Completed withA4 Nyloc Nuts and a Pair ofA4 Flat Washers. DIN 985 A4-314 Stainless Steel Nyloc Nuts. The bolt head size on these bolts is 10mm acrossthe flats - (10mm Spanner Size). DIN 125 A4-314 Stainless Steel Form A Flat Round Washer QTY 2 (these are probably the most common washers used in the world).
eBay
37/100 black nylon hexagonal flange nuts, 7 sizes: M3, M4, M5, M6, M8, M10, M12; black hexagonal flange nut fasteners.
Aliexpress UK
M6 X 18MM LONG, 10MM SPANNER SIZE. A4 STAINLESS STEEL. ===========================.
eBay
250-Piece 8.8 Grade Metric Bolt and Nut Combination Kit, M5 M6 M8 Flange Hex Nut and Bolt Kit, Yellow Zinc Plated
Aliexpress UK
Sizes: M3 M4 M5 M6 M8. Coating: Color Zinc, White Zinc. Head Style: Square. Feature:Suitable for a variety of scene. - Due to shooting angle, light，display and other reasons, the colors displayed in the picture may be slightly different from the actual product.
eBay
2/5/10pcs Square Nut M3 M4 M5 M6 M8 M10M12 304 Stainless Steel Thin Rectangular Nuts Slider Block for Aluminum Profile Accessory
Aliexpress UK
Standard DIN 934. Hexagon steel Nuts are intended to fasten screws and bolts, when used in conjunction to unthreaded holes. Head Style Hexagon. M8 - 8mm (Suitable Spanner Size 13mm). M12 - 12mm (Suitable Spanner Size 19mm).
eBay
M4 M5 M6 M8 M10 Zinc Alloy Furniture Insert Nut Woodworking Threaded Hex Drive Flange Embedded Nuts For Bed Chair Cabinet Table
Aliexpress UK
Hexagon nylon nyloc nuts. M6 NYLOCK NUTS. 6mm PLATED HEXAGONAL SELF LOCKING NUTS.
eBay
Brass Hot Melt Threaded Insert Nut Iron Tip 3D Printer Accessorie Heating Nut Stainless Screw Bolt Insertnut Kit M2 M2.5 M3 M4
Aliexpress UK
M6 Non Serrated Flange Nuts in Black Stainless Steel. Made from BLACK A2-70 Stainless Steel.
eBay
M2 M2.5 M3 M4 M5 M6 M8 Heat Set Threaded Insert Brass Nut Hot Melt Knurled Inserts Double Twill Embedment Copper Nuts 50-300pcs
Aliexpress UK
10 x M6 x 6mm. 10 x M6 x 10mm. 10 x M6 x 16mm. 250 Piece M6 Kit Includes 10 x M6 x 8mm. 10 x M6 x 12mm. 50 x M6 Nyloc Nuts. 50 x M6 Full Nuts.
eBay
2-50pcs Metric Square Nuts M3 M4 M5 M6 M8 M10 M12 Stainless Steel Quadrate Foursquare Nut
Aliexpress UK
(Available inM5 (5mm )M6 (6mm)M8 (8mm) &M10 (10MM). M6 6mm X 1.0mm. s 10mm (Spanner Size). s 8mm (Spanner Size). M8 8mm X 1.25mm. M10 10mm X 1.5mm. M5 5mm X 0.8mm. - We have already explained this :-).
eBay
M2 M2.5 M3 M4 M5 M6 Brass Hot Melt Insert Knurled Nut Thread Heat Molding Double Twill Injection Embedment Nut For 3D Printer
Aliexpress UK