DRILLING SCREW – HEX WASHER HEAD
DIN 7504K / SAE J 933

Thread Type : Self drilling screws are a type of self-tapping screw that includes a drill points. These are used for metal-to-metal or metal-to-wood connections, and are most commonly used in thin metal applications such as working with steel studs.

| CODE | SPEC (DIA) | SPEC (LENGTH) | WIDTH ACROSS FLATS | HEAD HEIGHT | WASHER DIA | DRIVE | MATERIAL | FINISHING |
| STDSK | #4 | 3/8″ / 1/2″ / 3/4″ / 1″ | 0.181-0.188 | 0.049-0.060 | 0.225-0.243 | hex | Steel / Stainless Steel / Brass | Zinc Clear Trivalent Cr3+ / Passivated / Black Zinc Plated / Green Zinc Plated |
| STDSK | #6 | 1/4″ / 1/2″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ | 0.244-0.250 | 0.080-0.093 | 0.302-0.328 | hex | ||
| STDSK | #8 | 1/4″ / 1/2″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″/ 2-1/2″ / 3″ / 3-1/2″ / 4″ | 0.244-0.250 | 0.096-0.110 | 0.322-0.348 | hex | ||
| STDSK | #10 | 3/8″ / 1/2″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″/ 2-1/2″ / 3″ / 3-1/2″ / 4″ / 4-1/2″ / 5″ / 6″ | 0.305-0.312 | 0.105-0.120 | 0.384-0.414 | hex | ||
| STDSK | #12 | 1/2″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″/ 2-1/2″ / 3″ / 3-1/2″ / 4″ / 4-1/2″ / 5″ / 6″ | 0.305-0.312 | 0.139-0.155 | 0.398-0.432 | hex | ||
| STDSK | #14 | 1/2″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″/ 2-1/2″ / 3″ / 3-1/2″ / 4″ / 4-1/2″ / 5″ / 6″ | 0.367-0.375 | 0.172-0.190 | 0.480-0.520 | hex | ||
| STDSK | M2.9 | 9.5/13/16/19 | 3.82-4 | 2.5-2.8 | 5.8-6.3 | hex | Steel / Stainless Steel / Brass | Zinc Clear Trivalent Cr3+ / Passivated / Black Zinc Plated / Green Zinc Plated |
| STDSK | M3.5 | 9.5/13/16/19/22/25 | 5.32-5.5 | 3-3.4 | 7.6-8.3 | hex | ||
| STDSK | M3.9 | 13/16/19/22/25/32/38 | 5.32-5.5 | 3-3.4 | 7.6-8.3 | hex | ||
| STDSK | M4.2 | 13/16/19/22/25/32/38 | 6.78-7 | 3.6-4.1 | 8.1-8.8 | hex | ||
| STDSK | M4.8 | 13/16/19/22/25/32/38/45/50 | 7.78-8 | 3.8-4.3 | 9.8-10.5 | hex | ||
| STDSK | M5.5 | 16/19/22/25/32/38/45/50 | 7.78-8 | 4.8-5.4 | 10-11 | hex | ||
| STDSK | M6.3 | 19/22/25/32/38/45/50 | 9.78-10 | 5.9-5.9 | 12.2-13.5 | hex |