1/4-20 H3 3FL SPFL MOD
Spiral Flute Tap; 1/4″ - 20 ; 2-1/2″ OAL ; 3 FL ; HSS-PM ; HL ; H3 ; Series BI
| Thread Diameter Size (TDZ) | 1/4″ | Standard | 302A |
| Threads per Inch (TPI) | 20 | Chamfer | 2P-3P |
| Thread Standard | UNC | Coating | HL |
| Overall Length (OAL) | 2-1/2″ | Shank Type | Square |
| Thread Cutting Part Length (THL) | 0.433″ | Flute Type | Spiral |
| Usable Length (LU) | 1″ | End Shape | Modified Bottoming |
| Connection Diameter Machine Side (DCONMS) | 0.255″ | Cutting Direction (HAND) | Right Hand |
| Flute Count (NOF) | 3 | Length Group | 2.5xD |
| Flute Helix Angle (FHA) | 40 Degrees | Square Size | 0.191″ |
| Applicable Material | | Steel | Stainless Steel | | Measurement Type | Inch |
| Cutting Edge Material | HSS-PM | Tapping Prehole Diameter (Pre-hole) | 0.2045″ |
| Thread Tolerance Class (TCTR) | H3 | Series/List # | BI |
| Special Feature | Blue Ring | Thread Size | 1/4″ - 20 |
Product Features
| Country of Origin | S.Korea |
Shipping Info
Package Length
3.125
Package Width
0.5
Package Height
0.375
Package Weight
0.03
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