A bolt contains two parts a shank and head. The cylindrical portion of the bolt is known as the shank. The shank is threaded at the tail end for a sufficient length so as to effectively engage with a nut.
The shape of the head is depended upon the purpose for which bolt is required. The nut is a type of a fastener which has a threaded hole in it. The nut is always used in joining with a mating bolt to fasten various parts together.
Bolts and nuts can be made of various materials such as steel, titanium or plastic. The finish or plating on a metal bolt or nut affects its look and durability. Below are some common finishes and benefits:
• Zinc - Most common, low cost, resists corrosion and rust
• Nickel - Very hard finish, higher investment, good corrosion resistance
• Chromium – Bright finish, good rust and corrosion resistance
• Chromate – Adds color, shine, superior rust resistance
• Anodizing - Aluminum, hard oxide surface, excellent corrosion resistance
Generally purchasing of fasteners are in Kilograms instead of pieces. But we could not know how many numbers available per Kg. For construction purpose, Bulk purchase is advisable. Hence below count table will be useable. Counts are based on 50Kg
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