![Post Attachment Kit - Includes (2) Nuts, (2) Nylon Washers, (2) Lock Washers, (2) 1.5” Long Bolts and (2) 2.5” Long Bolts, from SmartSign : Amazon.ca: Industrial & Scientific Post Attachment Kit - Includes (2) Nuts, (2) Nylon Washers, (2) Lock Washers, (2) 1.5” Long Bolts and (2) 2.5” Long Bolts, from SmartSign : Amazon.ca: Industrial & Scientific](https://m.media-amazon.com/images/I/61M30BWYyPL.jpg)
Post Attachment Kit - Includes (2) Nuts, (2) Nylon Washers, (2) Lock Washers, (2) 1.5” Long Bolts and (2) 2.5” Long Bolts, from SmartSign : Amazon.ca: Industrial & Scientific
Are washers necessary for proper operation of bolts? - Civil Engineering Portal - Biggest Civil Engineering Information Sharing Website
![M6-1.0 x 30mm Hex Bolts, Nuts, Flat & Lock Washers Kits, Stainless Steel 18-8 (A2-70), Fully Threaded, 20 Sets : Amazon.ca: Tools & Home Improvement M6-1.0 x 30mm Hex Bolts, Nuts, Flat & Lock Washers Kits, Stainless Steel 18-8 (A2-70), Fully Threaded, 20 Sets : Amazon.ca: Tools & Home Improvement](https://m.media-amazon.com/images/I/51ptfwaBuHL._AC_UF894,1000_QL80_.jpg)