The drive style refers to the installation tool used. The most common are the Phillips, slotted, a combination of both (Phillips and slotted), and hex (hexagon). Using the correct sized slotted screwdriver or hex key prevents head damage. For hex cap screws, use a wrench made for square head bolts and screws. Selecting an uncommon
HEAVY HEX NUTS Compared to Hex Nuts, the Heavy Hex series is wider by 1/8″ across flats. This provides a number of advantages. Heavy Hex Nuts can span eccentric or oversize bolt holes. They offer increased bearing area to support higher bearing stresses;and they have thicker walls to control nut dilation under load. These effects
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
