Our miniature shoulder screws get machined to comply with tight
tolerances for length and diameter. You can get screws with diameters
ranging from 3/32 inch to 1/2 inch (metric sizes, 4.0 mm to 12 mm).
Our diameter tolerances are + .000 to - .001, and our shoulder length
tolerances range are + .002 to - .000.
Over the years, the range of sizes offered in precision grade shoulder screws has expanded considerably
Both smaller and larger shoulder diameters and their associated range of shoulder lengths have been added.
Standard precision grade shoulder screws are available in diameters from 1/8 to 1/2 diameter.
Just a few years ago, a standard selection of miniature shoulder screws were made available.
These have a 3/32 shoulder diameter and lengths from 3/32 to 1/2.
A limited list of standard low head shoulder screws is also available.
Other drive types such as hex socket drives and cross recess (Phillips) drives have become available as standards.
The tolerance standards first created still persist although there is no established standard
for precision grade shoulder screwsby a recognized standards organization.