Hillman 180150 5/16-18 Nylon Lock NUT, Zinc, 100

Hillman Group 180147 Nylon Insert Lock Nut, 1/4-Inch by 20-Inch, 100-Pack

Hillman 830504 Stainless Steel 5/16-Inch Flat Washers, 100-Pack, 1 Pack

Hard-to-Find Fastener 014973230746 Carriage Bolts, 5/16-18 x 3/4-Inch, 100-Piece

Steel Flat Washer, Zinc Plated Finish, ASME B18.22.1, 5/16" Screw Size, 11/32" ID, 11/16" OD, 0.065" Thick (Pack of 100)

The Hillman Group 180153 3/8-16 Nylon Lock NUT

Hillman 150006, 5/16 X 18-Inch, 100-Pack Coarse Thread Hex Nuts, 5/16"-18, Steel, 100 Pieces

5/16" Stainless Flat Washer, 3/4" Outside Diameter (100 Pack) - Choose Size, by Bolt Dropper, 18-8 (304) Stainless Steel

Hard-to-Find Fastener 014973453671 Carriage Bolts, 5/16-18 x 3/4, Piece-25

1/4-20 Nylon Insert Hex Lock Nuts, Stainless Steel 18-8, Plain Finish, Quantity 100 by Fastenere

3/8-16 Nylon Insert Hex Lock Nuts, Stainless Steel 18-8, Plain Finish, Quantity 50 by Fastenere