'63 Valiant V200 wagon - rare bolt issue

https://www.amazon.com/s?k=7/16+-+20+bolt&adgrpid=1340305240449657&hvadid=83769318215137&hvbmt=bp&hvdev=c&hvlocphy=111920&hvnetw=o&hvqmt=p&hvtargid=kwd-83769428129352:loc-190&hydadcr=290_1014986991&msclkid=0d8e3199c5461b2e936b57497584c998&tag=mh0b-20&ref=pd_sl_8no16zcben_p&tag=fabo03-20 7/16 20 hex head assortment (non Banjo)