SAE International
SAE Standards Works
SAE International
Contact Us | Help | Shopping Cart
SAE Login

MA1508 - Undercuts for Straight Screw Threads - Metric

Details
Document Number: MA1508
Revision Number:
Title
Undercuts for Straight Screw Threads - Metric
Scope
This SAE Aerospace Standard (MA) provides recommended dimensional data for screw thread undercuts for straight "MJ" metric screw threads in accordance with MA1370.

The thread undercut data included in this document are primarily designed to provide a clearance for threading tool runout either where the thread is in a blind hole or where the thread is close to an adjacent shoulder. These thread undercuts are not recommended for bolts, screws, or studs which are required to be necked; e.g., reduced shank contiguous to the thread, to improve their tensile, impact, and cyclic load performance.

Recent Activity
Date Type