MACHINE SCREW – HEX HEAD
DIN 933 931 / ASME B 18.2.1

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) | WIDTH ACROSS FLATS | HEAD HEIGHT | DRIVE | MATERIAL | FINISHING |
| STMSH | #6 | 3/8″ / 1/2″ / 5/8″ / 3/4′ / 1″ / 1-1/4″ / 1-1/2″ | 1/4″ | 3/32″ | hex | Steel / Stainless Steel / Brass | Zinc Clear Trivalent Cr3+ / Passivated / Black Zinc Plated / Green Zinc Plated |
| STMSH | #8 | 3/8″ / 1/2″ / 5/8″ / 3/4′ / 1″ / 1-1/4″ / 1-1/2″ | 1/4″ | 7/64″ | hex | ||
| STMSH | #10 | 3/8″ / 1/2″ / 5/8″ / 3/4′ / 1″ / 1-1/4″ / 1-1/2″ | 5/16″ | 1/8″ | hex | ||
| STMSH | #12 | 3/8″ / 1/2″ / 5/8″ / 3/4′ / 1″ / 1-1/2″ | 5/16″ | 5/32″ | hex | ||
| STMSH | #1/4 | 3/8″ / 1/2″ / 5/8″ / 3/4′ / 1″ / 1-1/4″ / 1-1/2″ / 1-3/4″ / 2″ / 2-1/4″ / 2-1/2″ / 3″ / 3-1/2″ / 4″ / 4-1/2″ / 5″ / 5-1/2″ / 6″ / 7″ / 8″ | 7/16″ | 11/64″ | hex | ||
| STMSH | #3/8 | 3/4′ / 1″ / 1-1/4″ / 1-1/2″ / 1-3/4″ / 2″ / 2-1/4″ / 2-1/2″ / 3″ / 3-1/2″ / 4″ / 4-1/2″ / 5″ / 5-1/2″ / 6″ / 7″ / 8″ / 9″ / 10″ / 11″ / 12″ | 9/16″ | 1/4″ | hex | ||
| STMSH | #16/7 | 1″ / 1-1/4″ / 1-1/2″ / 1-3/4″ / 2″ / 2-1/4″ / 2-1/2″ / 3″ / 3-1/2″ / 4″ | 5/8″ | 19/64″ | hex | ||
| STMSH | #1/2 | 1/2″ / 3/4′ / 1″ / 1-1/4″ / 1-1/2″ / 1-3/4″ / 2″ / 2-1/4″ / 2-1/2″ / 3″ / 3-1/2″ / 4″ / 4-1/2″ / 5″ / 5-1/2″ / 6″ / 7″ / 8″ / 9″ / 10″ / 11″ / 12″ / 14″ / 16″ / 18″ / 20″ | 3/4″ | 11/32″ | hex | ||
| STMSH | #5/8 | 1″ / 1-1/4″ / 1-1/2″ / 1-3/4″ / 2″ / 2-1/4″ / 2-1/2″ / 3″ / 3-1/2″ / 4″ / 4-1/2″ / 5″ / 5-1/2″ / 6″ / 7″ / 8″ / 9″ / 10″ / 11″ / 12″ / 14″ | 15/16″ | 27/64″ | hex | ||
| STMSH | #3/4 | 1″ / 1-1/4″ / 1-1/2″ / 1-3/4″ / 2″ / 2-1/4″ / 2-1/2″ / 3″ / 3-1/2″ / 4″ / 4-1/2″ / 5″ / 5-1/2″ / 6″ / 7″ / 8″ / 9″ / 10″ / 12″ / 14″ | 1-1/8″ | 1/2″ | hex | ||
| STMSH | #7/8 | 1-1/2″ / 2″/ 2-1/2″ / 3″ / 4″ / 5″ / 7″ / 8″ | 1-5/16″ | 37/64″ | hex | ||
| STMSH | #1 | 1-1/2″ / 2″/ 2-1/2″ / 3″ / 4″ / 5″ / 6″ / 8″ / 9″ / 10″ / 12″ | 1-1/2″ | 43/64‘ | hex | ||
| STMSH | M1.6 | 2/3/4/5/6/7/8/10/12 | 3.2 | 1.1 | hex | Steel / Stainless Steel / Brass | Zinc Clear Trivalent Cr3+ / Passivated / Black Zinc Plated / Green Zinc Plated |
| STMSH | M2 | 3/4/5/6/7/8/10/12/14/16 | 4.0 | 1.4 | hex | ||
| STMSH | M2.5 | 3/4/5/6/7/8/10/12/14/16/18/20/22/25 | 5.0 | 1.7 | hex | ||
| STMSH | M3 | 4/5/6/7/8/10/12/14/16/18/20/22/25/28/30 | 5.5 | 2 | hex | ||
| STMSH | M3.5 | 5/6/7/8/10/12/14/16/18/20/22/25/28/30/35 | 6.0 | 2.4 | hex | ||
| STMSH | M4 | 5/6/7/8/10/12/14/16/18/20/22/25/28/30/35/40/45/50/55/60/65/70 | 7.0 | 2.8 | hex | ||
| STMSH | M5 | 6/7/8/10/12/14/16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80 | 8.0 | 3.5 | hex | ||
| STMSH | M6 | 6/7/8/10/12/14/16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80 | 10.0 | 4 | hex | ||
| STMSH | M8 | 8/10/12/14/16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110 | 13.0 | 5.3 | hex | ||
| STMSH | M10 | 8/10/12/14/16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110/120/130/140/150 | 17.0 | 6.4 | hex | ||
| STMSH | M12 | 10/12/14/16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110/120/130/140/150 | 19.0 | 7.5 | hex | ||
| STMSH | M14 | 10/12/14/16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110/120/130/140/150 | 22.0 | 8.8 | hex | ||
| STMSH | M16 | 12/14/16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110/120/130/140/150 | 24.0 | 10 | hex | ||
| STMSH | M18 | 16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110/120/130/140/150/160/170/180/190/200 | 27.0 | 11.5 | hex | ||
| STMSH | M20 | 16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110/120/130/140/150/160/170/180/190/200 | 30 | 12.5 | hex | ||
| STMSH | M22 | 16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110/120/130/140/150/160/170/180/190/200 | 32 | 14 | hex | ||
| STMSH | M24 | 16/18/20/22/25/28/30/35/40/45/50/55/60/65/70/75/80/85/90/95/100/110/120/130/140/150/160/170/180/190/200 | 36 | 15 | hex |