The bolts have M6 thread and are 50mm long, steel, bright zinc plated finish.
eBay
Folding Anti-crush Baby Crib Convenient Bed Middle Bed with Mosquito Net Comfortable Mattress Travel Crib for Newborn Baby Bed
Aliexpress UK
The Famous Lost Bunk Bed or Cot Bed Bolts or Patio Furniture Bolts ~ complete with Half Moon Nuts. bolts lengths available, 140mm & 120mm & 100mm.
eBay
Walnut splicing bed Children's cot Crib Beech splicing queen Baby widened bed Single bed
Aliexpress UK
M8 Furniture Connecting Bolts Hex Allen Key Flathead. 150mm - Partial Thread. 40mm - Full Thread. The head of the bolts has a 5mm Hex Drive Allen Key Socket. Buy Now from an established furniture component distributor specialising in bed parts.
eBay
Barrel Bolts M6 Cross Dowel Phillips Horizontal Hole Nut Hammer Embedded Nut for Furniture Beds Crib Wood Chairs Zine Iron
Aliexpress UK
Set of 12 bed bolts with slotted cross dowels (barrel nuts) and 4mm allen key for assembly. The bolts have M6 thread and the shank part is 100mm long, 103mm long overall including the head, steel, bright zinc plated (silver coloured) finish.
eBay
10pcs M6 Barrel Bolts Cross Dowel Slotted Furniture Nut for Beds Crib Chairs
Aliexpress UK
Perfect for Beds. Bunks, Cots, Tables, Chairs and other Timber Assembly. 1 Bunk Bed Bolt + 1 Half Moon Nut. 2 Bunk Bed Bolts + 2 Half Moon Nuts. 1 Bunk Bed Bolt Only. 3 Bunk Bed Bolts + 3 Half Moon Nuts.
eBay
6/12pcs M4 M5 M6 M8 Barrel Bolts Cross Dowel Slotted Horizontal Hole Nut Hammer Embedded Nut Fittings for Beds Crib Chairs
Aliexpress UK
M6x35mm Black Furniture Connector Bolts With Cap Nuts. Threaded Bolts ideal for joining units together and furniture assembly such as beds, cots, kitchen units and many other uses. Bolt Length: 35mm.
eBay
Bedside Sleeper, Mesh Bedside Bedside Crib, Convertible Cosleeping Baby Bed Attach to Bed to Reduce Mom's Fatigue
Aliexpress UK
Zinc plated finish.
eBay
300/400CM Baby Crib Bumper Infant Children's Bed Barriers Newborns Around Cushion Braid Crib Cot Decoration Protector
Aliexpress UK
Quantity ：50pcs. 5Pcs x M6 x 40mm screws. 5Pcs x M6 x 50mm screws. 【Friendly Design】：The flat head screw nut slot is deep and the surface is smooth and burr-free. The uniform strength of the screw nut and screws ensure that they do not slip or tear off during use.
eBay
Baby Bed Bumper For Newborns Boy Girl Thick Crib Protector Detachable Protective Kid Cot Cradle Cushion Children Room Decoration
Aliexpress UK