OSG Threading
EX-SUS-SFT Spiral Fluted Tap for Stainless Steels
Workpiece material (ISO)
M · StainlessN · Non-ferrous
HSSE spiral fluted tap with a Steam Oxide surface treatment for blind-hole tapping in stainless steel, copper, and thermoplastics — the treatment reduces galling and built-up edge on gummy, work-hardening materials. Offered in Metric (M), Unified (U/UNC), and Whitworth (W) thread types, plus a long-shank (EX-LT-SUS-SFT) variant.
Features & uses
Engineered for performance
1
Blind-hole spiral flute
Spiral flutes lift chips up and out of the hole, suited to blind holes where chips have no path out the bottom.
2
Stainless / copper / thermoplastic
Suited to tapping blind holes in stainless steel, copper, and thermoplastics.
3
Steam Oxide treatment
A Steam Oxide surface treatment reduces friction and adhesion on gummy, non-free-machining materials.
4
Long-shank variant available
Also offered as EX-LT-SUS-SFT, a long-shank version for extended reach.
Workpiece material
Material applicability
Stainless steel
- Stainless steel SUS
Catalogue mark: ◎
Non-ferrous
- Copper Cu
Catalogue mark: ◎
- Brass Bs
- Brass casting BsC
- Bronze PB
- Aluminum rolled AL
- Aluminum alloy casting AC,ADC
- Magnesium alloy casting MC
- Zinc alloy casting ZDC
Source: Catalogue · OSG 2025-26 Work Material chart, visually reviewed for EX-SUS-SFT. · OSG 2025-26 catalogue Work Material chart
Specifications
Sizes & part numbers
M2 × 0.4
M2.3 × 0.4
M2.5 × 0.45
M2.6 × 0.45
M3 × 0.6
M3 × 0.5
M3.5 × 0.6
M4 × 0.75
M4 × 0.7
M5 × 0.9
M5 × 0.8
M6 × 1
M8 × 1.25
M8 × 1
M10 × 1.5
M10 × 1.25
M10 × 1
M12 × 1.75
M12 × 1.5
M12 × 1.25
M12 × 1
M14 × 2
M14 × 1.5
M16 × 2
M16 × 1.5
M18 × 2.5
M18 × 1.5
M20 × 2.5
M20 × 1.5
M22 × 2.5
M22 × 1.5
M24 × 3
M24 × 1.5
M27 × 3
M30 × 3.5
M33 × 1.5
M33 × 3.5
M36 × 1.5
M36 × 4
M42 × 1.5
M42 × 4.5
No.4-40 UNC
No.4-48 UNF
No.5-40 UNC
No.5-44 UNF
No.6-32 UNC
No.6-40 UNF
No.8-32 UNC
No.8-36 UNF
No.10-24 UNC
No.10-32 UNF
1/4-20 UNC
1/4-28 UNF
5/16-18 UNC
5/16-24 UNF
3/8-16 UNC
3/8-24 UNF
7/16-14 UNC
7/16-20 UNF
1/2-13 UNC
1/2-20 UNF
5/8-11 UNC
5/8-18 UNF
3/4-10 UNC
3/4-16 UNF
7/8-9 UNC
7/8-14 UNF
1-8 UNC
1-12 UNF
W 1/8-40
W 3/16-24
W 1/4-20
W 5/16-18
W 3/8-16
W 1/2-12
W 5/8-11
W 3/4-10
W 7/8-9
W 1-8
No sizes match those filters.
