Carriage Bolts

Carriage Bolts

ASTM A307-Grade A Carriage bolts are used to fasten metal to timber.  The square shoulder under the rounded head helps hold the bolt in place once tightened.  Carriage bolts come in a variety of sizes and materials such as:  Zinc-plated:  Better corrosion resistance Grade 5 Steel:  Most commonly used in automotive industry Stainless Steel 18-8: 

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Screws and Bolts

FLAT HEAD CAP SCREW This fastener is a quality, close tolerance product with dimensions conforming to USASI B18.6.2. Made of Grade 2 steel, it provides a tensile strength of 74,000 psi. The flat countersunk head has an accurately milled slot for holding or tightening with screwdriver. Available from stock in diameters from 1/2 through 3/4

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