the nuts under the floor.

Ace Hardware and others carry Grade 8 bolts. Use another bolt to gauge the diameter and then measure the length. It's raining outside or I would
check the size for you.

Don and Susan Jeffers
78 Eleganza III Cad 507

 

[Palmerdad]

Great, thanks guys!
--
-James Palmer, Traverse City, MI
1976 Eleganza