JIS Cross vs. Phillips
Comparing 2 standards across 11 specifications. 11 key differences identified.
JIS B 1012 is a Japanese Industrial Standard cruciform screw drive commonly found on Japanese motorcycles (Honda, Yamaha, Kawasaki, Suzuki), cameras, and consumer electronics. Visually similar to Phillips, it features a shallower center pit and parallel 90-degree cross-wings engineered not to cam out, which easily strip when turned with standard Phillips screwdrivers.
The Phillips drive (Type I cross recess) is a self-centering cruciform drive system invented by John P. Thompson and commercialized by Henry F. Phillips in the 1930s (ANSI Type I / ISO 4757). Engineered with curved flutes and intentional cam-out torque limiting, it revolutionized high-speed automotive and aircraft assembly.
Specification Comparison Table
11 Parameters| Parameter / Spec | ||
|---|---|---|
|
Common Sizing Tiers
|
JIS #000, JIS #00, JIS #0, JIS #1, JIS #2, JIS #3 | PH000, PH00, PH0, PH1, PH2 (most common), PH3, PH4 |
|
Standard Specification
|
JIS B 1012 (Cruciform cross-recessed screws) | — |
|
Visual Identification
|
A single small raised circular dimple or dot stamped into the head face | — |
|
Flank Geometry
|
Parallel cross walls with a flat, shallow bottom recess (no cam-out slope) | — |
|
Cam-Out Tendency
|
Zero (Engineered to stay fully seated under high torque) | — |
|
Primary Applications
|
Japanese motorcycles (engine cases, carburetors), Shimano bicycle components, Nikon/Canon cameras | — |
|
Standard Specifications
|
— | ISO 4757 (Cross recesses) / ANSI Type I / DIN 7962 |
|
Drive Geometry
|
— | Cruciform 4-wing cross with rounded corners and 57° tapered flanks |
|
Self-Centering Capability
|
— | Yes (Driver tip automatically centers into recess) |
|
Intentional Cam-Out
|
— | Yes (Designed to cam-out when tightened to prevent over-torquing and thread stripping) |
|
Common Screw Pairings
|
— | Drywall screws, PC cases (#6-32), general wood and machine screws |