Original S 5513 020-55 Alloy Steel Torx Screw M2.0 5.5mm Length for Indexable Carbide Insert Fastening CNC Tools
Original San**k 5513 020-55 Alloy Steel Torx Screw M2.0 5.5mm Length for Indexable Carbide Insert Fastening CNC Tools
The Coromant 5513 020-55 Torx Countersunk Insert Screw is an original precision fastening spare part specially developed by S Coromant for locking indexable carbide inserts on turning and milling tool holders. It adopts M2.0 metric standard thread, total length 5.5mm, internal T6 Torx drive and 60° raised countersunk head structure. Manufactured from high-strength alloy steel with anti-oxidation hardening treatment, this screw delivers stable clamping force, high tensile strength and excellent wear resistance under continuous CNC cutting loads. It is the standard matching fastener for small-size turning/milling inserts, widely used on general steel, alloy steel and stainless steel machining tool systems.
- Brand: S Coromant (Swedish world-class cutting tool manufacturer)
- Full Part Number: 5513 020-55
- Thread Specification: M2.0 standard metric thread, right-hand thread
- Total Screw Length: 5.5 mm
- Drive Type: Internal T6 Torx (Torx Plus compatible)
- Head Form: 60° raised countersunk head, low-profile flush mounting
- Base Material: High tensile quenched alloy steel
- Surface Treatment: Black anti-rust hardening finish, friction reduction
- Application Purpose: Clamping & fixing indexable carbide inserts on tool holders
- Matching Tools: T6 Torx screwdriver / Torx bit wrench
- Industry Standard: ISO & S internal 5513 series fastening specification
| Item | Parameter |
|---|---|
| Complete Model Code | 5513 020-55 |
| Thread Size | M2.0 (Pitch: 0.4mm standard metric fine pitch) |
| Overall Length | 5.5 mm |
| Internal Drive | T6 Torx recess |
| Head Angle | 60° countersunk taper angle |
| Head Outer Diameter | 3.05 mm |
| Head Thickness | 1.1 mm |
| Raw Material | High strength quenched alloy steel |
| Surface Coating | Black anti-wear & anti-corrosion oxidation treatment |
| Thread Tolerance Class | Medium tight fit for insert clamping |
| Single Pack Quantity | 1 pc per original package |
| Compatible Tooling | Small turning inserts, miniature milling inserts & matching tool holders |
| Origin | Made in Sweden |
| Hardness After Heat Treatment | HRC 52–56 |
- Small-size indexable turning inserts (CCMT, DCMT, SCMT mini series)
- Miniature shoulder milling inserts, small face mill inserts
- S , Pramet, ZCCCT and other universal standard small tool holders
Carbon steel, alloy structural steel, stainless steel, pre-hardened mold steel, cast iron (general CNC machining mass production)
- Fastening small-size carbide indexable inserts on CNC turning tool holders
- Locking miniature milling inserts for tiny part precision machining
- Mold, automotive miniature fitting, electronic component turning & milling
- Batch automatic lathe, machining center long-term continuous cutting production
- Precision machining requiring consistent stable insert clamping without loosening
- High-strength quenched alloy steel substrate: High tensile and shear strength, resists screw breakage under tightening torque
- T6 Torx internal drive design: Uniform stress distribution, prevents drive slot slipping during repeated disassembly
- 60° low countersunk head: Flush mounting without interfering chip flow, avoids chip scratching insert surface
- Standard M2.0×5.5 dimension: Universal interchangeable for most mini indexable insert systems
- Black anti-corrosion surface treatment: Resists coolant erosion, extends service life under wet cutting conditions
- Strict Swedish precision thread grinding: Stable thread fit, anti-loosening during high-speed cutting vibration
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