68vitesse Posted February 2, 2021 Report Posted February 2, 2021 Anything special about seat belt bolts?, thinking of using black high tensile 8.8 7/16 UNF. Many thanks. Regards Paul.
Pete Lewis Posted February 2, 2021 Report Posted February 2, 2021 think they tend to have a bigger hex head than a std bolt Pete
NonMember Posted February 2, 2021 Report Posted February 2, 2021 As Pete says, a bigger head. This is because the belt end has a bigger hole - there's a spacer fitted under it so that it can rotate, and the bolt head clamps down on the spacer but must be large enough to retain the belt end. At a push, I think you could use a washer to achieve the same result?
Paul H Posted February 3, 2021 Report Posted February 3, 2021 Just checked mine on my Vitesse 11/16 af Paul
NonMember Posted February 3, 2021 Report Posted February 3, 2021 22 minutes ago, Paul H said: Just checked mine on my Vitesse 11/16 af Sounds right. The standard 7/16" UNF bolts would have 5/8" AF heads but the hole in the seatbelt end is probably 5/8" diameter
PeteH Posted February 3, 2021 Report Posted February 3, 2021 Whilst I have no physical "evidence" to back this up. The "Propper" bolts may well not be high tensile too?. (I note the OP was suggesting H-T). However most mounting situations would have the Bolts in Shear. H-T bolts are not best known for this, They exhibit a loss of Ductility, for example, and have been known to fail when subjected to (shear) testing?. Pedantry in action, I apreciate?.
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