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Home   /   Brass Coach Bolts | Carriage Bolts

Brass Coach Bolts | Carriage Bolts

DIN 603 Carriage Bolts, Coach Bolts or Cup Square Bolts are listed below. Characterised by a flat mushroom or dome head, coach bolts have a square section under the head to ensure the bolt does not rotate once fitted. These coach bolts are available in brass, A2 and A4 grade stainless steel and also Bright Zinc Plated steel in grades 4.6 and 8.8. Used primarily in wood construction, they should not to be confused with Coach Screws: coach bolts are inserted into a pre-prepared through hole, and are secured by an appropriately sized nut.
Fastener Material Key
A2
A2 Stainless Steel - Also known as grade 304 or 18/8. A general purpose grade of stainless steel.
A4
A4 Stainless Steel - Also known as grade 316 or 18/8/3. A higher corrosion resistant, marine grade of stainless steel.
Brass
Brass - Offers an attractive, corrosion resistant finish.
BZP
Bright Zinc Plated (BZP) Steel - Non-stainless standard steel grade offering a basic level of corrosion resistance.
BZP-8.8
Bright Zinc Plated (BZP) Class 8 High Tensile Steel - The general purpose high tensile grade for screws and bolts, with a basic level of corrosion resistance.

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