SOCKET SCREW – BUTTOM HEAD
ISO 7380 / ASME B 18.3
Thread Type : A straight shank fastener with external threads designed to travel through a hole or nut that’s pre-tapped to make a mating thread for the screw.
| CODE | SPEC (DIA) | SPEC (LENGTH) | HEAD DIA | HEAD HEIGHT | DRIVE | MATERIAL | FINISHING |
| STSOCB | #0 | 1/8″ / 3/16″ / 1/4″ / 5/16″ / 3/8″ / 1/2″ / 5/8″ / 3/4″ / 1″ | 0.114 | 0.032 | hex socket | Steel / Stainless Steel / Brass | Black Oxide / Zinc Clear Trivalent Cr3+ / Passivated / Black Zinc Plated |
| STSOCB | #1 | 1/8″ / 3/16″ / 1/4″ / 3/8″ | 0.139 | 0.039 | hex socket | ||
| STSOCB | #2 | 1/16″ / 3/32″ / 1/8″ / 3/16″ / 1/4″ / 5/16″ / 3/8″ / 1/2″ / 5/8″ / 3/4″ / 1″ | 0.164 | 0.046 | hex socket | ||
| STSOCB | #3 | 1/8″ / 3/16″ / 1/4″ / 3/8″ / 1/2″ / 5/8″ / 3/4″ / 1″ | 0.188 | 0.052 | hex socket | ||
| STSOCB | #4 | 1/8″ / 3/16″ / 1/4″ / 3/8″ / 1/2″ / 9/16″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ | 0.213 | 0.059 | hex socket | ||
| STSOCB | #5 | 3/16″ / 1/4″ / 3/8″ / 1/2″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ | 0.238 | 0.066 | hex socket | ||
| STSOCB | #6 | 1/8″ / 3/16″ / 1/4″ / 3/8″ / 1/2″ / 9/16″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ / 3″ | 0.262 | 0.073 | hex socket | ||
| STSOCB | #8 | 1/8″ / 3/16″ / 1/4″ / 3/8″ / 1/2″ / 9/16″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ / 3″ | 0.312 | 0.087 | hex socket | ||
| STSOCB | #10 | 3/16″ / 1/4″ / 3/8″ / 1/2″ / 9/16″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ / 2-1/4″ / 3″ | 0.361 | 0.101 | hex socket | ||
| STSOCB | #12 | 3/8″ / 1/2″ / 5/8″ / 3/4″ / 1″ | 0.410 | 0.115 | hex socket | ||
| STSOCB | #1/4 | 3/16″ / 1/4″ / 3/8″ / 1/2″ / 9/16″ / 5/8″ / 3/4″ / 1″ / 1-1/4″ / 1-1/2″ / 2″ / 2-1/4″ / 3″ / 3-1/4″ / 3-1/2″ / 4″ | 0.437 | 0.132 | hex socket | ||
| STSOCB | M3 | 6/8/10/12/16/20/25/30 | 5.4-5.7 | 1.4-1.65 | hex socket | Steel / Stainless Steel / Brass | Black Oxide / Zinc Clear Trivalent Cr3+ / Passivated / Black Zinc Plated |
| STSOCB | M4 | 6/8/10/12/16/20/25/30/35/40 | 7.24-7.6 | 1.95-2.20 | hex socket | ||
| STSOCB | M5 | 8/10/12/16/20/25/30/35/40/45/50 | 9.14-9.50 | 2.50-2.75 | hex socket | ||
| STSOCB | M6 | 10/12/16/20/25/30/35/40/45/50/55/60 | 10.07-10.50 | 3.00-3.33 | hex socket | ||
| STSOCB | M8 | 12/16/20/25/30/35/40/45/50/55/60/65/70/80 | 13.57-14.00 | 4.40-4.40 | hex socket | ||
| STSOCB | M10 | 16/20/25/30/35/40/45/50/55/60/65/70/80/90 | 17.07-17.50 | 5.20-5.50 | hex socket |