Widen a range or clear a field. Need a size not listed? Contact us →
| ORDER NO. | SIZE | GRADE | FLUTE L | OAL | SHANK | COATING |
|---|---|---|---|---|---|---|
| 24101 | M2 × 0.4 · STD | OH1 | 12 | 40 | 3 | HSSE (Steam Oxide) |
| 24104 | M2.3 × 0.4 · STD | OH1 | 13 | 42 | 3 | HSSE (Steam Oxide) |
| 24105 | M2.5 × 0.45 · STD | OH2 | 14 | 44 | 3 | HSSE (Steam Oxide) |
| 24107 | M2.6 × 0.45 · STD | OH2 | 14 | 44 | 3 | HSSE (Steam Oxide) |
| 24110 | M3 × 0.6 · STD | OH2 | 6 | 46 | 4 | HSSE (Steam Oxide) |
| 15111 | M3 × 0.5 · STD | OH2 | 6 | 46 | 4 | HSSE (Steam Oxide) |
| 24113 | M3 × 0.5 · STD+2 | OH4 | 6 | 46 | 4 | HSSE (Steam Oxide) |
| 24114 | M3.5 × 0.6 · STD | OH2 | 7.2 | 48 | 4 | HSSE (Steam Oxide) |
| 24115 | M4 × 0.75 · STD | OH2 | 8.4 | 52 | 5 | HSSE (Steam Oxide) |
| 15116 | M4 × 0.7 · STD | OH2 | 8.4 | 52 | 5 | HSSE (Steam Oxide) |
| 24118 | M4 × 0.7 · STD+2 | OH4 | 8.4 | 52 | 5 | HSSE (Steam Oxide) |
| 24119 | M5 × 0.9 · STD | OH2 | 9.6 | 60 | 5.5 | HSSE (Steam Oxide) |
| 15120 | M5 × 0.8 · STD | OH2 | 9.6 | 60 | 5.5 | HSSE (Steam Oxide) |
| 24122 | M5 × 0.8 · STD+2 | OH4 | 9.6 | 60 | 5.5 | HSSE (Steam Oxide) |
| 15124 | M6 × 1 · STD | OH2 | 12 | 62 | 6 | HSSE (Steam Oxide) |
| 24126 | M6 × 1 · STD+2 | OH4 | 12 | 62 | 6 | HSSE (Steam Oxide) |
| 15132 | M8 × 1.25 · STD | OH3 | 15 | 70 | 6.2 | HSSE (Steam Oxide) |
| 24133 | M8 × 1.25 · STD+2 | OH5 | 15 | 70 | 6.2 | HSSE (Steam Oxide) |
| 24134 | M8 × 1 · STD | OH2 | 15 | 70 | 6.2 | HSSE (Steam Oxide) |
| 15142 | M10 × 1.5 · STD | OH3 | 18 | 75 | 7 | HSSE (Steam Oxide) |
| 24143 | M10 × 1.5 · STD+2 | OH5 | 18 | 75 | 7 | HSSE (Steam Oxide) |
| 15144 | M10 × 1.25 · STD | OH3 | 18 | 75 | 7 | HSSE (Steam Oxide) |
| 24145 | M10 × 1.25 · STD+2 | OH5 | 18 | 75 | 7 | HSSE (Steam Oxide) |
| 24146 | M10 × 1 · STD | OH2 | 18 | 75 | 7 | HSSE (Steam Oxide) |
| 15154 | M12 × 1.75 · STD | OH3 | 21 | 82 | 8.5 | HSSE (Steam Oxide) |
| 24155 | M12 × 1.75 · STD+2 | OH5 | 21 | 82 | 8.5 | HSSE (Steam Oxide) |
| 24156 | M12 × 1.5 · STD | OH3 | 21 | 82 | 8.5 | HSSE (Steam Oxide) |
| 24157 | M12 × 1.5 · STD+2 | OH5 | 21 | 82 | 8.5 | HSSE (Steam Oxide) |
| 24158 | M12 × 1.25 · STD | OH3 | 21 | 82 | 8.5 | HSSE (Steam Oxide) |
| 24159 | M12 × 1.25 · STD+2 | OH5 | 21 | 82 | 8.5 | HSSE (Steam Oxide) |
| 24160 | M12 × 1 · STD | OH2 | 21 | 82 | 8.5 | HSSE (Steam Oxide) |
| 24168 | M14 × 2 · STD | OH3 | 30 | 88 | 10.5 | HSSE (Steam Oxide) |
| 24169 | M14 × 2 · STD+2 | OH5 | 30 | 88 | 10.5 | HSSE (Steam Oxide) |
