Stainless Steel Hex Cap Screws
Hex Head Bolts in 18-8 Stainless Steel
A hex cap screw is a cap screw with a
hexagonal head, designed to be driven by a wrench (spanner). An ASME
B18.2.1 compliant cap screw has somewhat tighter tolerances than a hex
bolt for the head height and the shank length. The nature of the
tolerance difference allows an ASME B18.2.1 hex cap screw to always fit
where a hex bolt is installed but a hex bolt could be slightly too large
to be used where a hex cap screw is designed in.
As a material, 18-8 Stainless steel offers resistance to weather and other corrosive environments. This finish makes the hex cap screw a corrosion resistant fastener in environments similar to fresh water applications. Please note that in salt water applications, the salt creates an extremely corrosive environment, so we recommend upgrading to hex cap screws in
316 Stainless Steel.
To complete the assembly in 18-8/304 Stainless Steel shop our selection of matching
hex finish nuts and standard flat washers.