When a threaded component must be seated with external wrench access, 3/8-16 x 3 1/4 provides the traditional square head set screw format.
Typical applications include construction machinery where large wrench flats are easier to clean and grip. Use the size to match the thread and length, then call out Half Dog, Full Dog, Cone, Oval, or Flat as the required point. Point selection should reflect the shaft feature, acceptable marking, and expected service adjustment.
Cold Headers keeps the record focused on usable engineering details so buyers can compare the callout against drawings and service notes. Review the selected point, wrench clearance, and mating feature before substitution. Oval points suit grooves or repeated adjustment where a radiused contact is useful.
Call 773-775-7900 or email Sales@coldheaders.com for pricing, availability, or a quote.