| 24170 | M14 × 1.5 · STD | OH3 | 30 | 88 | 10.5 | HSSE (Steam Oxide) |
| 24172 | M14 × 1.5 · STD+2 | OH5 | 30 | 88 | 10.5 | HSSE (Steam Oxide) |
| 24176 | M16 × 2 · STD | OH3 | 32 | 95 | 12.5 | HSSE (Steam Oxide) |
| 24177 | M16 × 2 · STD+2 | OH5 | 32 | 95 | 12.5 | HSSE (Steam Oxide) |
| 24178 | M16 × 1.5 · STD | OH3 | 32 | 95 | 12.5 | HSSE (Steam Oxide) |
| 24180 | M16 × 1.5 · STD+2 | OH5 | 32 | 95 | 12.5 | HSSE (Steam Oxide) |
| 24184 | M18 × 2.5 · STD | OH3 | 37 | 100 | 14 | HSSE (Steam Oxide) |
| 24185 | M18 × 2.5 · STD+2 | OH5 | 37 | 100 | 14 | HSSE (Steam Oxide) |
| 24186 | M18 × 1.5 · STD | OH3 | 37 | 100 | 14 | HSSE (Steam Oxide) |
| 24188 | M18 × 1.5 · STD+2 | OH5 | 37 | 100 | 14 | HSSE (Steam Oxide) |
| 24192 | M20 × 2.5 · STD | OH3 | 37 | 105 | 15 | HSSE (Steam Oxide) |
| 24194 | M20 × 2.5 · STD+2 | OH5 | 37 | 105 | 15 | HSSE (Steam Oxide) |
| 24196 | M20 × 1.5 · STD | OH3 | 37 | 105 | 15 | HSSE (Steam Oxide) |
| 24197 | M20 × 1.5 · STD+2 | OH5 | 37 | 105 | 15 | HSSE (Steam Oxide) |
| 24198 | M22 × 2.5 · STD | OH4 | 38 | 115 | 17 | HSSE (Steam Oxide) |
| 24199 | M22 × 2.5 · STD+2 | OH6 | 38 | 115 | 17 | HSSE (Steam Oxide) |
| 24200 | M22 × 1.5 · STD | OH3 | 38 | 115 | 17 | HSSE (Steam Oxide) |
| 24201 | M22 × 1.5 · STD+2 | OH5 | 38 | 115 | 17 | HSSE (Steam Oxide) |
| 24202 | M24 × 3 · STD | OH4 | 45 | 120 | 19 | HSSE (Steam Oxide) |
| 24203 | M24 × 3 · STD+2 | OH6 | 45 | 120 | 19 | HSSE (Steam Oxide) |
| 24204 | M24 × 1.5 · STD | OH3 | 45 | 120 | 19 | HSSE (Steam Oxide) |
| 24205 | M24 × 1.5 · STD+2 | OH5 | 45 | 120 | 19 | HSSE (Steam Oxide) |
| 24206 | M27 × 3 · STD | OH4 | 45 | 130 | 20 | HSSE (Steam Oxide) |
| 24208 | M30 × 3.5 · STD | OH4 | 48 | 135 | 23 | HSSE (Steam Oxide) |
| 24963 | M33 × 1.5 · STD | OH3 | 37 | 110 | 25 | HSSE (Steam Oxide) |
| 24961 | M33 × 3.5 · STD | OH4 | 51 | 145 | 25 | HSSE (Steam Oxide) |
| 24967 | M36 × 1.5 · STD | OH3 | 39 | 110 | 28 | HSSE (Steam Oxide) |
| 24965 | M36 × 4 · STD | OH4 | 57 | 155 | 28 | HSSE (Steam Oxide) |
| 24971 | M42 × 1.5 · STD | OH3 | 39 | 120 | 32 | HSSE (Steam Oxide) |
| 24969 | M42 × 4.5 · STD | OH4 | 60 | 175 | 32 | HSSE (Steam Oxide) |
| 15302 | No.4-40 UNC · STD | OH2 | 7.7 | 44 | 3 | HSSE (Steam Oxide) |
| 15303 | No.4-48 UNF · STD | OH2 | 7.7 | 44 | 3 | HSSE (Steam Oxide) |
| 15306 | No.5-40 UNC · STD | OH2 | 7.7 | 46 | 4 | HSSE (Steam Oxide) |
| 15307 | No.5-44 UNF · STD | OH2 | 7.7 | 46 | 4 | HSSE (Steam Oxide) |
