They are produced by one of the largest furniture component manufacturers in Europe and are made of the highest quality. They are made from Steel and finished in (YZP) Yellow Zinc Plating (Brass Colour). The Head Diameter of the Bolts is 15mm. The head of the bolts has a 4mm Hex Drive Allen Key Socket. We stock these bolts in various length's from 25mm going up to 150mm and these are available in various pack sizes.This item is in the category "Home, Furniture & DIY\DIY Materials\Nails, Screws & Fasteners\Other Fasteners". The seller is "the-bed-slats-company" and is located in this country: GB. This item can be shipped to North, South, or Latin America, all countries in Europe, Australia, Bahrain, Japan, New Zealand, China, Israel, Hong Kong, Indonesia, Malaysia, Singapore, Korea, South, Taiwan, Thailand, Bangladesh, Brunei Darussalam, Egypt, Jordan, Cambodia, Sri Lanka, Macau, Maldives, Oman, Pakistan, Reunion, Saudi Arabia, South Africa, United Arab Emirates, Kuwait, Philippines, Qatar, Vietnam.