https://www.tcfixings.co.uk/articles/Stainless-Steel-Coach-Bolts-A2-vs-A4-comparison
Stainless Steel Coach Bolts: A2 vs A4 | TC Fixings
stainless steel coach boltsa2
https://www.tcfixings.co.uk/category/stainless-steel-coach-screws/596
Stainless Steel Coach Screws | Stainless Lag Screws & Bolts
A range of hexagon head coach screws in either A2 (304) stainless steel or A4 (316) marine grade stainless steel. Stainless steel coach screws, also commonly...
stainless steel coach screwslag bolts