| 15310 | No.6-32 UNC · STD | OH2 | 9.6 | 48 | 4 | HSSE (Steam Oxide) |
| 15311 | No.6-40 UNF · STD | OH2 | 9.6 | 48 | 4 | HSSE (Steam Oxide) |
| 15314 | No.8-32 UNC · STD | OH2 | 9.6 | 52 | 5 | HSSE (Steam Oxide) |
| 15315 | No.8-36 UNF · STD | OH2 | 9.6 | 52 | 5 | HSSE (Steam Oxide) |
| 15318 | No.10-24 UNC · STD | OH2 | 12.7 | 60 | 5.5 | HSSE (Steam Oxide) |
| 15319 | No.10-32 UNF · STD | OH2 | 12.7 | 60 | 5.5 | HSSE (Steam Oxide) |
| 15325 | 1/4-20 UNC · STD | OH3 | 15.3 | 62 | 6 | HSSE (Steam Oxide) |
| 15326 | 1/4-28 UNF · STD | OH2 | 15.3 | 62 | 6 | HSSE (Steam Oxide) |
| 15329 | 5/16-18 UNC · STD | OH3 | 17 | 70 | 6.1 | HSSE (Steam Oxide) |
| 15330 | 5/16-24 UNF · STD | OH2 | 17 | 70 | 6.1 | HSSE (Steam Oxide) |
| 15333 | 3/8-16 UNC · STD | OH3 | 19 | 75 | 7 | HSSE (Steam Oxide) |
| 15334 | 3/8-24 UNF · STD | OH2 | 19 | 75 | 7 | HSSE (Steam Oxide) |
| 15337 | 7/16-14 UNC · STD | OH3 | 22 | 80 | 8 | HSSE (Steam Oxide) |
| 15338 | 7/16-20 UNF · STD | OH3 | 22 | 80 | 8 | HSSE (Steam Oxide) |
| 15342 | 1/2-13 UNC · STD | OH3 | 23 | 85 | 9 | HSSE (Steam Oxide) |
| 15345 | 1/2-20 UNF · STD | OH3 | 23 | 85 | 9 | HSSE (Steam Oxide) |
| 15348 | 5/8-11 UNC · STD | OH3 | 32 | 95 | 12 | HSSE (Steam Oxide) |
| 15349 | 5/8-18 UNF · STD | OH3 | 32 | 95 | 12 | HSSE (Steam Oxide) |
| 15352 | 3/4-10 UNC · STD | OH3 | 37 | 105 | 14 | HSSE (Steam Oxide) |
| 15353 | 3/4-16 UNF · STD | OH3 | 37 | 105 | 14 | HSSE (Steam Oxide) |
| 15356 | 7/8-9 UNC · STD | OH4 | 38 | 115 | 17 | HSSE (Steam Oxide) |
| 15357 | 7/8-14 UNF · STD | OH3 | 38 | 115 | 17 | HSSE (Steam Oxide) |
| 15360 | 1-8 UNC · STD | OH4 | 45 | 125 | 20 | HSSE (Steam Oxide) |
| 15361 | 1-12 UNF · STD | OH3 | 45 | 125 | 20 | HSSE (Steam Oxide) |
| 24471 | W 1/8-40 · STD | OH2 | 11 | 46 | 4 | HSSE (Steam Oxide) |
| 24472 | W 3/16-24 · STD | OH2 | 16 | 60 | 5.5 | HSSE (Steam Oxide) |
| 24473 | W 1/4-20 · STD | OH2 | 19 | 62 | 6 | HSSE (Steam Oxide) |
| 24474 | W 5/16-18 · STD | OH3 | 22 | 70 | 6.1 | HSSE (Steam Oxide) |
| 24475 | W 3/8-16 · STD | OH3 | 24 | 75 | 7 | HSSE (Steam Oxide) |
| 24477 | W 1/2-12 · STD | OH3 | 29 | 85 | 9 | HSSE (Steam Oxide) |
| 24479 | W 5/8-11 · STD | OH3 | 32 | 95 | 12 | HSSE (Steam Oxide) |
| 24480 | W 3/4-10 · STD | OH3 | 37 | 105 | 14 | HSSE (Steam Oxide) |
| 24481 | W 7/8-9 · STD | OH4 | 38 | 115 | 17 | HSSE (Steam Oxide) |
| 24482 | W 1-8 · STD | OH4 | 45 | 125 | 20 | HSSE (Steam Oxide) |
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