TAPPING SCREW – HEX WASHER HEAD
DIN 6928 / ASME B18.6.3
Thread Type : Thread forming tapping screws are generally for application in materials where large internal stresses are permissible or desirable, to increase resistance to loosening.
| CODE | SPEC (DIA) | SPEC (LENGTH) | WIDTH ACROSS FLATS | HEAD HEIGHT | WASHER DIA | DRIVE | MATERIAL | FINISHING |
| STTSP | #6 | 1/2″ / 3/4″ | 0.244-0.250 | 0.080-0.093 | 0.302-0.328 | slotted | Steel / Stainless Steel / Brass | Zinc Clear Trivalent Cr3+ / Passivated / Black Zinc Plated / Green Zinc Plated |
| STTSP | #8 | 3/8″ / 1/2″ / 5/8″ / 1″ / 1-1/4″ / 1-1/2″ | 0.244-0.250 | 0.096-0.110 | 0.322-0.348 | slotted | ||
| STTSP | #10 | 3/8″ / 1/2″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ / 2-1/2″ | 0.305-0.312 | 0.105-0.120 | 0.384-0.414 | slotted | ||
| STTSP | #12 | 1/2″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ / 2-1/2″ | 0.305-0.312 | 0.139-0.155 | 0.398-0.432 | slotted | ||
| STTSP | #14 | 1/2″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ / 2-1/2″ | 0.367-0.375 | 0.172-0.190 | 0.480-0.520 | slotted | ||
| STTSP | M2.9 | 6.5/9.5/13/16/19 | 3.82-4 | 2.5-2.8 | 5.8-6.3 | hex | ||
| STTSP | M3.5 | 6.5/9.5/13/16/19/22 | 5.32-5.5 | 3-3.4 | 7.6-8.3 | hex | ||
| STTSP | M4.2 | 9.5/13/16/19/22/25 | 6.78-7 | 3.6-4.1 | 8.1-8.8 | hex | ||
| STTSP | M4.8 | 9.5/13/16/19/22/25 | 7.78-8 | 3.8-4.3 | 9.8-10.5 | hex | ||
| STTSP | M5.5 | 13/16/19/22/25/32/38 | 7.78-8 | 4.8-5.4 | 10-11 | hex |