Insert Screws
M5×12 · pitch 0.8 · TORX® T20
Product photos
Actual photos, not renders
Illustration note
The image shows an actual part of this specification; appearance differs with surface treatment and head style, and the delivered part prevails.
Images are for appearance and structure reference; dimensions and tolerances are subject to the specifications and the applicable standards on this page.
Product description
Compiled from the existing technical description of this product on this site
The TORX® T20 insert screw is M5×12 with a pitch of 0.8, property class 12.9 and a 60° head angle. TORX® T20 is a widely available Torx size with easily sourced tools; combined with a precision thread it gives consistent tightening and suits the fastening of small and medium-sized tools and tool holders.
Specifications
The parameters listed on this page are subject to final inspection and the applicable standards; items not listed follow the customer drawing or the order agreement and are not committed by default.
| Specification | M5×12 |
|---|---|
| Material | Alloy steel (42CrMo) |
| Strength class | Class 12.9 |
| Tensile strength | ≥1200 MPa |
| Yield strength | ≥1080 MPa |
| Hardness | HRC 39-44 |
| Thread tolerance | 6g（ISO 965-1） |
| Drive | TORX®（ISO 10664） |
| Surface treatment | Black oxide / zinc plating / zinc-nickel alloy (optional) |
| Standard | Thread GB/T 196, GB/T 197 (ISO 965-1) 6g; drive ISO 10664; outline dimensions to customer drawing / company standard |
Spec lookup
Filter directly among the 13 models in this series by your operating conditions - pure front-end filtering, no redirects, no URL changes
Filter results are based on the specification fields published on each model page and are for preliminary screening only; the final selection must be confirmed in light of the actual load, plate thickness and assembly process.
Drawings and documentation
Official catalogues and manuals are available for direct download; custom drawings are handled per project
Manufacturing process
The usual process route for this product family; actual operations follow the drawing and order requirements.
- Cold headingHead and drive formed in one press operation from wire rod
- Thread rolling / turningThread accuracy and machining of the mating faces
- Heat treatmentQuenched and tempered to the specified property class
- Surface treatmentBlack oxide / zinc plated / zinc-nickel alloy
- 100% inspectionDimensions, hardness and torque sampled batch by batch
Capacity & delivery
Taken from the company's published capacity and certification information; no unverified claims are included.
FAQ
Material, standards, surface treatment and installation points for this model; the data comes from the specification table on this page and from the national standards cited in the answers.
Q1What material does “TORX® T20 Thread Inserts M5×12” use, and what strength level does it reach?
The specification table on this page states: material alloy steel (42CrMo); property class 12.9; tensile strength ≥1200 MPa; yield strength ≥1080 MPa; hardness HRC 39-44. Material certificates and mechanical property test reports can be supplied with the goods; batch acceptance follows the values stated above.
Q2To which standards is the TORX® T20 insert screw M5×12 produced and inspected?
Standards stated in the specification table on this page: thread GB/T 196, GB/T 197 (ISO 965-1) 6g; drive ISO 10664; external dimensions per customer drawing / company standard. Dimensional inspection reports can be supplied with the goods; batch acceptance is carried out according to the standards above and the drawings agreed by both parties.
Q3Which surface treatments are available for “TORX® T20 Thread Inserts M5×12”, and how do you choose?
The specification table on this page lists the surface treatment: black oxide / zinc plating / zinc-nickel alloy (optional). The coatings differ in appearance, corrosion resistance and cost; choose according to the service environment and the order agreement.
Q4Where is the TORX® T20 insert screw M5×12 used?
Typical applications listed in the product description on this page: CNC machining center tool clamping; tool holder locking on milling and turning machines; fastening on mould processing equipment; high-precision assembly fixtures; equipment for machining automotive parts. Overview: the TORX® T20 insert screw is M5×12 with a pitch of 0.8, property class 12.9 and a 60° head angle.
Q5What does class 12.9 mean for the performance of “TORX® T20 Thread Inserts M5×12”?
Under GB/T 3098.1 (ISO 898-1), property class 12.9 denotes a nominal tensile strength of 1200 MPa with a yield-to-tensile ratio of 0.9 (yield strength not below 1080 MPa). This series is made of 42CrMo alloy steel; the specification table on this page states a tensile strength of ≥1200 MPa and a hardness of HRC 39–44. (Applies to this model: “TORX® T20 insert screw M5×12”.)
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