Internal and External Fastener Drive Systems

Zip Fastener Products can manufacture any internal and external drive system, inch or metric, per ASME and ISO standards.  Internal drive systems include but are not limited to slot, Type 1, Type 1A and Type II cross recess, Type III Square recess, hex recess and 6 Lobe (Hexalobular) recesses.  External drive systems include but are not limited to indented hex, trimmed hex, hex washer, hex flange, 12 point, 6 Lobe external, hex stem and 6 Lobe stem. 

Internal and External Drive Systems


Low carbon steel
Medium carbon steel
Alloy steel
Stainless steel
Other materials on request

Size Range:

Standard metric and inch sizes
M4 to M12
#6 to ½”


Heavy Truck
Lawn and Garden equipment
Oil and Gas Industry
Power Generators
Power Sports equipment
Railway Industry
Truck and Trailer