Exact M4 × 4 Geometry
The current JSO screw table identifies M4 × 4, 9 mm head diameter, 6.3 mm overall length, and T15 drive.


JSO 39076-0-04040-R is the exact non-cutting M4 × 4 extra-large-head TORX clamping screw with 9 mm head diameter, 6.3 mm overall length, and T15 drive, including verified use in the JSO 22180 reversible-insert cutter system.
Exact JSO/Titan configuration verified against the current manufacturer family record and the supplied Titan commerce SKU.
Confirm exact Part-No. 39076-0-04040-R, M4 × 4 thread/length, 9 mm head diameter, 6.3 mm overall length, T15 drive, and compatibility with the specific JSO cutter before replacing a clamping screw.
JSO 39076-0-04040-R is the exact M4 × 4 extra-large-head TORX clamping screw in JSO's 39076 screw family. The current general catalogue lists dK 9 mm, L1 6.3 mm, and TORX size T15.
The screw is a non-cutting service component. It must therefore be selected by its exact thread, head geometry, overall length, TORX drive, and verified tool-system use rather than by any cutting-material classification.
JSO also lists this exact M4 × 4 T15 screw as an accessory/service component for the 22180 reversible-insert bevel/folding-cutter system.
Technical Specifications
The current JSO screw table identifies M4 × 4, 9 mm head diameter, 6.3 mm overall length, and T15 drive.
This item is a clamping fastener, so it is deliberately not routed to Titan's carbide or PCD material images.
JSO lists 39076-0-04040-R as a clamping screw in the 22180 reversible-insert bevel/folding-cutter system.
Confirm exact Part-No. 39076-0-04040-R, M4 × 4 thread/length, 9 mm head diameter, 6.3 mm overall length, T15 drive, and compatibility with the specific JSO cutter before replacing a clamping screw. Do not substitute a neighboring JSO row, hand, angle, coating, insert grade, screw size, or family simply because one or more dimensions appear similar.
JSO 39076-0-04040-R is a non-cutting extra-large-head clamping screw with M4 × 4 dimensions, dK 9 mm, L1 6.3 mm, and T15 drive.
Because fastener geometry is system-critical, do not substitute a neighboring 39076 length or head configuration simply because the thread diameter is the same.